AFRs with stock 98-99 cam
Thread Starter
TECH Senior Member
Joined: Nov 2001
Posts: 10,341
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AFRs with stock 98-99 cam Hello all 
I have seen results posted with AFRs and stock LS6 cam but does anyone have results with AFRs and the stock LS1 cam?
I am just curious what the gains would be with AFR's milled to 11.3:1 running a stock 98-99 vette camshaft with tuning.
Would 40RWHP gain be out of the question? (AFR 205's replacing a stock LS1 head)
Any special tuning considerations?
It'd be nice to have an extra ~40 RWHP without having to worry about emissions, spring life or lifter failure.
:beer:
I have seen results posted with AFRs and stock LS6 cam but does anyone have results with AFRs and the stock LS1 cam?
I am just curious what the gains would be with AFR's milled to 11.3:1 running a stock 98-99 vette camshaft with tuning.
Would 40RWHP gain be out of the question? (AFR 205's replacing a stock LS1 head)
Any special tuning considerations?
It'd be nice to have an extra ~40 RWHP without having to worry about emissions, spring life or lifter failure.
:beer:
Chris,
I think that 40 rwhp is within the realm of gains, even with stock cam. Vinci Hi Performance has done some of these swaps (AFRs with stock cam). Personally, I don't think you'd give up one ounce of reliability be swapping in a quiet LS6 cam while you're at it.
But to answer your question, stock cam will work well with the AFR 205. To get the most out of it, I'd still recommend a razor sharp tune (to keep the fuel economy as high as possible and the WOT in the lean range with good timing). Your BSFC should improve with the better efficiency of the heads so why not tune it to extract ever last hp while keeping the exhaust squeaky clean?
I think that 40 rwhp is within the realm of gains, even with stock cam. Vinci Hi Performance has done some of these swaps (AFRs with stock cam). Personally, I don't think you'd give up one ounce of reliability be swapping in a quiet LS6 cam while you're at it.
But to answer your question, stock cam will work well with the AFR 205. To get the most out of it, I'd still recommend a razor sharp tune (to keep the fuel economy as high as possible and the WOT in the lean range with good timing). Your BSFC should improve with the better efficiency of the heads so why not tune it to extract ever last hp while keeping the exhaust squeaky clean?
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
here's the vinci PROJECT AFR 03 corvette. the very first mod was the AFR 205 heads. made 39 rwhp still on the stock tune. the one difference between the 98-99 vs the 03 is the intake 98-99 has the LS1 intake. the 03 has the LS6 intake.
http://www.vincihighperformance.com/...CT%20PAGE.HTML
here's the graph
http://www.vincihighperformance.com/...CT%20PAGE.HTML
here's the graph
TECH Resident
Joined: Jul 2005
Posts: 907
Likes: 1
From: NJ
Originally Posted by CHRISPY
Hello all
It'd be nice to have an extra ~40 RWHP without having to worry about emissions, spring life or lifter failure.
:beer:
It'd be nice to have an extra ~40 RWHP without having to worry about emissions, spring life or lifter failure.
:beer:
Get a cam with it...its all about combination!
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the LS6 cam is usually worth 20+ horse over the stock cam-so I would say you would leave alot on the table and the AFR's wouln't perform as well as they do say on a LS6 due to the lack of lift and duration.
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Chris:
Don't make me drive all the way to the frozen north and bitch slap you.
You know damn well that you can add a Z06 cam, 212/218, 216/220, or 220/224 on XE ramps and pick up good power, not have spring life or lifter issues, and pass emissions easily. Don't drop $2k on heads plus invest in tuning and stay with a stock 99 cam.
Don't make me drive all the way to the frozen north and bitch slap you.
You know damn well that you can add a Z06 cam, 212/218, 216/220, or 220/224 on XE ramps and pick up good power, not have spring life or lifter issues, and pass emissions easily. Don't drop $2k on heads plus invest in tuning and stay with a stock 99 cam.
TECH Fanatic
Joined: Nov 2003
Posts: 1,380
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From: The point of no return...
Originally Posted by ninobrn99
quick question...would the cam that came from an 02 vette be a ls6 or just a regular ls1?
U guys have me so convinced that these AFR's are worth 35RW I'm trying to convince myself into spending 2K for them...I run a 214-222 559-566 115+4 threw shorties and an X pipe and want the best head for the $$$$$...
So far its...
AFR $2,150
TEA S1.5 $1495
Dart I can buy them cheaper than Jegs
Patriot 5.3 $1095
I need at least 30RW from the head that I run
I wanna make 370RW threw shorties and a A4 with this small cam
I would add the LSX/90 if its worth it down the road..
So far its...
AFR $2,150
TEA S1.5 $1495
Dart I can buy them cheaper than Jegs
Patriot 5.3 $1095
I need at least 30RW from the head that I run
I wanna make 370RW threw shorties and a A4 with this small cam
I would add the LSX/90 if its worth it down the road..
Originally Posted by JS
U guys have me so convinced that these AFR's are worth 35RW I'm trying to convince myself into spending 2K for them...I run a 214-222 559-566 115+4 threw shorties and an X pipe and want the best head for the $$$$$...
So far its...
AFR $2,150
TEA S1.5 $1495
Dart I can buy them cheaper than Jegs
Patriot 5.3 $1095
I need at least 30RW from the head that I run
I wanna make 370RW threw shorties and a A4 with this small cam
I would add the LSX/90 if its worth it down the road..
So far its...
AFR $2,150
TEA S1.5 $1495
Dart I can buy them cheaper than Jegs
Patriot 5.3 $1095
I need at least 30RW from the head that I run
I wanna make 370RW threw shorties and a A4 with this small cam
I would add the LSX/90 if its worth it down the road..
JS we have spoke many times and another thought just jumped into my head.
Before while we were talking I was trying to tell you my oponion of the best head for the money but something hit me just now that hasn't hit me in the past. Your goal is only 370 RWHP. The cam choice you made is more/less similar to a Z06 cam. With a LT header and good exhaust I did a A4 2002 Z28 with stock heads, yank 3500 converter, and all boltons. He made 355 RWHP using a Z06 cam only. That was with 10:1 CR. I bet that he could have made 370 by just using a stock Z06 head, and a .040 gasket.
With that being said, I almost want to say the PP,TEA's,AFR's,Darts,PRC's etc will make you achieve your goals.
IMO from talking to you I got the impression you were after HP per dollar.
If so I personially believe AFR is the worst choice based on your goals.
Go buy a set of Darts or TEA's for 1300 bucks vs 2200 for the AFR's. Then go into the for sale section and grab yourself a 90/90 combo for 1000 bucks. Now your spending almost the exact same amount but are geting more value out of your money. On the back side you can sell you stock LS6 intake and TB and make 400 or so back which would acturally make the heads, 90mm intake, and 90mm TB cheeper then just the AFR's.
Now if your goals were higher and money wasn't a huge factor AFR would be a strong choice.
I would bet 1000 bucks a set of TEA 1.5's and a fast 90/90 combo would make more power the a set of AFR's with a LS6 intake and TB.
