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Car Forum / Saab Cars / April 2006Which Bosch Platinum Plus 4 Should Be Used In A '89 900NT?
I'd like to try these plugs out because I've heard more pro than con about using them in non-DI Saabs. Are the Plus-4 #4418 plugs the ones to get or is there a better heat range? Thanks for any info, Mark > I'd like to try these plugs out because I've heard more pro than con > about using them in non-DI Saabs. Are the Plus-4 #4418 plugs the ones > to get or is there a better heat range? > Thanks for any info, > Mark Personally, I wouldn't. Classic 900s like NGK plugs. Fact! Use BP7ES if you're a hard driver in a normally aspirated car, BP6ES otherwise. You could try the cooler BCP7ES plugs, but they're more of benefit for the turbo cars. See: <http://www.saabphotos.com/gallery/Orca_Misc/saab_ngk1> <http://www.saabphotos.com/gallery/Orca_Misc/saab_ngk2> Paul 1989 900 Turbo S http://saab.go.dyndns.org/ > Personally, I wouldn't. Classic 900s like NGK plugs. Fact! > Use BP7ES if you're a hard driver in a normally aspirated car, BP6ES > otherwise. You could try the cooler BCP7ES plugs, but they're more of > benefit for the turbo cars. Ditto.  SignatureGrunff >> Personally, I wouldn't. Classic 900s like NGK plugs. Fact! >> Use BP7ES if you're a hard driver in a normally aspirated car, BP6ES >> otherwise. You could try the cooler BCP7ES plugs, but they're more of >> benefit for the turbo cars. > > Ditto. +2. Platinum plugs are of no benefit in olders SAAB and can actually cause running problems. For the price of the fancy bosch plugs you can buy 2 or 3 sets of the right ones. Signature-Fred W > I'd like to try these plugs out because I've heard more pro than con > about using them in non-DI Saabs. Where? > Are the Plus-4 #4418 plugs the ones > to get or is there a better heat range? Stick with the NGK. If Bosch plugs were better, with all the other Bosch electricals in your car, Saab would have used them. Marketing gimmicks aside, there's really no point. Stick with stock. "Where?" I've done Google searches of this newsgroup & the Saabnet archives. > "Where?" > > I've done Google searches of this newsgroup & the Saabnet archives. Hm. That's odd; I've never seen anyone on this group who has had success with Bosch plugs. >>"Where?" >> >>I've done Google searches of this newsgroup & the Saabnet archives. > > Hm. That's odd; I've never seen anyone on this group who has had > success with Bosch plugs. Hahaha, right after I replaced the plugs in my '94 NG900SE V6 with Bosch Platinum +4's (I didn't know any better), my engine exploded!!! Not literally, but my timing belt snapped. Coincidence? :D -Chris '94 9000CSET '95 NG900SET Convertible '99 9-3SET '94 NG900SE V6 *RIP* '87 9000S *RIP* >>> "Where?" >>> [quoted text clipped - 6 lines] > Platinum +4's (I didn't know any better), my engine exploded!!! Not > literally, but my timing belt snapped. Coincidence? :D Yes. Obviously so. Signature-Fred W One that I came across was Ken Washington (hasn't posted to this group since 2003) who used Bosch plugs for many miles and was very satisfied with them however I've read many other posts where Bosch Platinum+ plugs are not recommended where DI Cassette is used because of the engine monitoring system is designed for NGK plugs and they also may be more prone to fouling > > "Where?" > > > > I've done Google searches of this newsgroup & the Saabnet archives. > > Hm. That's odd; I've never seen anyone on this group who has had > success with Bosch plugs. Try live these guys: http://www.drivewire.com/ The carry all the NGK plugs. Jeremy > I'd like to try these plugs out because I've heard more pro than con > about using them in non-DI Saabs. Are the Plus-4 #4418 plugs the ones > to get or is there a better heat range? > Thanks for any info, > Mark > I'd like to try these plugs out because I've heard more pro than con > about using them in non-DI Saabs. Are the Plus-4 #4418 plugs the ones > to get or is there a better heat range? > Thanks for any info, > Mark I've tried Bosch Platinums in a few different cars and never had much luck with them. I always use plain old cheap NGKs, they just work. I have a friend who tweeks his cars and has found that in souped up vehicles with heavier duty ignition systems, the Bosch plugs can handle power better. He has had Japanese (a Nissan/Datsun) and American (Mustang) that were both done up with super/turbo-chargers, hd coils and distributers and MSD systems. He has tried various plugs in them and found that the other brands tend fail quicker. But that is in more towards the gear head scene than the every day driver. My own little comment, Jeremy >> I'd like to try these plugs out because I've heard more pro than con >> about using them in non-DI Saabs. Are the Plus-4 #4418 plugs the ones [quoted text clipped - 4 lines] > I've tried Bosch Platinums in a few different cars and never had much luck > with them. I always use plain old cheap NGKs, they just work. >I have a friend who tweeks his cars and has found that in souped up vehicles >with heavier duty ignition systems, the Bosch plugs can handle power better. [quoted text clipped - 4 lines] > >But that is in more towards the gear head scene than the every day driver. Different cars, different plugs. There's plenty of evidence from Saab users that the stock NGK work best. I've seen some cars that would absolutely *eat*certain plugs. Champions would die in a half hour in a '68 alfa (we were kids, we didn't know better until we tried). No idea why they died, but I saw it happen repeatedly. Autolite's worked in the same engine without complaint. Interestingly, what you were supposed to use in this engine was a copper Bosch plug with 4 electrodes on the sides (sound familiar?). Unfortunately you could only get them from Alfa dealers and they were close to $50 in today's dollars. Bosch brought the same idea back with the platinum a few years ago and started selling it as something revolutionary :-) |
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