Highest HP car to pass CA emissions (legit)
05-05-2010, 06:23 PM
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Highest HP car to pass CA emissions (legit) Whats the highest HP NA car to pass CA emissions? I am thinking about changing my setup but just trying to figure out if its even worth trying a high HP NA setup that can pass emissions.
With racegas getting less and less accepted in CA I know for sure I am going to a pump gas setup but I just need to know whether or not its worth trying to pass or just deal with it when I get pulled over?
With racegas getting less and less accepted in CA I know for sure I am going to a pump gas setup but I just need to know whether or not its worth trying to pass or just deal with it when I get pulled over?
05-05-2010, 06:30 PM
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My 04 Silverado SS passed with ease and made 522 AWHP ...Basically was a Radix'd LQ9 with a small cam and ported 317 heads etc.I had LT headers with hf cats ...My tuner tweaked it a little and I ran a 195* tstat
05-05-2010, 06:53 PM
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Race gas is not legal for street use in CA. So you wouldnt pass smog. And the Fbody v8 is illegal by sound (db lvl ) as well - so Im not sure what you are asking , as - just about everything is illegal in CA. Even the things that are CARB legal arent street legal...
05-05-2010, 07:09 PM
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I dont think its so much the number as it is the set-up. You could do a TT set-up off E85 and get it qualified as a clean fuel conversion 
E85 puts down so MEAN numbers in a FI set-up.
Also with a turbo set-up the boost controller and HP tuners can be a VERY useful thing when smog time rolls around. Turn down the boost to VERY little and adjust the tune. Then after you pass, just turn up the whick again
E85 puts down so MEAN numbers in a FI set-up. Also with a turbo set-up the boost controller and HP tuners can be a VERY useful thing when smog time rolls around. Turn down the boost to VERY little and adjust the tune. Then after you pass, just turn up the whick again
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05-05-2010, 11:24 PM
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This is more along the lines of what I was thinking. I am thinking a big cube, pump gas motor w/ all the smog items in place. How much power can be made?
05-06-2010, 01:39 PM
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I dont think its so much the number as it is the set-up. You could do a TT set-up off E85 and get it qualified as a clean fuel conversion E85 puts down so MEAN numbers in a FI set-up.
Also with a turbo set-up the boost controller and HP tuners can be a VERY useful thing when smog time rolls around. Turn down the boost to VERY little and adjust the tune. Then after you pass, just turn up the whick again
E85 puts down so MEAN numbers in a FI set-up. Also with a turbo set-up the boost controller and HP tuners can be a VERY useful thing when smog time rolls around. Turn down the boost to VERY little and adjust the tune. Then after you pass, just turn up the whick again
05-06-2010, 02:11 PM
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A smog legal, NA build (i.e. shorty headers, LS6 heads, 224 cam, etc) is still going to net you under 400 rwhp. But if you bolted on some 317 heads, LS6 cam, shorty headers, and a P1SC or D1SC, you could make over 500rwhp on a moderate amount of boost and still pass smog.
05-06-2010, 02:52 PM
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So basically I'm not going to make 500rwhp through stock manifolds and cats?
I guess if I was going to go that route it would be financially smarter to use a LS7 longblock with stock emissions, rather than try and build an emissions friendly stroker (reinvent the wheel)?
If I am not going to reach my goal I would rather just build an all out NA motor again, or just freshen up the motor that is in the car w/ pump gas pistons.
I am doing the forced induction thing in my Mustang and it is turning out to be a headache. I'd rather keep my Fbody NA. I have always talked about doing a vette w/ a big single (100mm+) one day but this mustang build has got me rethinking that one.
I guess if I was going to go that route it would be financially smarter to use a LS7 longblock with stock emissions, rather than try and build an emissions friendly stroker (reinvent the wheel)?
If I am not going to reach my goal I would rather just build an all out NA motor again, or just freshen up the motor that is in the car w/ pump gas pistons.
I am doing the forced induction thing in my Mustang and it is turning out to be a headache. I'd rather keep my Fbody NA. I have always talked about doing a vette w/ a big single (100mm+) one day but this mustang build has got me rethinking that one.
05-06-2010, 07:36 PM
#16
So basically I'm not going to make 500rwhp through stock manifolds and cats?
I guess if I was going to go that route it would be financially smarter to use a LS7 longblock with stock emissions, rather than try and build an emissions friendly stroker (reinvent the wheel)?
If I am not going to reach my goal I would rather just build an all out NA motor again, or just freshen up the motor that is in the car w/ pump gas pistons.
I am doing the forced induction thing in my Mustang and it is turning out to be a headache. I'd rather keep my Fbody NA. I have always talked about doing a vette w/ a big single (100mm+) one day but this mustang build has got me rethinking that one.
I guess if I was going to go that route it would be financially smarter to use a LS7 longblock with stock emissions, rather than try and build an emissions friendly stroker (reinvent the wheel)?
If I am not going to reach my goal I would rather just build an all out NA motor again, or just freshen up the motor that is in the car w/ pump gas pistons.
I am doing the forced induction thing in my Mustang and it is turning out to be a headache. I'd rather keep my Fbody NA. I have always talked about doing a vette w/ a big single (100mm+) one day but this mustang build has got me rethinking that one.
