Dynamometer Results & Comparisons - 402 LS2 535rwhp/490rwtq

Was run on Dynojet 248

Setup as follows:

11.4:1 Compression
TFS 235cc heads ported by TEA
247/251 .624/.624 112LSA CAM
FAST 92/92
1 7/8" Headers into 4" single exit exhaust
T56
In a Mazda RX7


Made 499rwhp/446rwrq on a Mustang Dyno couple months back. Nothing major changed.


On my first run which isn't shown, car either spun or clutch slipped. I had paint off the dyno rollers on my tires though. 2nd run did too a little as you can see.

http://img.photobucket.com/albums/v700/YourSportSucks/IMAG0458.jpg





Here's a run on the dyno. Disregard the title.

http://www.youtube.com/watch?v=HFOw6psaIFk&list=FL2BKSpt576fRAW2i1fS7eIg&index=5&feature=plpp_video


Another one just for hahas

http://www.youtube.com/watch?v=ZTV7ApgDoT0&feature=autoplay&list=FL2BKSpt576fRAW2i1fS7eIg&lf=plpp_video&playnext=3

Lots of power for an RX7 :nod:

Nice numbers!! Any pictures of the car or track times?

.... very nice from a fellow 402.

That's incredible. I'm hoping for 500 plus on 364 cubes n/a

That's incredible. I'm hoping for 500 plus on 364 cubes n/a


How are you planning on accomplishing that?

Thanks for the feedback guys!

I went to the track last year on street tires and about 460rwhp. Was spinning all the way down the track. Best was a 12.7@124mph lol



Here's a pic from a photo shoot

http://img.photobucket.com/albums/v700/YourSportSucks/Edit42.jpg

mamofied fast 102, mamofied afr's (already have afr 205's milled to 59cc), custom spec'd cam, revamping exhaust, one hell of a tune, and a few things to free hp UDP, EWP if needed. figure hell if 346 guys can push out 520 whp on a 10 bolt then i can do 500 with a 12 bolt.

Stock bottom end? What C/R?

RX7 + LS2 500+rwhp + CCW Classic = Perfect car :D
Congrats man car/numbers looks great.

OP ... looks much better than the twin turbo rotary it replaced and I love the blue! Don't you love the torque ... there is nothing better than 500 ft-lbs at the rear wheels!

taman86 .... you may get 500 rwhp, but not 500rwtq without the cubes unless you put it on the bottle or boost.

are these SAE numbers?

Yea it def makes for a fun car, just wish I had a little more traction...
The numbers are Uncorrected.

are these SAE numbers?

FYI .... my numbers are based on the SAE correction factor with a smoothing factor of 3.

Yea it def makes for a fun car, just wish I had a little more traction...
The numbers are Uncorrected.

Yep, I am chasing traction issues right now. As soon as these stock shocks come off, I should be good to go ... Strange DA coilovers are on the way.

There is no hope for traction issues on street for me though.

ya i wasnt expecting anything close to 500 rwtq, hoping around 450ish though. plus i am in the process of buying a 12 bolt with 4.10 gears. yes stock bottom end, C/R is around 11.7 if i remember correctly. lol, still in the process of buying the car but have plans for it.

Damn, I was thinking my dyno was that far off till you said it was uncorrected.I'll never print uncorrected.

What the corrected number to give me an idea?

Never got any corrected numbers from them. This was just a local dyno day I decided to show up to. I made the most power out of 20 cars there.

The numbers are Uncorrected.

Never got any corrected numbers from them. This was just a local dyno day I decided to show up to. I made the most power out of 20 cars there.

If you were to go to an actual shop that used SAE correction you would probably get right around 500rwhp which is believable with the topend you have.

If you were to go to an actual shop that used SAE correction you would probably get right around 500rwhp which is believable with the topend you have.

I am just curious about your opinion .... why is 500 rwhp so "believable with the topend [he] has"?

I am making that power (SAE corrected) with a smaller head (bore & intake runner volume) (both CNC'd, but his ported), smaller valves, smaller tube headers, smaller cam, smaller intake and smaller throttle body.

If you were to go to an actual shop that used SAE correction you would probably get right around 500rwhp which is believable with the topend you have.
No. I would get more. I made 499rwhp on Slowhawk's Mustang dyno. As you know, Mustang dynos read lower than dynojet.

I would think 520rwhp or so.

The #'s are very good. Pretty sure he runs 4.11 gears which definitely hurt dyno numbers.

I have 3.90s which isn't too far off.

I was expecting about 520rwhp or so. On my last years setup I made 440rwhp on your dyno and 460rwhp on Corvette Center's dynojet.

Your car is gorgeous!! Such a teaser pic.. like a chick with her bra half way off. I want more :)

My iron 403 with tea tfs235 247/260 112+3 cam and a vic jr/accufab 4150 made 515hp SAE on a DJ248. 3475# race weight went 10.30's @ 132mph with 3.89 gear 28" slick and a 6spd.

.... very nice from a fellow 402.

You got any track times from your car.. I have a 403ci LS2 with the same heads but I had a little custom head work done and put in bigger valves..
First pass off the trailer it went 10.39@129mph. I've since installed the rear antiroll and I'm taking it back to the track this weekend to see what sort of 60fts I can get now.. My 60ft on the stock anti roll was 1.41 and my car weighs in at 3540..

Yep, I am chasing traction issues right now. As soon as these stock shocks come off, I should be good to go ... Strange DA coilovers are on the way.

There is no hope for traction issues on street for me though.

We do a little street racing around here and I have prepped the street with some pimp juice and have lifted the tires on the street already.. I out launched a low 10 second AWD eagle talon on the street pulling the tires about 2 feet.. lol.. But like I said I do have full suspension on my car..

My iron 403 with tea tfs235 247/260 112+3 cam and a vic jr/accufab 4150 made 515hp SAE on a DJ248. 3475# race weight went 10.30's @ 132mph with 3.89 gear 28" slick and a 6spd.

We are making close to the same power but I am an auto tranny.. What was your 60ft?
I have since installed my rear BMR extream anti roll in the rear and looking forward to lowering my 60ft from 1.41 to about 1.36-1.38.. This should bring me into the 10.2X's.. Even our cam size is close.. 246/255-632/645@114+2LSA Whats your intake valve size?

I am running a 4.11 rear gear with a 28" tall Hoosier Quick time pro slick..

You got any track times from your car.. I have a 403ci LS2 with the same heads but I had a little custom head work done and put in bigger valves..
First pass off the trailer it went 10.39@129mph. I've since installed the rear antiroll and I'm taking it back to the track this weekend to see what sort of 60fts I can get now.. My 60ft on the stock anti roll was 1.41 and my car weighs in at 3540..

I have only been to a local 1/8-mile track ... this link should answer your questions ... http://ls1tech.com/forums/drag-racing-results/1523239-gopro-vids-added-got-some-shakedown-runs-ss-w-sdpc-402-mid-7s-103-mph.html

We do a little street racing around here and I have prepped the street with some pimp juice and have lifted the tires on the street already.. I out launched a low 10 second AWD eagle talon on the street pulling the tires about 2 feet.. lol.. But like I said I do have full suspension on my car..

My "traction issues on the street" was just a general comment about my (or any) street tires not having traction. I don't nor do I choose to do any street racing ... those days are waaaay over for me. I have too much to lose now ... !

My "traction issues on the street" was just a general comment about my (or any) street tires not having traction. I don't nor do I choose to do any street racing ... those days are waaaay over for me. I have too much to lose now ... !

I hear ya.. To each his own.. I have a lot to lose to and don't race as much as I use to but I still do it from time to time.. I drive around on the street with my car with the Slicks and never have any trouble..

I have only been to a local 1/8-mile track ... this link should answer your questions ... http://ls1tech.com/forums/drag-racing-results/1523239-gopro-vids-added-got-some-shakedown-runs-ss-w-sdpc-402-mid-7s-103-mph.html

I have gone 6.5@104mph 10.39@129mph with a 1.41 60ft.. With this setup..

I have gone 6.5@104mph 10.39@129mph with a 1.41 60ft.. With this setup..

That is a great time ... with my mph, I am hoping to be in the 6's with the shocks, 2-Step and line lock. The line lock is sitting in the garage, rear coil overs came in today and the 2-Step was shipped today. Look for another post when I shake it down again. What kind of power are you putting down with the A4?

That is a great time ... with my mph, I am hoping to be in the 6's with the shocks, 2-Step and line lock. The line lock is sitting in the garage, rear coil overs came in today and the 2-Step was shipped today. Look for another post when I shake it down again. What kind of power are you putting down with the A4?

The A4 is a little faster than my tranny.. I have a th350.. With the 4L60E and my suspension I would be cutting low 1.3X or high 1.2X 60ft.. (with the last motor I was cutting 1.46 60ft with the 4L60E and then started cutting 1.52 60ft when I swapped to the th350) Not sure how much power it's putting down. The day it was tuned there was nothing but a quart of tranny fluid in the transmission and it dynoed 450rwhp with the slipping tranny and a 5000rpm stall.. First pass at the track I was blowing through the converter and ran out of gear before the 300ft mark.. LOL Then I added the right amount of fluid and ran the 10.39@129mph..

I'm still rocking a Mazda rear with road race suspension, I'll be lucky if I cut a 1.6sec 60foot lol


Your car is gorgeous!! Such a teaser pic.. like a chick with her bra half way off. I want more :)


Here's a phone pic from the dyno day.

http://img.photobucket.com/albums/v700/YourSportSucks/552743_3612025025366_1415987629_33475294_123318346 6_n.jpg



Added a couple vids from the dyno day that I found on youtube. Check post#1.

By chance do you have flow data on the ported heads?

Before & after?

My iron 403 with tea tfs235 247/260 112+3 cam and a vic jr/accufab 4150 made 515hp SAE on a DJ248. 3475# race weight went 10.30's @ 132mph with 3.89 gear 28" slick and a 6spd.

You got any track times from your car.. I have a 403ci LS2 with the same heads but I had a little custom head work done and put in bigger valves..
First pass off the trailer it went 10.39@129mph. I've since installed the rear antiroll and I'm taking it back to the track this weekend to see what sort of 60fts I can get now.. My 60ft on the stock anti roll was 1.41 and my car weighs in at 3540..

We are making close to the same power but I am an auto tranny.. What was your 60ft?
I have since installed my rear BMR extream anti roll in the rear and looking forward to lowering my 60ft from 1.41 to about 1.36-1.38.. This should bring me into the 10.2X's.. Even our cam size is close.. 246/255-632/645@114+2LSA Whats your intake valve size?

I am running a 4.11 rear gear with a 28" tall Hoosier Quick time pro slick..

I have gone 6.5@104mph 10.39@129mph with a 1.41 60ft.. With this setup..

With track times and mph's like these in a na car, who cares what they dyno .... !

We are making close to the same power but I am an auto tranny.. What was your 60ft?
I have since installed my rear BMR extream anti roll in the rear and looking forward to lowering my 60ft from 1.41 to about 1.36-1.38.. This should bring me into the 10.2X's.. Even our cam size is close.. 246/255-632/645@114+2LSA Whats your intake valve size?

I am running a 4.11 rear gear with a 28" tall Hoosier Quick time pro slick..

By the way, I missed your question until now ... stock TFS CNC-ported 215's ... 2.040"/1.575"

Rx-7 is baddassss!

Man that car is pretty. Damn.

Almost exact setup to my old motor in my CTSV. 402 with TEA TF 235's, cam was 243-251 .624" 112, I had a stock FAST 102 and a GM 90MM TB.
It put down 518 rwhp and 464 rwtq SAE
and I just looked 534 rwhp and 479 rwtq UNCORRECTED
T56 with 3.73's/
Interesting.....

We are making close to the same power but I am an auto tranny.. What was your 60ft?
I have since installed my rear BMR extream anti roll in the rear and looking forward to lowering my 60ft from 1.41 to about 1.36-1.38.. This should bring me into the 10.2X's.. Even our cam size is close.. 246/255-632/645@114+2LSA Whats your intake valve size?

I am running a 4.11 rear gear with a 28" tall Hoosier Quick time pro slick..
Those times were on mid 1.5 60's. I was geared really tall for nitrous which really hurt the car when running NA on the short end and didn't get me in the RPM's I needed crossing the traps. My valve size was stock TFS235 which is 2.08in/1.60ex.

By chance do you have flow data on the ported heads?

Before & after?

They are off the shelf CNC ported by TEA, sorry for confusion.

Almost exact setup to my old motor in my CTSV. 402 with TEA TF 235's, cam was 243-251 .624" 112, I had a stock FAST 102 and a GM 90MM TB.
It put down 518 rwhp and 464 rwtq SAE
and I just looked 534 rwhp and 479 rwtq UNCORRECTED
T56 with 3.73's/
Interesting.....


Wow very close numbers to mine. Where was your torque peak?

Those are some good #'s. Deep in the 10's at around 135mph plus at your race weight...

Yea somewhere around there hopefully. Here's a guy that made similar numbers on his RX7, but I think his car has gone on a bigger diet.




http://www.youtube.com/watch?v=gAUySVeY4yc&feature=player_embedded




He ran a 9.974 since without any changes.

Wow very close numbers to mine. Where was your torque peak?

Here are the dyno runs for the 402. Lower numbers are the LS3 heads, higher numbers are the trick flows.

http://i287.photobucket.com/albums/ll159/veee8/cts-vtrickflow012.jpg

Pretty crazy how similar the dyno results are. Except at 5k I'm making about 30rwhp more and I hit 500rwhp earlier, but that could be due to my numbers being uncorrected. Also a bit more torque in the higher rpm range.

I notice a dip around the 3800rpm mark on the torque table on most dyno sheets, what is that?

Here are the dyno runs for the 402. Lower numbers are the LS3 heads, higher numbers are the trick flows.

http://i287.photobucket.com/albums/ll159/veee8/cts-vtrickflow012.jpg

are these heads cncd or are the stock(ls3heads)..