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Old 05-11-2003, 02:07 AM   #1
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Default Boost Solenoid Bypass

Jeff'* bypass trick works like a hot damn.
No more drop in boost during full throttle acceleration runs.
So easy and the hose only cost .50 cents

No codes set either.
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Old 05-11-2003, 12:37 PM   #2
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Way cool. I've got my new pulley on now.....I'm hitting about 12psi regularly (my torque converter doesn't like it).....but I'm not seeing the dropout. I'm assuming my Jet chip is preventing the overboost protection.
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Old 05-11-2003, 01:17 PM   #3
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i could get almost 16 psi with my 2" pulley if i flashed it, but as soon as the pcm picked it up, i started dumping it. i hope this little trick helps sc members on here. now during a 1/4 mile run , i dont lose boost anymore, i just upped my tb to a 95 tb with a 70mm throttle plate. that is up from a stock 92 which is 58mm. my mini afc failed before i ever got the tb installed, i called zzp and they said they would get a replacement right out to me. i went to 3 heat ranges cooler in plugs and closed the gap to.052" the new TB has an aprox 48% more intake area. with the 112 race fuel, cooler plugs, and more air with a richer mixture, i really think that the lower 14'* and poss. high 13'* is in the very near future. the time slip on my car domain page is with 112 oct race fuel and standard heat range plugs. i still had 19* of knock retard but had to hit the brakes hard trying not to break out. i still broke out but ran a 15.59 and was on the brakes hard from 1000' on. had a 9.7 1/8 mile time that was way close a 15.1sec. 1/4 mile time and still with 19* of knock retard.that is still losing aprox.40-50 hp with the knock retard.
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Old 05-11-2003, 05:07 PM   #4
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Jeffery, how did you get the 95 TB to work properly?
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Old 05-11-2003, 05:54 PM   #5
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have a 95 sc on my car. i got a zz performance mini afc calibrator to calibrate the MAF sensor. it went bad friday night and set a ses code, i called zzp and they are sending me out another one asap. the mini afc can calibrate the MAF signal to compensate for the amount of air that they 70mm tb delivers. you can set the mini afc from 10% of the original MAF reading up to 255% of the MAF reading. and all this with 1% increments. very adjustable. and at a frction of the price of a custom MAF sensor. they sell them for 99.99.
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Old 05-11-2003, 09:09 PM   #6
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Quote:
Originally Posted by jeffrey10x2
i could get almost 16 psi with my 2" pulley if i flashed it, but as soon as the pcm picked it up, i started dumping it. i hope this little trick helps sc members on here. now during a 1/4 mile run , i dont lose boost anymore, i just upped my tb to a 95 tb with a 70mm throttle plate. that is up from a stock 92 which is 58mm. my mini afc failed before i ever got the tb installed, i called zzp and they said they would get a replacement right out to me. i went to 3 heat ranges cooler in plugs and closed the gap to.052" the new TB has an aprox 48% more intake area. with the 112 race fuel, cooler plugs, and more air with a richer mixture, i really think that the lower 14'* and poss. high 13'* is in the very near future. the time slip on my car domain page is with 112 oct race fuel and standard heat range plugs. i still had 19* of knock retard but had to hit the brakes hard trying not to break out. i still broke out but ran a 15.59 and was on the brakes hard from 1000' on. had a 9.7 1/8 mile time that was way close a 15.1sec. 1/4 mile time and still with 19* of knock retard.that is still losing aprox.40-50 hp with the knock retard.

Hey Jeff...what'* this over boost trick I am reading about...Let me in on it...
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Old 05-11-2003, 09:12 PM   #7
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if anyone wants pics , just email me and ill send them.
gotta love booooooooost
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Old 05-11-2003, 10:30 PM   #8
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hey will, what kind of signs do you have that tells you the torque converter doesnt like the pulley? Is it a ticking or a rapping when you pin the pedal? I get that often since I put the pulley on
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Old 05-11-2003, 10:37 PM   #9
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when you add more boost, you gain more low end torque. when you raise the torque, the converter has a higher stall speed. sometimes, they have a tendency to shutter a little bit.mine did it too till the pcm learned the new power that the motor had .
i may be wrong , but thats what happened to mine. now i can take it to almost 2800 at the line before i push through the brakes
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Old 05-11-2003, 10:43 PM   #10
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All that, and my TC was slipping a bit before I ever did the pulley. My tranny is coming out before the year is over.
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