Dynamometer Results & Comparisons - LS2, TFS 215, Fast 102, VRX5= 496.9rwhp/446.5rwtq

So after after waiting for such a long time I finally got my car together and together and to the dyno. 496.9rwhp, 446.5rwtq. Parts and dyno were
http://i1079.photobucket.com/albums/w505/supermaro54/c52aec95.jpg

LS2 shortblock
VRX5 cam (236/238 601/605 113)
Stock Trickflow 215 with .650 lift springs (from vengeance)
Yella Terra 1.7 rockers
Vengeance ported 102 intake, 92 fast TB
36lb injectors at 80% duty cycle
85mm MAF
Tick stage 2 T56
Spec 2
Kooks 1 7/8 LTs, with Kooks TDs (no cats)
Strange 12 bolt with 3.73 gears
NGK TR55 plugs, MSD wires
UD pulley (mystery no name brand)

A huge thanks to Ron at vengeance for the parts. Charlie and Austin at RPM motors in Santa Clarita for a great tune, and of course my buddies Chris, and chino with helping with the install and getting her running.

Any advice on how to get over that 500 mark? I don't have a catch can which Charlie mentioned that I deffinately need. I dynoed with 18" wheels and 315/30/18 street tires.

Maybe a better induction system and a 102 tb. Maf or SD tune? Either way pretty freaking awesome numbers. Heads straight out of the box?

Maybe a better induction system and a 102 tb. Maf or SD tune? Either way pretty freaking awesome numbers. Heads straight out of the box?

Well they came with .600 lift springs took them to Richard at WCCH to have .650 lift springs installed. I also wanted to verify the CC of the heads. He did nothing aside from that. Stock valves, GM ls2 head gasket.

I have another set of TFS 215 those are milled to 59cc which I was saving for an L92 experiment. I might do a head swap to get me another 10-15 hp that I'm leaving on the table according to Charlie.

Thats a really nice setup. Im addicted to these stock shortblock LS2/TFS heads combo's.
I see a set of TFS225's on my 6.0 in the near future.

Thats a really nice setup. Im addicted to these stock shortblock LS2/TFS heads combo's.
I see a set of TFS225's on my 6.0 in the near future.

Thanks, I was also debating on doing the 225s but ended up going with the 215s for better bottom end TQ. The 215 flow numbers are based of off a 3.9 bore vs the 225s are on a 4.0 bore. The 215s will improve flow when flowed on a 4.0 bore. As I was told by T.E.A. I believe I spoke with Mike about it.

Pretty sold numbers and a damn nice choice of heads and cam!

Nice numbers man... Should be a very stout car.

Very impressive numbers. With a few tweaks you will be over 500rwhp.

I have another set of TFS 215 those are milled to 59cc which I was saving for an L92 experiment.
maybe i missed it but what CC are the heads that your running?

Pretty sold numbers and a damn nice choice of heads and cam!
Yeah I'm a HUGE fan and loyal to TFS.

Nice numbers man... Should be a very stout car.
Thanks yeah, shes a beast. Now my next issue is traction
Very impressive numbers. With a few tweaks you will be over 500rwhp.
Thanks, can't wait to fire up that beast of yours. We will see how my L92 does on my 68 camaro.
I have another set of TFS 215 those are milled to 59cc which I was saving for an L92 experiment. QUOTE]

maybe i missed it but what CC are the heads that your running?

From what I recall richard telling me they at 64cc

From what I recall richard telling me they at 64cc

Get them milled to 59cc and theres your 500+. Most people I see run the TFS heads at 59cc which is roughly 11:5.1 cr I believe.

Milling them would get you some more power, or just go back on a colder day :D

Get them milled to 59cc and theres your 500+. Most people I see run the TFS heads at 59cc which is roughly 11:5.1 cr I believe.
That's possibly next. I might just pull these heads off and install the set sitting in my garage.
Milling them would get you some more power, or just go back on a colder day :D
The "plan" was to dyno first thing in the morning. With my luck ALT gave out during the street tune(actually my battery gauge was showing very low as I was pulling into the shop). Luckily Charlie and his crew ordered a new ALT for me and swapped it out. But by this time it was already almost 2pm and HOT!!

Any opinions on swapping to an NGK TR6 plug? Heard it might help a bit.

perhaps swapping out the MAF would net you 3rwhp

Any opinions on swapping to an NGK TR6 plug? Heard it might help a bit.

Mine ran a little rough with the TR55's, swapped them out for TR6's and the engine runs a lot smoother/efficient.

I read the "Rule of thumb" is one degree colder for every additional 100~ hp

Impressive numbers BTW :chug:

For the record my TFS 215's are 59cc, I also run a tr6.

Impressive numbers BTW :chug:
Thanks.
For the record my TFS 215's are 59cc, I also run a tr6.

Yea I'm going to do the small changes and see if I get that magic number. Or swap a stock 10 bolt in lol. As far as the heads go, I have the milled heads so eventually I might swap the heads. Figure I might enjoy the car as is for at least a few months.

can you post the dyno graph? id like to check it out.

Thanks.


Yea I'm going to do the small changes and see if I get that magic number. Or swap a stock 10 bolt in lol. As far as the heads go, I have the milled heads so eventually I might swap the heads. Figure I might enjoy the car as is for at least a few months.

Yeah that thing will certainly do you more good putting smiles on your face than sitting chasing another 10-15 horsepower while your swapping heads. Wait until you've got the itch to do it and then it will be time :D

I wouldn't worry about cracking the number really, you wouldn't be able to tell a 5hp difference it might show it up the dyno maybe the track if you can run really consistently and do some before and after comparisons.

Hell throw two donuts on that bitch with a 10-bolt and there you go 500 hp :D

Here's some pics of the graph and while I was at dyno.
http://i1079.photobucket.com/albums/w505/supermaro54/c52aec95.jpg
http://i1079.photobucket.com/albums/w505/supermaro54/8c3e717c.jpg
http://i1079.photobucket.com/albums/w505/supermaro54/477bcc30.jpg
http://i1079.photobucket.com/albums/w505/supermaro54/6bf67a09.mp4

very nice

I bet leaning it out to 13.0 A/F, run some 17" rims & bump the CR up to 11.5:1 you get 510+/460. Nice graph though! Looks like you got 375ftlbs of torque at 3000. Thats gotta feel good.

Fastest way would be just to go speed density tune. Ive seen some marginal gains sd vs 85 maf. But just depends how much your tuner charges to do a sd tune.

Great results Supermaro!!! We love seeing our product make big power across the country :)

Give us a call with any updates. I know you are going to go for 500rwhp thru that 12 bolt :)

I bet leaning it out to 13.0 A/F, run some 17" rims & bump the CR up to 11.5:1 you get 510+/460. Nice graph though! Looks like you got 375ftlbs of torque at 3000. Thats gotta feel good.
Yea, feels great but has no traction now.
Fastest way would be just to go speed density tune. Ive seen some marginal gains sd vs 85 maf. But just depends how much your tuner charges to do a sd tune.
I'm going to look into this option. I'll talk it over with the guys at RPM.
Great results Supermaro!!! We love seeing our product make big power across the country :)

Give us a call with any updates. I know you are going to go for 500rwhp thru that 12 bolt :)

Thanks Ron for the help and support. I'll deffinately keep you guys updated and posted when I go way passed that 500 mark.

VE/MAF tunes have been proven time and time again to make better power than a SD tune. There is a reason GM uses both sensors.

FWIW there would be more horsepower gain on a cooler day, with Royal Purple oils through out!

Or a lighter wheel or tire and more PSI in the tires.

If your car runs great on the VE/MAF setup leave it!

Go with a Cutout and see if you can break the 500whp mark.

Or spend about $600+ on an EWP and youll have it for sure!

VE/MAF tunes have been proven time and time again to make better power than a SD tune. There is a reason GM uses both sensors.

FWIW there would be more horsepower gain on a cooler day, with Royal Purple oils through out!

Or a lighter wheel or tire and more PSI in the tires.

If your car runs great on the VE/MAF setup leave it!

Go with a Cutout and see if you can break the 500whp mark.

Or spend about $600+ on an EWP and youll have it for sure!

The goal was to do they dyno early in the morning but while they were doing the street tune (actually as I was pulling into the shop) the Alt gave out. Luckily Charlie was cool and got his crew working on moving cars off of the lifts and made room for mine. Located an Alt for me and swapped it out. By then it was HOT in the afternoon.

As far as cutouts go, hmm cutting into that kooks TDs system should be a crime. That and i doubt theres much restriction on the exhaust end.

Lighter wheels are another option. I'm looking at running a 17x9 Fikse with a lighter tire and see if this helps. I'm sure will be a lot lighter than my 18x11 simmons.

BTW thanks for everyones advice and help.

No valve control issues which is a good sign with that setup that people complain about that doesn't work. Good job and great numbers. :)

Oh man the Kooks TD is such a sweet piece I you were running that. Sweet car for sure.