Generation III Internal Engine 1997-2006 LS1 | LS6
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View Poll Results: AFR or TEA
Spend the extra money on the better head
97
68.31%
Save a bit of money and put it toward another mod or tuning
45
31.69%
Voters: 142. You may not vote on this poll

AFR vs TEA

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Old 08-09-2005, 03:41 PM
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Cylinder Displacement = ((3.14159*3.898^2)/4) * 3.622

60cc Chamber Vol = 3.6003745

Head Gasket Vol = ((3.14159*3.898^2)/4) * .040

Deck Height Vol = ((3.14159*3.898^2)/4) * .007

Flat top pistons = 0

Figue out what each of those equal...they will be in the proper units of in^3.

Now, SCR=

(Cyl Disp) + (Chamber Vol) + (Gasket Vol) - (Deck Height)

divided by

(Chamber Vol) + (Gasket Vol) - (Deck Height)

See what you get...no calc handy...
Old 08-10-2005, 08:27 AM
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Originally Posted by JZ'sTA
????? i AM STILL NOT SEEING THE DAMN DIFFERENCE.
Wit the 11.82 I listed it was a 3.898 bore
3.622 sroke
.040 gasket
-.007 deck height
0 for flat top pistons
59cc for the heads.
Again I dont see where the difference is at?
thats what I get also.
Old 08-10-2005, 09:13 AM
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That is probably right since the gaskets are .020 thinner than I would have used and the chambers are almost 2ccs smaller...
Old 08-17-2005, 04:55 AM
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just have tea port ur afr 's thats what i done and i'm pushing 500 at the wheels with a t-rex and 402 slp stroker with afr heads stage 3 from tea
have your cake and eat it to!!! lol,,but u need comp cams best spring
900 dollars with 2800 charge from tea for heads and porting
total engine shortblock $4300
heads $3700
t-rex cam $399
Old 08-17-2005, 02:26 PM
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Originally Posted by bernard shortt
just have tea port ur afr 's thats what i done and i'm pushing 500 at the wheels with a t-rex and 402 slp stroker with afr heads stage 3 from tea
have your cake and eat it to!!! lol,,but u need comp cams best spring
900 dollars with 2800 charge from tea for heads and porting
total engine shortblock $4300
heads $3700
t-rex cam $399
not to put a damper on your setup bet there's been at least a half dozen out the box 225's on 402's that have put down 520-550rwhp, relatively small cams, ~11.1 CR, ect.

hell, purevil is putting down damn near 450rwhp with a 8.5 CR 408, 220 turbo cam, and box stock 225's, gears, ect.
Old 08-21-2005, 11:56 PM
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Originally Posted by bernard shortt
just have tea port ur afr 's thats what i done and i'm pushing 500 at the wheels with a t-rex and 402 slp stroker with afr heads stage 3 from tea
have your cake and eat it to!!! lol,,but u need comp cams best spring
900 dollars with 2800 charge from tea for heads and porting
total engine shortblock $4300
heads $3700
t-rex cam $399
$3700 for heads and only PUSHING 500rwhp???

hate to say it, but you got hosed!
Old 08-22-2005, 12:22 AM
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I got the car tuned on Friday. I had it tuned 4 months ago by Jeff Creech with all my bolt-ons and a 224/224 570 lift 114 lsa cam.

I just installed the 1.5 TEA 5.3 heads with 10:63.1 with stock GM head gaskets.

All I did was install the heads and nothing else.

Jeff Creech tuned it this Friday

Results: Gained 34 rwhp and 29 rear torq.

Also note I am a A4 with a 3,200 stall

So what do you all think of the Numbers?

Last edited by 1 BLOWN V8; 08-22-2005 at 12:29 AM.
Old 08-22-2005, 12:28 AM
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What are your final numbers???
Old 08-22-2005, 09:06 PM
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Originally Posted by bernard shortt
just have tea port ur afr 's thats what i done and i'm pushing 500 at the wheels with a t-rex and 402 slp stroker with afr heads stage 3 from tea
have your cake and eat it to!!! lol,,but u need comp cams best spring
900 dollars with 2800 charge from tea for heads and porting
total engine shortblock $4300
heads $3700
t-rex cam $399
Ouch....
Old 08-22-2005, 10:43 PM
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Originally Posted by BlueSix
Ouch....

Wonder if he got a "reach around" during the f'in he recieved??
Old 08-24-2005, 05:34 PM
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34RW from a set of 1.5's is excellent for an A4...
For a very economical priced head these are good results.

And FWIW...
My 430RW T/A went 124 threw a------->A4
DA was bouncing between -20 and +30 all day
Race weight 3365lbs
Old 08-24-2005, 05:38 PM
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Originally Posted by JS
34RW from a set of 1.5's is excellent for an A4...
For a very economical priced head these are good results.

And FWIW...
My 430RW T/A went 124 threw a------->A4
DA was bouncing between -20 and +30 all day
Race weight 3365lbs
I wonder if I would have gained any with the afr 205 heads out of the box with no porting. I have a little less hp then you.
Old 08-24-2005, 06:00 PM
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Originally Posted by bernard shortt
just have tea port ur afr 's thats what i done and i'm pushing 500 at the wheels with a t-rex and 402 slp stroker with afr heads stage 3 from tea
have your cake and eat it to!!! lol,,but u need comp cams best spring
900 dollars with 2800 charge from tea for heads and porting
total engine shortblock $4300
heads $3700
t-rex cam $399

I would be looking for those extra 25-30 missing horses
Old 08-24-2005, 06:35 PM
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You know **** like that doesn't just 'disappear' .
Old 08-25-2005, 12:48 PM
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1 blown that is a nice gain
Old 11-08-2005, 09:20 PM
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Hi all: Just read another independent test in GMHP Tech magazine. They gained 37hp and 31 torque on a near stock 99 corvette with tuning on the AFR 205's. These results were better than the test Vinci performance got because they used a stock head gasket and the heads were unmilled. Just posting this up for information if it wasn't allready done. Bye
Old 11-08-2005, 10:37 PM
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vinci gained 39.5 rwhp and 37.3 rwtq on a completely stock vette. not a near stock. on stock tune. more info on the GMHTP article. did they tune it? vinci's test was on stock tune as well. vinci used the mr gasket head gaskets. so, this was when it was being contemplated if mr gaskets were nothing more than victor reinz gaskets. i did my swap at about the same time. i just pulled mine recently. they were the victor reinz packaged in mr gasket. not flaming. just comparing.
Old 11-08-2005, 11:29 PM
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more info...

i gained 31hp/41lbft tq with the TEAs on a Mustang Dyno, untuned.
Old 11-09-2005, 01:25 AM
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Hi: The article was in the new Dec issue. The results were after the car was tuned. They pickup 10hp after tuning so it was 27hp and 24 torque before tuning. I was mistaken about the results Vinci performance got I thought it was 36 Hp. The car in this test only had flowmaster mufflers and varram air intake on it. They used the heads unmilled and a stock MLS gasket so they didn't alter compression. When Vinci ran the test the heads were milled and they used the thinner head gasket if I remember. The Afr heads give you better gas mileage too due to the small port high velocity design. So figure the heads are good for 35-40hp after tuning at least. A guy in the dyno section did over 400hp on a Z06 with the heads and stock exhaust. hope this clarifies things a little. See Ya.
Old 11-09-2005, 07:23 AM
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I love this thread I have been trying to decide which heads to match with what cam and I think my eyes are bleeding from all the searches I've done and threads I've read. But the poll here right now is an overwhelming 70% for AFR and 30% for TEA. That right there might just push me towards AFR 205's.

But on a bit off topic. JRP you said in this post;

Originally Posted by jrp
its the same **** with all the header posts; guys are still making good power with there cheapie flowtechs and pacesetters. however, the kooks/qtp guys on average are making more power.
But your sticky (which I have read a few times and has tons of great info) says;

Originally Posted by jrp
When buying long tubes what you are paying for is fitment, quality, fit and finish. All LT's dyno within the same net gain. Swap from one brand to another for the sole purpose of gains and you'll be disappointed.
I went with Pacesetters because I believed what you said in the sticky. My car gets stored in the winter and I'm more concerned with track results then appearances (I don't care if it has a little rust as long as it still produces HP).

Are you now saying I left some horses on the table by not going with Kooks or QTP?



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