Question on Spark Plugs!!!

[Phat_Si]

I went to Pep Boyz today and bought the wrong plugs I think, I bought them for a 1.6 Crx Si, when they are going into a 1.6 Zc. First Which car should I get the plugs for??? Also are Bosch Platinum any good??? Thx for all your help!!!

- Phat_Si

[91zc]

88-91 civic/crx plugs or 89 integra plugs will be fine. Since you got the ones for the 1.6 crx si they will work. Here is a part number if you need it: NGK BCPR6E-11 I have used ngk and that is all I will use. I don't know anything about the Bosch plugs.

[Phat_Si]

Does anybody know anything about the Bosch Platinum plugs??? I need help, should I go with NGK or are the Bosch just as good???

- Phat_Si

[5_LiTeR_EaTeR]

WHATEVER YOU DO DON'T GET THE BOSCH PLATINUMS!!! They burn too hot of a plug. You want to go with what the car Manufacturer says to go with.. in this case NGK. Example of why to not to get them : I worked on a car in my garage doing a steering gear box. Got done and it wouldn't start.... Well I decided to look at the plugs and I saw they were bosch Platinum. I know they are bad plugs because of previous experiences. I pulled them put OEM plugs in it and it ran! Bosch doesn't work well with Honda and alot domestic cars. Also they took part in blowing the head gasket in the CRX I bought for $600!! No rust perfect condition!!

[91zc]

Originally posted by 5_LiTeR_EaTeR
WHATEVER YOU DO DON'T GET THE BOSCH PLATINUMS!!! They burn too hot of a plug. You want to go with what the car Manufacturer says to go with.. in this case NGK. Example of why to not to get them : I worked on a car in my garage doing a steering gear box. Got done and it wouldn't start.... Well I decided to look at the plugs and I saw they were bosch Platinum. I know they are bad plugs because of previous experiences. I pulled them put OEM plugs in it and it ran! Bosch doesn't work well with Honda and alot domestic cars. Also they took part in blowing the head gasket in the CRX I bought for $600!! No rust perfect condition!!

Man I never knew bosch was that bad. I have heard that the bosch O2 sensors are crappy but never knew the plugs were. I will keep that in mind for the future. as I said before just go with the NGK plugs.

[Phat_Si]

How much are the NGK plugs for a set at Pep Boyz???

- Phat_Si

[pvang31019]

it's not the plugs, it's the user

[crxlvr]

ive got the bosch platinum +4 and they run alot stronger then my ngk's that i had in there, i felt a noticble power increase right after install, and for the 2 or so years they have been in there, they have had not giving me any problems, plus they are rated at over 100,000mile replacement, so you save money in buying them too.

[5_LiTeR_EaTeR]

You will always feel and increase in power after every tune up. Its because you run on plugs and dont notice a change in performance while it decreases. After you do the plugs it will always feel like you just gained power. Get back to me after you start having problems with your car... Thats if you ever do.

[crxlvr]

well they have been in for about 30k and i havent noticed any problems yet.

[Phat_Si]

I think I'll stick with the ones I got ( Bosch Platinum's). My friends has 'em on his rex also and says thier good!!! Thx crxlvr and everyone else!!!

- Phat_Si

[Phat_Si]

One more thing, It says that there is no need for gapping the new Bosch Platinum plugs, for the 1.6L Si motor. I need to know if they are still ok gappage wise for the 1.6L Zc motor??? Thx all.

- Phat_Si

[fritz_269]

ALWAYS gap your plugs. Pre-gapped my a$$!

Who knows what car they were pre-gapped for? Most of those plugs have dozens of cars they fit into. And who knows if the box has been dropped? Or when the last time the factory machine was calibrated? Heck, I've even gotten the wrong plug in the right box!

Just be gentle with the platinum plugs; you can actually scratch off the platinum coating with the gap checker. This, of course, is why they tell you not to gap them - not because the gap is actually correct, but just so you can't return them later claiming that the platinum came off.

You can gap the platinums just fine, just don't hack or saw at the gap points with the steel tool. And I wouldn't recommend chrome-plated gappers - they'll scratch the platinum even more easily.

[Phat_Si]

ok thx but what engine is the zc out of, (what cars parts fit best)??? Thx

[JasonAccord98LX]

the common trend, which i have gathered from my own experiences as well as by listening to many stories, seems to be that the bosch platinum +4's dont work very well in foriegn cars, especially japanese ones like hondas. there are some technical reasons as to why this is, which include things like the plug runs too hot, not enough spark, the the conductivity of platinum...etc.. Bosch +4's tend to work better on american made cars, while the NGK brand plugs tend to work best on hondas and other foriegn cars--why is why most hondas reccomend a certain type of NGK plugs in the car manual. always use what the manual reccomends for the best performance. most of the time whatever plugs the manual tells you to use, will be the best performing ones. there are a few exceptions, however, some of which involve people using the newer iridium plugs. I personally bought the platinum +4's and put them in my accord. i experienced a very noticeable loss of torque--especially in the low RPM range. i still have these for plugs, which i put back in the box. they have only been run for about 10 minutes if anyone wants to buy them. if you have a honda, i would stay away from the bosch +4's--if you have a chevy or a ford maybe you could try them, but always check the manual. and fritz is absolutely right, even if it says pre-gapped, always check the gap yourself.