car falls on face at full boost?

[shally2186]

alright i could try the ACDELCO but are u sure first...i had a nissan master tech tell me to run platinums and the guy who builds RB's and SR's told me to stick w the iridiums..so far i KNOW that the iridiums work and work well..im sorry for doubt'n u but i dont wanna waste any more money and time on plugs that i will just have to replace in a day..my car is a RB20DET running on 12lbs of boost,444cc injectors,RB25 turbo,255 FP,fpr set @ 40 at idle w vacuum..CAN NOT run on any normal copper plug...lemme kno what u think....thank you
Modified by shally2186 at 8:09 AM 3/4/2008

[rb25drag]

Well From my experience, my car ran like a flintstone mobile on the Iridiums, Im no Rb expert, but I just now how good mine run with these plugs, I have had them in there for a few months now. Those Iriduims were fouling out within a 2 day period with me, These Ac's have not fouled yet. If you have a plug and your happy with it then stick to it until you need a new set so your not wasting money, But I wasted a few hundred dollars on NGK's Crap and I won't do that again.

[shally2186]

lol nice..what all upgrades to u have done to ur 25?my buddy seth has a RB25 in his hatch and is running the plugs that i tried last night..good for his RB but bad for mine..

[rb25drag]

Well I have had more trouble then most on my 25 setup, But its internally built, Stock crank, Forged eagle rods, Weisco Pistons, ACL race bearings, ARP head studs, Cometic HG, HKS timing belt, Bored .030 over, Decked, Balanced. Stock turbo, Stock ECU, Stock INjectors, stock intake, z32 MAFs, SafcII, Gizzmo launch control, and will be soon switched from gas to Propane!!

[shally2186]

nice..good luck w the propane!!well mine runs super rich than most..it fouls normal plugs like nothing...i just wanna get wats best for my car cause im trding it soon and i want it to be right

[rb25drag]

Well That was one of my problems with it running super rich, Esp at idle, Try this. While its running, un-plug the coolant temp sensor and see how much that leans it out. When Im running at the track, Right before I do my burnout I pull the plug, It takes my A/F readings from 11.5 idle to 13.8 allows me to do my burnout and stage without the car dying!! Mine is sending the wrong readings to the ECU thats why its running so rich, But im going to elliminate that problem with the Propane. I like it simple.

Use too it would Die when I came out of the burnout box, It was loading up with fuel, After changing the plugs and re-gapping them smaller .028 it didn't die anymore but still runs rich, So I un-plugged that sensor and it runs better.

[shally2186]

alright..i was just worried about it foul'N out all the plugs that werent iridium

[Kisorperformance]

I am running the bcpr6es but I never understood what the "-11" meant. But I am gonna regap them to the correct setting of .031 inches and I am waiting on my vac/boost gauge and another new walbro pump, this time to replace my bosch 040 (a downgrade) that is probably gone out. Builds pressure, but fuel flow is weeeeaaaaakkkk...

--TJ

Stock gap was 1.1mm..... you really aren't "supposed" to regap iridiums or double platinums... by bending the strap you can crack off the special metal.... but either way they were supposed to come out of the box at 1.1mm