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Car Forum / Peugeot Cars / May 2005Porting & Polishing?
What does this process involve? How is it done? Is it something I could do myself or would I need a garage to do it? > What does this process involve? > How is it done? Is it something I could do myself or would I need a garage > to do it? If you can replace a headgasket, and take time to read a good book, and find a scrap head to practice on, it is something you can do yourself.  SignatureCarl Robson "Sorry Sir the meatballs are orf" (The poster formerly known as Skodapilot) http://www.bouncing-czechs.com > What does this process involve? > How is it done? Is it something I could do myself or would I need a garage > to do it? You can do it yourself. All you need is something like a dremel. Quite involved. It involves grinding away the inlet/exhaust ports in the head to match the alignment of the inlet/exhaust manifold as well as altering the shape of the ports then polish to smooth/increase airflow. On the pintos you used to creat an apple shape where the port turned towards the cylinder to greatly increase airflow. Its a bit of a black art. SignatureConor "Of all the things I've lost, I miss my mind the most." O.Osbourne. If done by a pro there is not much to be gained. UNLESS you fit bigger valves, carefully shape valve seats, etc. And then, you really need the manifolds, intake and exhausts to match or you are wasting your time. After all of that dont expect huge power gains unless you fit a better race cam, and remap/rejet it. And even then, you will be lucky to get a 25 percent increase. Signaturewww.diy-nitrous.fsnet.co.uk/ All about nitrous and how to DIY! www.dynamometer.fsnet.co.uk/ All about Dynamometers www.powerchair-review.fsnet.co.uk/ Powerchairs reviews and Robots www.tuning.wanadoo.co.uk/ All about engine tuning! (for dummies) > What does this process involve? > How is it done? Is it something I could do myself or would I need a > garage > to do it? > What does this process involve? > How is it done? Is it something I could do myself or would I need a garage > to do it? General: there are some good bits on the web about porting this one: http://www.sa-motorsports.com/diyport.shtm is American (so aimed at big V8s) and a bit commercial, but gives the general idea. What engine is it? It makes a lot of difference - both on the amount of info (i.e. people who have done it before!!) and how effective it will be. Some engines respond really well and on others its a complete waste of time. I'm half way through "porting and polishing" on my 1.4 K-series. Funnily enough, the best port do on these isn't actually anything to do with the breathing, it is actually to remove all the casting flash from around the coolant channels. I must have nearly doubled the size of the channels by just taking them back to what had been originally designed. > > What does this process involve? > > How is it done? Is it something I could do myself or would I need a garage [quoted text clipped - 8 lines] > be. Some engines respond really well and on others its a complete waste > of time. I'd imagine it is the 106 judging by his other post. Signature"Sorry Sir, the meatballs are Orf" The poster formerly known as Skodapilot. http://www.bouncing-czechs.com Yep, well guessed! I've got a 106 1.4xsi which I'm planning to port/polish when I take head off to fit a cam. Does anyone have any experience on these 1.4 TU engines? My girlfriend has 1.1ltr 106, would it be a complete waste of time on this as I'm desperate to tune it as much as possible for her too......... > Yep, well guessed! > > I've got a 106 1.4xsi which I'm planning to port/polish when I take head off > to fit a cam. Does anyone have any experience on these 1.4 TU engines? > My girlfriend has 1.1ltr 106, would it be a complete waste of time on this > as I'm desperate to tune it as much as possible for her too......... I would have thought there would be plenty of info on the TU engine. It has been around for a while. I'll check with a couple of friends that rally Pugs and Cits. > Yep, well guessed! > > I've got a 106 1.4xsi which I'm planning to port/polish when I take head off > to fit a cam. Does anyone have any experience on these 1.4 TU engines? > My girlfriend has 1.1ltr 106, would it be a complete waste of time on this > as I'm desperate to tune it as much as possible for her too......... The 1.4 is a waste of time too. SignatureConor "Of all the things I've lost, I miss my mind the most." O.Osbourne. Cars like these are made as cheap and light as possible. They are for town use getting groceries. So apart from a small weedy engine it also will have tiny brakes at both ends, lightweight shopping style shocks and springs etc. The whole vehicle, and this aplies to the majority of front drive small engine cars, is a carefully designed package. Doing anything to the engine that actually gives any real extra power means it is now horrible to drive and has brakes that are too weedy to stop it. However, simply diy porting the head with stock valves does not fall into this catogory...It is unlikely to achieve more than a couple of percent power increase. Its not for nothing that the faster versions have different gear ratios, different diffs and types of diff, as well as different suspension and geometry, oil coolers, bigger radiators, gearboxes and bifgger clutches, stiffer anti roll bars, wider wheels, etc etc... If you really wanted a faster car why didnt you start with a car that was already built like this? Tuning work only really makes any sense at all when you already have the fastest car in the range and want or need more. Otherwise it inevitably means that you are throwing good money after bad and finishing up with a peaky, unreliable noisey, evil handling car that does not stop properly, and is all but impossible to insure! Plus if you are going to tune an engine, start with the biggest! 10 percent more on a 200bhp motor is an extra 20bhp. The same 10% impovement on a 50bhp grocery getter costs the same in parts and gives only 2.5bhp extra! Any single engine tuning mod will not do mutch anyway. Ports, valves, manifolds, carbs/throttle bodies, exhaust systems, cams, and compression ratios all work together. Adding a BIG exhaust does not help hardly at all for example as the cam timing is mild, and not effected much by backpressure. All there things need to be changed and remapped together to see real power gains, and a bigger engined car from the same range will still be more reliable and nicer to drive! And cheaper. Signaturewww.diy-nitrous.fsnet.co.uk/ All about nitrous and how to DIY! www.dynamometer.fsnet.co.uk/ All about Dynamometers www.powerchair-review.fsnet.co.uk/ Powerchairs reviews and Robots www.tuning.wanadoo.co.uk/ All about engine tuning! (for dummies) >> Yep, well guessed! >> [quoted text clipped - 6 lines] >> > The 1.4 is a waste of time too. > If you really wanted a faster car why didnt you start with a car that was > already built like this? Tuning work only really makes any sense at all [quoted text clipped - 7 lines] > more on a 200bhp motor is an extra 20bhp. The same 10% impovement on a > 50bhp grocery getter costs the same in parts and gives only 2.5bhp extra! Eh? Last time I checked 10% of 50 was 5, not 2.5 :-) SignaturePeter The irritating defeatist c.nt. Get Circumcised to e-mail me >> If you really wanted a faster car why didnt you start with a car that was >> already built like this? Tuning work only really makes any sense at all [quoted text clipped - 10 lines] > > Eh? Last time I checked 10% of 50 was 5, not 2.5 :-) Err yes! Its late! Beer... But you know what I mean! Speak for your own experiences in small cars. Mine is lowered 40mm all round, with Koni dampers & springs on the front, handles perfect. OK, brakes aren't the best, but greenstuff pads keep it tight when it needs it. So far I have induction, full thro GPN exhaust with GMC 4-1 manifold, lightened & balanced flywheel, uprated clutch & recent rebuild with full valve regrind, etc....... Next stage is cam, port & polish and a chip. The car is pre-cat and has 100bhp as standard, so by my reckoning I could get 130 ish........ Not bad for a small 106. Still reckon it would have cost less than a semi decent 106GTI with the same sort of power. Insurance isn't that bad either. For all its mods, it sounds good if nothing else! I have been thinking of swapping for 205GTI though.................... > Speak for your own experiences in small cars. > [quoted text clipped - 16 lines] > > For all its mods, it sounds good if nothing else! 130 possibly, rolling road before and after, because you may be surprised how hard it is to get 30bhp extra... Even if it does 130bhp its a small increase really, and almost certainly its worse at the bottom end and less refined to drive. And less economical too? The gti undoubtedly also has better resale, and countless different parts as my first description shows. Making it a better car? If you are doing the head do yourself a favour and get bigger valves stuck in, THEY are the main restriction! And remember a bigger lumpier cam NEEDS higher compression ratio to work. Less trapping volume! > I have been thinking of swapping for 205GTI though.................... Now if you had done all that to the gti it would make more sense! Signaturewww.diy-nitrous.fsnet.co.uk/ All about nitrous and how to DIY! www.dynamometer.fsnet.co.uk/ All about Dynamometers www.powerchair-review.fsnet.co.uk/ Powerchairs reviews and Robots www.tuning.wanadoo.co.uk/ All about engine tuning! (for dummies) Yeah, fair do, it will be awkward to get that extra 30bhp, but thats where all the fun lies isn't it. I've had the XSI some time now, and I've done these mods over the time I've had it, so maybe it is time to upgrade. The XSI was cheap to insure after I was banned (I had MK2 Golf GTI before), whilst still being decent to drive. The thing with internal engine mods is insurance need never know about most stuff. How the hell do they know if the head has been ported and a cam fitted? > Yeah, fair do, it will be awkward to get that extra 30bhp, but thats where > all the fun lies isn't it. [quoted text clipped - 10 lines] > stuff. How the hell do they know if the head has been ported and a cam > fitted? Because a race cam / big valves means it will need a straight through loud exhaust, idle all raspy and agitated, and lumpily! A race engine sounds DIFFERENT massively. If it doesent its not going to go any better... Signaturewww.diy-nitrous.fsnet.co.uk/ All about nitrous and how to DIY! www.dynamometer.fsnet.co.uk/ All about Dynamometers www.powerchair-review.fsnet.co.uk/ Powerchairs reviews and Robots www.tuning.wanadoo.co.uk/ All about engine tuning! (for dummies) > Yeah, fair do, it will be awkward to get that extra 30bhp, but thats where > all the fun lies isn't it. Try nearly impossible. > The thing with internal engine mods is insurance need never know about most > stuff. How the hell do they know if the head has been ported and a cam > fitted? THe popping on overrun. The fact it has an idle as smooth as the rocky mountains. The fact you need to rev it to 3000RPM just so you can set off. SignatureConor "Of all the things I've lost, I miss my mind the most." O.Osbourne. And when was the last time you had the insurance man stood at the side of you checking for popping on overrun? 30% is a big improvement I know, but I doubt its 'unreachable' > And when was the last time you had the insurance man stood at the side of > you checking for popping on overrun? next time you smash into someone, he will be standing next to your car like the grim reaper inspecting every inch of it to get out of helping you. > 30% is a big improvement I know, but I doubt its 'unreachable' > The car is pre-cat and has 100bhp as standard, so by my reckoning I could > get 130 ish........ ROFLMAO.... Yeah if you throw serious money at the motor and by that point it'll be virtually undrivable cos you'd have to rev it to 3000RPM just to set off from standstill. SignatureConor "Of all the things I've lost, I miss my mind the most." O.Osbourne. >Plus if you are going to tune an engine, start with the biggest! 10 percent >more on a 200bhp motor is an extra 20bhp. The same 10% impovement on a >50bhp grocery getter costs the same in parts and gives only 2.5bhp extra! 5bhp extra, surely SignatureCheers Peter > >Plus if you are going to tune an engine, start with the biggest! 10 percent > >more on a 200bhp motor is an extra 20bhp. The same 10% impovement on a [quoted text clipped - 5 lines] > > Peter bloody hell thats 2 ppl that moaned about 5 instead of 2.5....is it that important its worth a post??? stop wasting money on the car...the minute u buy/drive a better car u will instantly regret spending all that money and understand what everyone is going on about. I've already had a better car. I've had 2 mark2 Golf GTis. I got banned, thats why I had to get a 1.4....... I know what people mean, the GTis were 100000000x better than my XSi, but its what I've got, and I like it now. Given the chance I'd rather have a GTi, but the insurance man say no........... > I've already had a better car. I've had 2 mark2 Golf GTis. I got banned, > thats why I had to get a 1.4....... > > I know what people mean, the GTis were 100000000x better than my XSi, but > its what I've got, and I like it now. Given the chance I'd rather have a > GTi, but the insurance man say no........... best thing to do is swap parts from 1.3TU rallye, make it rev to 7.5k, they are great fun to drive. > I've already had a better car. I've had 2 mark2 Golf GTis. I got banned, > thats why I had to get a 1.4....... > > I know what people mean, the GTis were 100000000x better than my XSi, but > its what I've got, and I like it now. Given the chance I'd rather have a > GTi, but the insurance man say no........... Its cheaper than insuring a hotted up car! I hope you are going to tell the insurance because I would hate to think what would happen if you hit some pedestrian and killed them, because they WILL take your car apart. Signaturewww.diy-nitrous.fsnet.co.uk/ All about nitrous and how to DIY! www.dynamometer.fsnet.co.uk/ All about Dynamometers www.powerchair-review.fsnet.co.uk/ Powerchairs reviews and Robots www.tuning.wanadoo.co.uk/ All about engine tuning! (for dummies) > > 5bhp extra, surely > > bloody hell thats 2 ppl that moaned about 5 instead of 2.5....is it > that important its worth a post??? 2 people called Peter as well. We're a picky bunch, us Peters. > stop wasting money on the car...the minute u buy/drive a better car u > will instantly regret spending all that money and understand what > everyone is going on about. Yup, but life's a learning curve, innit? Mistakes maketh the silly twat into a man. Or something. SignaturePeter The irritating defeatist c.nt. Get Circumcised to e-mail me > stop wasting money on the car...the minute u buy/drive a better car u > will instantly regret spending all that money and understand what > everyone is going on about. Not really, its about the journey, not arriving. I could go out and blow £200 in a weekend of booze, crap food and probably some recreational drugs. But I got bored with that before I was 25. I much prefer spending it on my car, and doing as much of the work as possible. This weekend, I plan to take the time to remove the 13 bolts, 4 heat shields and Lambda sensor to remove the CAT on the Celica and fit a replacment decat/downpipe. All have been fitted for the last 15 years, so should be fun. It should also release about 6 BHP, allow the turbo to produce boost from a lower point, continue making it without dropping off upto the redline (instead of dropping off for the last 2000revs), and increase the MPG when I'm not nailing it. But the fun will be working out where it is fastened, and braced, and not busting the radiator when removing it, and not braking too many studs. SignatureCarl Robson "Sorry Sir the meatballs are orf" (The poster formerly known as Skodapilot) http://www.bouncing-czechs.com In article <1115803136.560655.316740@f14g2000cwb.googlegroups.com>, jonreynolds10@hotmail.com says... > stop wasting money on the car...the minute u buy/drive a better car u > will instantly regret spending all that money and understand what > everyone is going on about. Not really, its about the journey, not arriving. I could go out and blow £200 in a weekend of booze, crap food and probably some recreational drugs. But I got bored with that before I was 25. I much prefer spending it on my car, and doing as much of the work as possible. This weekend, I plan to take the time to remove the 13 bolts, 4 heat shields and Lambda sensor to remove the CAT on the Celica and fit a replacment decat/downpipe. All have been fitted for the last 15 years, so should be fun. It should also release about 6 BHP, allow the turbo to produce boost from a lower point, continue making it without dropping off upto the redline (instead of dropping off for the last 2000revs), and increase the MPG when I'm not nailing it. But the fun will be working out where it is fastened, and braced, and not busting the radiator when removing it, and not braking too many studs. SignatureMake sure to spray the f.ck out of the bolts with a good penetrating oil before you start. And give it some time to start working. Fraser Rusted exhaust bolts/clamps, dont you just love them? Drown them in WD40 first, but I found that you still have to look into cutting/drilling some bolts out > Rusted exhaust bolts/clamps, dont you just love them? > > Drown them in WD40 first, but I found that you still have to look into > cutting/drilling some bolts out I have industrial quantities of both spray and liquid plus gas, and also a couple of extra cans for the blow torch (not a good as Oxy but should help). I'm planning to invest in some decent mople grips (don't know how long I've managed without them) for the inevitable snapped stud, and I'm going to make sure the cordless drill is fully charged. Just need to find a decent quality 14mm offset spanner. As long as I get remove/break all the studs, drilling will be a pain in the arse, but there will be enough room. The decat comes will all replacement bolts to cover broken studs, and even spare studs for the Lambda sensor. The bottom end where CAT bolts to the main system should be easy, because it was seperated last weekend when the mongoose went on. I'v been told two hours if it goes to plan, 4 if the studs won't come undone, and about 6 if they all snap. Signature"Sorry Sir, the meatballs are Orf" The poster formerly known as Skodapilot. http://www.bouncing-czechs.com >>Rusted exhaust bolts/clamps, dont you just love them? >> [quoted text clipped - 19 lines] > I'v been told two hours if it goes to plan, 4 if the studs won't come > undone, and about 6 if they all snap. I have found that diesel makes one of the best nut/bolt releasing agents and one of the cheapest. Andy > I have found that diesel makes one of the best nut/bolt releasing agents > and one of the cheapest. If I had a diesel car, I'd grab a can full, use what I need, and then stick the rest in. But I don't think I'll go the petrol station with a 2 litre flask and fill that up. Don't think it would go down too well. SignatureCarl Robson "Sorry Sir the meatballs are orf" (The poster formerly known as Skodapilot) http://www.bouncing-czechs.com > >>Rusted exhaust bolts/clamps, dont you just love them? > >> [quoted text clipped - 24 lines] > > Andy It didn't go to plan. 8.5 hours of sweating and swearing yesterday, and the CAT is still firmly affixed. SignatureCarl Robson "Sorry Sir the meatballs are orf" (The poster formerly known as Skodapilot) http://www.bouncing-czechs.com > In article > <42836919$0$21847$ed2619ec@ptn-nntp-reader02.plus.net>, [quoted text clipped - 53 lines] > yesterday, and > the CAT is still firmly affixed. I take it you did the usual Peugeot backup plan of screaming at it, hitting it with a hammer and wishing you’d never started :D I find it’s usually much easier to do the job the day after you need to have it finished, but thats probably no consolation to you; sorry :? Good luck if you try again. > It didn't go to plan. 8.5 hours of sweating and swearing yesterday, and > the CAT is still firmly affixed. 2 words. Gas axe. Fraser It was bound to be like that, you should have known! Why cant things with cars ever run smoothly? > > stop wasting money on the car...the minute u buy/drive a better car u > > will instantly regret spending all that money and understand what [quoted text clipped - 7 lines] > > I much prefer spending it on my car, and doing as much of the work as > possible. > [quoted text clipped - 6 lines] > from a lower point, continue making it without dropping off upto the > redline (instead of dropping off for the last 2000revs), and increase > the MPG when I'm not nailing it. > > But the fun will be working out where it is fastened, and braced, and > not busting the radiator when removing it, and not braking too many > studs. [quoted text clipped - 3 lines] > (The poster formerly known as Skodapilot) > http://www.bouncing-czechs.com no u got me wrong...i enjoy every aspect of working on th car as well as i do it myself...i just think he should stop wasting money on the poor car...like he said himself...hes had a golf gti...no super car, but i would think more worth spending the money on...thats all i meant. good luck with the cat bolts...(or maybe u done it already?) mine required oxy acet. to make them aware that someone was even considering looking at them with a spanner in their hand...use stainless fasteners to fix the decat, makes life in the future so much easier.... do any manufacturers use stainless fasteners all round as standard? would be nice :-) Signaturewww.diy-nitrous.fsnet.co.uk/ All about nitrous and how to DIY! www.dynamometer.fsnet.co.uk/ All about Dynamometers www.powerchair-review.fsnet.co.uk/ Powerchairs reviews and Robots www.tuning.wanadoo.co.uk/ All about engine tuning! (for dummies) Sleeker GT Phwoar wrote: > In article <1115803136.560655.316740@f14g2000cwb.googlegroups.com>, > jonreynolds10@hotmail.com says... > > stop wasting money on the car...the minute u buy/drive a better car u > > will instantly regret spending all that money and understand what > > everyone is going on about. [quoted text clipped - 3 lines] > I could go out and blow £200 in a weekend of booze, crap food and > probably some recreational drugs. But I got bored with that before I was > 25. > > I much prefer spending it on my car, and doing as much of the work as > possible. > > This weekend, I plan to take the time to remove the 13 bolts, 4 heat > shields and Lambda sensor to remove the CAT on the Celica and fit a > replacment decat/downpipe. All have been fitted for the last 15 years, > so should be fun. > > It should also release about 6 BHP, allow the turbo to produce boost > from a lower point, continue making it without dropping off upto the > redline (instead of dropping off for the last 2000revs), and increase > the MPG when I'm not nailing it. > > But the fun will be working out where it is fastened, and braced, and > not busting the radiator when removing it, and not braking too many > studs. [quoted text clipped - 3 lines] > (The poster formerly known as Skodapilot) > http://www.bouncing-czechs.com no u got me wrong...i enjoy every aspect of working on th car as well as i do it myself...i just think he should stop wasting money on the poor car...like he said himself...hes had a golf gti...no super car, but i would think more worth spending the money on...thats all i meant. good luck with the cat bolts...(or maybe u done it already?) mine required oxy acet. to make them aware that someone was even considering looking at them with a spanner in their hand...use stainless fasteners to fix the decat, makes life in the future so much easier.... do any manufacturers use stainless fasteners all round as standard? would be nice :-) ------------------------- OR if they just greased everything on assembly it would cure the problem Why when I reply to you does the little > not appear??? Signaturewww.diy-nitrous.fsnet.co.uk/ All about nitrous and how to DIY! www.dynamometer.fsnet.co.uk/ All about Dynamometers www.powerchair-review.fsnet.co.uk/ Powerchairs reviews and Robots www.tuning.wanadoo.co.uk/ All about engine tuning! (for dummies) i have no idea my good man. maybe to do with me using google on the web, rather than outlook or similar to read/post?? i dunno (just wanted to add a thumbs up to all your sites...very inspiring) >i have no idea my good man. > > maybe to do with me using google on the web, rather than outlook or > similar to read/post?? i dunno > > (just wanted to add a thumbs up to all your sites...very inspiring) Look, its fixed itself! > >i have no idea my good man. > > [quoted text clipped - 4 lines] > > Look, its fixed itself! must have been a freak of technology!(as opposed to nature!) >>i have no idea my good man. >> [quoted text clipped - 4 lines] > >Look, its fixed itself! Probably because the website URL was omitted in the second post, and OE therefore didn't decide to switch to html mode, a bit. TBH I don't know why OE does this, only that it does. |
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