how many psi safe?

[burntricer]

Hey,

im not happy with my best track time. I have a Stock redtop Running a GT2560r at 7psi

my time was [email protected] @7psi

it has the following done to the motor.

Redtop s13MLS HGARP studsAdjustable FPRGT2560rHUGE greddy FMICStock Recirc valveNarrowband AFR gauge.

what psi can i run safely? i know my turbo can handle it, but what can my stock fuel maps set....(a stock integra GSR with 300k on it beat me...)

[luv2spedup]

i think 10psi should be safe with stock fuel system, but you did not do good at the track stock SR's run high 13's to mid 14's at about 8psi depending on the driving skills of the individuals.(lsd and tire's make a huge difference too)

[CSUPUEBLOTIM]

Ya post your time slip times for us. You need to control what you got first before you crank it up any.

[IanS]

I'm guessing you've got deeper issues than just low boost, sounds like your not making the power you should be.

[S14toRPS13]

My nephew ran as high as 16 psi on a S13 redtop, S15 turbo, Greddy fmic, and 255lph fuel pump. It's been fine for years. DD it at 14 psi. I say to be safe, don't push it past 12 psi though.

There goes another Honda guy who can brag that he beat a SR. What were your 60 ft times? With that trap speed you should be capable of 14's. My first run only netted me 14.106 @ 104 mph with 12-13 psi. I've done better since, 13.495 @ 105 mph with 14-15 psi. Drop your tire pressure down to about 20-25 psi and ease off the clutch at the starting line. I'm not the best, but it worked for me.

[burntricer]

I'm guessing you've got deeper issues than just low boost, sounds like your not making the power you should be.

thats my thoughts too man. but i cant find any problems...no codes, no boost leaks, good compression, good timing, ect. if you can think of anything let me know man lol

heres my timeslip

Reaction - 0.8660 foot - 2.49 (consistent around there)1/8th ET - 10.181/8th MPH - 73.151/4 ET - 15.461/4 MPH - 94.30

Thats at 7psi. i want my 13's!!

[burntricer]

ian, get on aim if you can?

[S14toRPS13]

Reaction - 0.8660 foot - 2.49 (consistent around there)1/8th ET - 10.181/8th MPH - 73.151/4 ET - 15.461/4 MPH - 94.30

Thats at 7psi. i want my 13's!!

I feel like such a sh*tty driver when people boosting 7 psi hit 13's and it took me 14-15 psi to dip into the 13's. It's just about getting that launch down and consistent. 240's aren't naturally good for drag racing. Don't feel too bad, my buddy hit 16.0 with his 350Z.

[burntricer]

well i got the car timed again, and its dead on. i think the reason im only running so crappy is the lack of boost, im only running 7 psi

[Emperor_Tha]

I did 13.5 at 104 on safc tune t25 @ 7 psi

I took me about 3 times going to the track to get into the 14sthen my 5th I hit the 13s

It takes a lot of practice. Especailly at launch. maybe if u launch higher at let's say 4k or 4.5k on LSD u can cut your 60 ft down to 2.1 or 2.0 u can probably hit 13.9-14.2