Spray plus boost
May 21, 2012 | 05:10 PM
#21
Thread Starter
On The Tree
Joined: Jul 2010
Posts: 154
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From: Colorado Springs, Colorado
Race gas would deff help!
keep the AFRs around 11.0-11.2 to be safe and pull timing and work it back in slowly.
I had a single Walbro 255 and on 9# and the 50 shot it was loosing pressure from 4500+
i know its not apples to apples.. but i had a 60mm rear mount turbo and the 50 shot on 6psi added 64hp and 90ftlb torque at the wheels at 10.8 AFR. bone stock LQ4.
keep the AFRs around 11.0-11.2 to be safe and pull timing and work it back in slowly.
I had a single Walbro 255 and on 9# and the 50 shot it was loosing pressure from 4500+
i know its not apples to apples.. but i had a 60mm rear mount turbo and the 50 shot on 6psi added 64hp and 90ftlb torque at the wheels at 10.8 AFR. bone stock LQ4.
May 22, 2012 | 12:22 PM
#23
I would pull about 6* out of your boost side of the spark table to start out with on the 50 shot. That way you know its safe and can add it back slowly.. Once you know thats safe you can do another tune for 75 shot and 100 shot, pull about 5* back every time and work it back in.
Or you could do a standalong and run Meth or E85, or Race gas.
Or you could do a standalong and run Meth or E85, or Race gas.
May 22, 2012 | 01:27 PM
#24
Thread Starter
On The Tree
Joined: Jul 2010
Posts: 154
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From: Colorado Springs, Colorado
It seems like from you guys advice that the standalone fuel system would be the safest route, especially since we have only 91 octane pump gas in Colorado. With the standalone system I could fill it with race fuel when I get the N20 refilled.
May 22, 2012 | 01:40 PM
#25
Now your thinking!!
If you could figure out the right fuel, you could just about spray on your current tune.. but back the timing down and work it back in slowly and you will figure it out.
If you could figure out the right fuel, you could just about spray on your current tune.. but back the timing down and work it back in slowly and you will figure it out.
May 22, 2012 | 04:32 PM
#26
Thread Starter
On The Tree
Joined: Jul 2010
Posts: 154
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From: Colorado Springs, Colorado
Yeah, I'll be tuning on the dyno first time I spray on it either way, we'll pull some timing first and see where we go from there. My tuner is really big on making power safely so I'm not worried there. Thanks for the help, I believe you have helped me make up my mind.
Jun 25, 2012 | 10:38 PM
#27
Im thinking of doing the same... mines a 4.8 with a radix at 12~13psi and meth. the meth isnt doing much with the IATs so hopefully a dry shot will help. All i want from this 4.8 are constant 7.9x in the 1/8!
Whoever blows their engine first, post up!
Whoever blows their engine first, post up!
