[Z06] AHP heads/BTR Stage 2=550whp/510wtq
12-06-2016, 12:20 AM
#21
Safety Car
Nice results!!! keep the rubber side down!!!!! 
12-06-2016, 12:35 AM
#22
No videos, sorry.
Ive been super happy with the car. Drove it all summer and in September dropped it off to have the FAST/NW102/FIC 60lb injectors installed and re-tuned. Car drives even better(original tune wasnt that great), no surge except down around 1200rpm, which is hard to tune out. Hasnt been on the dyno yet as we are still playing with the tune a bit and have a bit more to do(the big throttle body is touchy to changes), but ive been out of town with work for a few months. Car was definitely faster post re-tune and new parts and tuner says you need to pick up ~30whp in order to feel it. So im guessing 580-590 at the wheels and the FAST manifold "in theory" should have shifted the TQ curve left a bit which I was after.
Pre-new parts and re-tune I drove the car from Dallas to St. Louis and back on vacation(~1800 miles give or take) and had zero issues. Car got around 23-24mpg. Needed 5th gear climbing any appreciable hills, but beyond that, cruised in 6th at 80+ no problem.
If I went to a different cam I would probably send flow numbers and other numbers to Brian Tooley or somebody else and get a custom cam matched to my heads and motor to try to coax a little more power out of it, but I would spec something similar to the BTR stage 2, just matched a little better to the characteristics of the heads. If you arent milling or p&p your heads, the BTR stage 2 will work well with your factory heads as I believe thats what the cam is spec'd to.
Ive been super happy with the car. Drove it all summer and in September dropped it off to have the FAST/NW102/FIC 60lb injectors installed and re-tuned. Car drives even better(original tune wasnt that great), no surge except down around 1200rpm, which is hard to tune out. Hasnt been on the dyno yet as we are still playing with the tune a bit and have a bit more to do(the big throttle body is touchy to changes), but ive been out of town with work for a few months. Car was definitely faster post re-tune and new parts and tuner says you need to pick up ~30whp in order to feel it. So im guessing 580-590 at the wheels and the FAST manifold "in theory" should have shifted the TQ curve left a bit which I was after.
Pre-new parts and re-tune I drove the car from Dallas to St. Louis and back on vacation(~1800 miles give or take) and had zero issues. Car got around 23-24mpg. Needed 5th gear climbing any appreciable hills, but beyond that, cruised in 6th at 80+ no problem.
If I went to a different cam I would probably send flow numbers and other numbers to Brian Tooley or somebody else and get a custom cam matched to my heads and motor to try to coax a little more power out of it, but I would spec something similar to the BTR stage 2, just matched a little better to the characteristics of the heads. If you arent milling or p&p your heads, the BTR stage 2 will work well with your factory heads as I believe thats what the cam is spec'd to.
If you ever get bored and feel like making a video, I'd be the happiest dude ever to hear the car at idle and under load. I just bought the car and am doing the build while deployed; won't see the thing till its all done and I'm back in June.
Can only find one BTR Stg 2 LS7 vid on youtube. 
12-06-2016, 12:41 AM
#23
Melting Slicks
Thread Starter
Thanks for the response. I am indeed using factory heads, nothing but the valve guide fix.
If you ever get bored and feel like making a video, I'd be the happiest dude ever to hear the car at idle and under load. I just bought the car and am doing the build while deployed; won't see the thing till its all done and I'm back in June. Can only find one BTR Stg 2 LS7 vid on youtube.
If you ever get bored and feel like making a video, I'd be the happiest dude ever to hear the car at idle and under load. I just bought the car and am doing the build while deployed; won't see the thing till its all done and I'm back in June.
Can only find one BTR Stg 2 LS7 vid on youtube.
12-08-2016, 04:20 AM
#24
Supporting Vendor
Member Since: Sep 2013
Location: Harbor City California
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No videos, sorry.
Ive been super happy with the car. Drove it all summer and in September dropped it off to have the FAST/NW102/FIC 60lb injectors installed and re-tuned. Car drives even better(original tune wasnt that great), no surge except down around 1200rpm, which is hard to tune out.
Ive been super happy with the car. Drove it all summer and in September dropped it off to have the FAST/NW102/FIC 60lb injectors installed and re-tuned. Car drives even better(original tune wasnt that great), no surge except down around 1200rpm, which is hard to tune out.
If you do make a video do be sure to post it back to the thread.
http://www.americanheritageperformance.com/
Last edited by American Heritage; 12-08-2016 at 04:21 AM.
12-14-2016, 09:57 PM
#25
Glad to see this thread, I've got the same AHP/BTR setup, still have stock IN/EX manifolds but do have the LG Super RAM CAI and Akrapovic axle back. As with everyone else, I had a fantastic experience with Kohle. Answered all my questions and made pertinent suggestions, would 100% recommend him to others. Got the car back 2 weeks ago and because mine was street tuned I didn't have any 'hard' numbers to go by but the builder suggested it was around the 550-600 mark. I suspect I'm just under your pre-intake/TB numbers since I'm still on the stock manifolds.
For the guy looking for the video, I'll try to get ya one this weekend. Planning on taking a backroad tour with a few friends if the weather holds out.
For the guy looking for the video, I'll try to get ya one this weekend. Planning on taking a backroad tour with a few friends if the weather holds out.
Last edited by Duffman692002; 12-14-2016 at 09:58 PM.
12-14-2016, 11:07 PM
#26
12-15-2016, 11:24 AM
#27
Melting Slicks
Thread Starter
Glad to see this thread, I've got the same AHP/BTR setup, still have stock IN/EX manifolds but do have the LG Super RAM CAI and Akrapovic axle back. As with everyone else, I had a fantastic experience with Kohle. Answered all my questions and made pertinent suggestions, would 100% recommend him to others. Got the car back 2 weeks ago and because mine was street tuned I didn't have any 'hard' numbers to go by but the builder suggested it was around the 550-600 mark. I suspect I'm just under your pre-intake/TB numbers since I'm still on the stock manifolds.
12-15-2016, 09:55 PM
#28
Without headers and the stock intake manifold/throttle body my guess is you are at like 515whp. Again just a guess. Are your heads milled and P&P'd? If not, you might be under 500whp. No way you are at 550 without headers and definitely no way you are at 600(im not even at 600 and im basically all out with the bolt ons).
No problem.
Last edited by Duffman692002; 12-15-2016 at 09:56 PM.
12-16-2016, 07:23 AM
#29
Burning Brakes
I'm surprised your injectors were at 92% with that setup. Did you end up getting injectors?
When you said you were running out of air were you guys looking at the map sensor reading? If so, what was the KPA at wot before and after your intake and throttle body change?
When you said you were running out of air were you guys looking at the map sensor reading? If so, what was the KPA at wot before and after your intake and throttle body change?
12-16-2016, 11:02 AM
#30
Melting Slicks
Thread Starter
A little above 6000rpm the dyno plot leveled off and stayed there until redline. I dont know what the KPA was, but the dyno chart never dropped off. Everybody(2 tuners and a few others) said if it was done making power it would have peaked and dropped off. The chart plus the IDC being 92% showed that the motor had the potential to flow a ton more air and was being restricted. Only 2 places it could have been was the factory 90mm throttle body or the factory intake manifold. Swapping those(and the injectors) yielded at least 30hp, probably more, hasnt been back on the dyno yet as we are still playing with the re-tune and I havent been home in 2 months.
As far as the IDC being 92%, my friend that has a similar setup to me, at the time, didnt have the p&p or milled heads that I did, and he was at 85% IDC I think. So 92% I didnt think was out of line considering I had P&P and milled heads along with everything else. I knew my injectors, throttle body and intake manifold would probably be the limiter in my setup.
12-16-2016, 11:04 AM
#31
Melting Slicks
Thread Starter
Im guessing 515-535. The factory manifolds flow well, but cats are definitely a restriction.
12-16-2016, 01:27 PM
#32
Team Owner
12-16-2016, 02:14 PM
#33
Racer
very nice looking graph.... torque curve is beautiful and I like how it doesn't just die up top but rather carry over to red line....550+whp and 510+wtq sounds good to me, especially if it drives as nice as everyone says it does.... can't wait to see new numbers with IM/TB.
12-18-2016, 12:19 AM
#34
Burning Brakes
The stock LS7 manifold flows a lot of air - doubt it was the primary issue. I made 576rwhp with stock manifold and throttle body (WCCH Heads, Cam & headers)
12-19-2016, 04:45 AM
#35
Supporting Vendor
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Location: Harbor City California
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We have seen dyno results with our AHP ported heads, stock manifolds (with other supporting mods) put down 575rwhp+. With the correct custom cam the stock exhaust can produce big numbers.
The stock manifolds are actually a really nice design (individual runners) and the way the cat pipe is used a a sort of collector.... Its a well engineered product.
http://www.americanheritageperformance.com/
The stock manifolds are actually a really nice design (individual runners) and the way the cat pipe is used a a sort of collector.... Its a well engineered product.
http://www.americanheritageperformance.com/
Last edited by American Heritage; 12-19-2016 at 04:45 AM.