this boost ok w/ water injection and 11.3:1 afr? - SRT Forums

N20_srt · 10-10-2005, 11:30 PM

have injectors, fmic, safc2, full exhaust, agp wastegate,additional mods in my car mods. afr's 11.3 across the board and I am running 24 spike to 21 then 14 psi at redline. No boost leaks except throttle body. Is this boost good or do you think I might be going into long term knock mode? How can I tell also when I am in long term knock mode?

19 psi · 10-10-2005, 11:38 PM

knock mode???????????????????????????????????????????

my car seems to be doing fine with 24-25 psi spike but I would'nt be doing it if i did'nt have W/I. and I cant floor it, in higher gears, below..2500 RPM's, or else knock city

sour kraut · 10-11-2005, 12:20 AM

Get a datalogger or borrow one from a friend and log your timing. This should tell you what you want to know.

SRTFIREMAN · 10-11-2005, 08:06 AM

is that 24 spike on stock turbo?

whitewid0w · 10-11-2005, 09:17 AM

You got 91 octane or good 93? If your 91 I would turn it down for sure, im sure you have some good detonation going on there.

N20_srt · 10-11-2005, 04:11 PM

sorry I forgot to mention, yes it is on stock turbo until my new one gets in. And no I dont want water injection. My friend just ran the fastest time at the track on the stock turbo no nitrous and he is running something like a 25psi spike holding 19 or so to redline. and all he has over me is a throttle body and of course slicks. he ran a 12.0. The main question I needed to know was what is this long term knock mode I hear about and what are some of the signs? oh yea and yes I use 93 octane.

mario03srt · 10-11-2005, 06:52 PM

The SRT has both a short/long term ecu timing memories.

Extended driving without significant knock activity will return the long term ecu timing for better performance. This may be what you are refering too. Banging it at the track does not qualify as insignificant

Be sure to use pure 100+ octane and bear down

mario03srt · 10-11-2005, 06:53 PM

Quote: Originally Posted by N20_srt

have injectors, fmic, safc2, full exhaust, agp wastegate,additional mods in my car mods. afr's 11.3 across the board and I am running 24 spike to 21 then 14 psi at redline. No boost leaks except throttle body. Is this boost good or do you think I might be going into long term knock mode? How can I tell also when I am in long term knock mode?

PS

Lean that pig out!