strange idle issues

[IanS]

Ive searched and searched, Ive got a redtop SR and its been running great all summer, but earlyer this week I decided to up the boost from 7 to 11, ive got a walbro and Greddy FMIC, the car ran great, but I figured for the new boost I should get some new spark plugs, since I didnt gap the NGKs I got originaly when I did the swap, so I bought the same plugs and gapped them to .028, and when I put them in now it has a nasty Idle, it still pulls hard and drives fine, so I checked the plugs and the coils everythings good, and I dont know why new plugs would do this, any help would be great, Im out of Ideas.s

thanksIan

[180fan]

maybe the gap is too small? when you gap NGK's there is a limit as to how much you can change the gap. It's on their faq's as the number is coming to me right now but check it out.

[sen-pai]

gap on turbo cars should usually be .032 - .038

[IanS]

heres a dumb questing, whats the differant between the BKR6s and the BKR7s, I know one is a step colder, but which one, and what advantages does a colder plug have.

[D1 guy]

gap your spark plugs to .0028 no questions asked. The sr runs great at 28

[IanS]

I had them at .028 and it idled like garbage, then I uped it to .032 and it idles fine, I still dont understand the heat range thing.

[CotBU]

BKR6's & BKR7's 6 & 7 are the heat ranges BKR7 is the colder plug