Smog Test
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Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Smog Test
Another excellent tuning job by "Kevin91Z"
Last edited by Dyno Don; Jul 9, 2009 at 10:17 AM.
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Re: Smog Test
Nice. Big heads, big TPI, big cam, big exhaust and it passed with flying colors.
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From: Carson, CA
Car: '88 GTA, 90 Formula
Engine: 5.7 TPI, fed growth hormones
Transmission: 700r4 4u2?
Axle/Gears: 9bolt
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Joined: Oct 2006
Posts: 115
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From: Fulshear, TX
Car: 89 IROC Z-28
Engine: 5.7
Transmission: A4
Axle/Gears: 3.42
Re: Smog Test
That Kevin91Z is one amazing tuner!! He impresses me with his abilities at every dyno session as well as on smog check day.
So now we have to look at just a LITTLE more cam and another 1/2 point of compression for that little 355!!!
So now we have to look at just a LITTLE more cam and another 1/2 point of compression for that little 355!!!
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Smog Test
Geez, that's cleaner than my car was!
I dont deserve all the credit though. Don helped.
Also, he just finished rebuilding my T56 and its now smooth as glass and shifts like a knife thru butter.
New cam already, Pat? Now we know why you had Don install it in his car first. He can work out the bugs and find out the power, so you know what to upgrade and replace before it goes in your car.
I'd recommend a 224/230 from Comp using the XFI ramps and 113 LSA. That's halfway between the XFI268 and XFI280.
I dont deserve all the credit though. Don helped.
Also, he just finished rebuilding my T56 and its now smooth as glass and shifts like a knife thru butter. New cam already, Pat? Now we know why you had Don install it in his car first. He can work out the bugs and find out the power, so you know what to upgrade and replace before it goes in your car.
I'd recommend a 224/230 from Comp using the XFI ramps and 113 LSA. That's halfway between the XFI268 and XFI280. Member
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Joined: Oct 2006
Posts: 115
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From: Fulshear, TX
Car: 89 IROC Z-28
Engine: 5.7
Transmission: A4
Axle/Gears: 3.42
Re: Smog Test
But VINCENT is gonna have a BIG cam, can't i have one too??????
They say you can tune ANYTHING!
thanks Kevin, you da man!
They say you can tune ANYTHING!
thanks Kevin, you da man!
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Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Smog Test
Sure, Vince is gonna use the XFI280, you can too if you want.
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From: meridian, idaho
Car: 92 1500p\u 2wd
Engine: 91 z28 tpi 355
Transmission: 91 700r4
Re: Smog Test
all the cams you guys are talkin about...they will pass the sniffer test? also how do these cams run with a LTR setup...will the cams still have good lowend in a 355?
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Smog Test
You tell me if it will still have good low end:
The red line is with AS&M large tube runners. The blue line is with the SLP siamesed runners.
Just about any reasonable roller cam will pass the sniffer test with custom chip tuning.
The red line is with AS&M large tube runners. The blue line is with the SLP siamesed runners.
Just about any reasonable roller cam will pass the sniffer test with custom chip tuning.
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