Boost Question
08-15-2002, 02:31 AM
#1
Three Wheelin'
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Boost Question
I hear about changing the banjo bolt? along with a few other things. I'm new into this. What can you do to increase boost? In first and second gear I generally see 12-15 lbs and in third fourth and fifth 20 lbs on my vdo gauge. Is this normal? My car is chipped with a man boost controller and a 3 bar regulator. Thanks in advance
08-15-2002, 03:11 AM
#3
Race Director
With the mods you have, I wouldn't set max-boost to be more than 15psi. That's really about the limit of your configuration without further upgrades for safety (larger injectors, custom dyno/chip-tuning, etc.). The only way to get identical boost in all gears is to use an electronic boost-controller.
However in cases of extreme HP levels, like Russ, Rage2, A.Coleman, etc. who are pushing 400rwhp, then having lower boost in 1st/2nd gears can actually be helpful in preventing excessive wheelspin on launches. On Bob Norwood's 1000bhp+ twin-turbo Testarossa, they actually had to dial in additional turbo-lag to get the thing to behave and be controllable...
However in cases of extreme HP levels, like Russ, Rage2, A.Coleman, etc. who are pushing 400rwhp, then having lower boost in 1st/2nd gears can actually be helpful in preventing excessive wheelspin on launches. On Bob Norwood's 1000bhp+ twin-turbo Testarossa, they actually had to dial in additional turbo-lag to get the thing to behave and be controllable...
08-16-2002, 01:48 AM
#4
Three Wheelin'
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The ol k26 is startin to blow some oil. Any recommendations? A 27 with a #6 housing? What would you all recommend. I wanna go through the motor this winter once the stang is completed.
08-16-2002, 04:22 AM
#5
Race Director
There is really no 'one' best answer. It depends upon your goals, short-term as well as long-term, and your budget as well. Some things can be upgraded incrementally, others is either/or now or never... So what do you want?
08-18-2002, 03:59 PM
#7
Three Wheelin'
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I'm not sure how long I'm gonna keep the car but we mostly street race around here. I usually don't have too many problems with the ls1 cars but it's starting to fall off a little on power. I own a auto repair business so getting the work done isn't a problem. but I'd love 325+ at the wheels. I know I need a mass air kit. But right now the turbo is ****ting (blowing oil) so I need to come up with the best plan here. As I said this winter I will more than likely pull the motor and freshen it up or go ahead and do it up. Bore new pistons etc. Thanks <img src="graemlins/burnout.gif" border="0" alt="[burnout]" />