Dyno #s for my new 402!
Dyno #s for my new 402! Numbers are finally in after 1200 mi break in. Motor is an AL 402 from TSP with their MS3 cam, Patriot heads, ported FAST intake w/LS2 tb, Halltech cai, FLP longtubes and Bassani catback. Here is the sheet:
[IMG]
[/IMG]
Numbers came out a little lower than tuner and builder expected. Tune is ultr conservative with like 24* timing, but I took it to VIR last Monday for 3 hours of track time. It is hard to believe it is 90rwhp less than sc motor I had. Car pulls strong and is a blast to drive. No one was outrunning me down the backstretch.
[IMG]
[/IMG]Numbers came out a little lower than tuner and builder expected. Tune is ultr conservative with like 24* timing, but I took it to VIR last Monday for 3 hours of track time. It is hard to believe it is 90rwhp less than sc motor I had. Car pulls strong and is a blast to drive. No one was outrunning me down the backstretch.
Staging Lane
Joined: Nov 2008
Posts: 96
Likes: 0
From: Belen, NM
What compression are you running? Nice torque curve, but does seem a little low for that many cubes. I would of figured you would have broke the 500rwhp barrier. I just made 480rwhp and 430ftlbs in my LS2 C6. We added ported 243 heads, cam, ported FAST and supporting mods. We bumped the compression quite a bit up and the car responded nice.
What compression are you running? Nice torque curve, but does seem a little low for that many cubes. I would of figured you would have broke the 500rwhp barrier. I just made 480rwhp and 430ftlbs in my LS2 C6. We added ported 243 heads, cam, ported FAST and supporting mods. We bumped the compression quite a bit up and the car responded nice.
I love TQ Curve 400+tq at 3500rpm
You have a lot left on the table better headers/exahust/heads/
Works really well at the track coming out of the slow turns!
TECH Enthusiast
Joined: Apr 2007
Posts: 629
Likes: 0
From: Charlotte, NC
Those heads and that cam choice are holding you back a lot! If your happy with it thats all that matters though. The car should be faster than the previous SC'ed setup especially on the road course.
Yea they are predicting for my 402 to make around 550-560 on motor. My set up is 11.75-1 compression. L92 ported heads, 242/236 around .630 lift cam, 1 7/8th kooks B&B prt, and the new fiber tuned sheetmetal intake by Nitrous Outlet.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever
Verdad Gallardo Car is definitely faster on the road course and will take a little more track time to adjust.
All of a sudden I am not feeling good about my Patriot heads. Seems like they stacked up pretty good on the flow sheet when I was researching them. I went with the MS3 because I dd mine and the MS3 seemed like a better choice. Is there such a thing as builders remorse?
All of a sudden I am not feeling good about my Patriot heads. Seems like they stacked up pretty good on the flow sheet when I was researching them. I went with the MS3 because I dd mine and the MS3 seemed like a better choice. Is there such a thing as builders remorse?
Launching!
Joined: Apr 2008
Posts: 225
Likes: 0
From: Connecticut
Car is definitely faster on the road course and will take a little more track time to adjust.
All of a sudden I am not feeling good about my Patriot heads. Seems like they stacked up pretty good on the flow sheet when I was researching them. I went with the MS3 because I dd mine and the MS3 seemed like a better choice. Is there such a thing as builders remorse?
All of a sudden I am not feeling good about my Patriot heads. Seems like they stacked up pretty good on the flow sheet when I was researching them. I went with the MS3 because I dd mine and the MS3 seemed like a better choice. Is there such a thing as builders remorse?
Last edited by JJD49; Dec 14, 2008 at 06:24 AM.
Launching!
Joined: May 2008
Posts: 282
Likes: 0
From: va beach
I also am building a 402 lq9 block fast 92/92, hooker 1 7/8 longtubes, ory 3" with 3" hooker aero chamber has big cam not exactly sure on specs yet, harland sharpe rockers 1.7, ls7 lifters and 11.5.1 compresion tfs cnc235 heads, have 3.73 gears and around 3600 stall in a stage 3 4l60e from art carr, slp lid, cutouts, hoping to be over 510 at the wheels.
I just did a '99 C5 for a friend of mine. The combo consisted of a stock bottom end, Fast 90 intake, LS2 Throttle body, G5X4 cam, ETP 225 Heads, LG Prolong tubes, Titanium catback and and underdrive puley. It made 472rwhp/440rwtq. I have yet to see great results from Patriot heads. Most of them are in the 470-480 rwhp range on a 402/408. I'd recommend the TFS 225's or 235's for your setup. You will be suprised how much HP you will pick up.
Launching!
Joined: May 2008
Posts: 282
Likes: 0
From: va beach
do you think it would make a difference to go to a 85mm granatelli I believe mine is an ls6 unit. Went to see the car this morning should be running by monday afternoon all the exhaust is done and everything is in the car can't wait i got goose pumps just checking it out can't wait to drive it.
bro. It's been covered on here over and over and over. Load bearing dynos are great tuning tools, but require "calibrating" which can lead to operator error or worse, manipulation. There is no given percentage that the DJs are higher, or lower, or whatever.Sorry OP for the
. I see ***** got ya hooked up!! Launching!
Joined: Apr 2008
Posts: 225
Likes: 0
From: Connecticut
do you think it would make a difference to go to a 85mm granatelli I believe mine is an ls6 unit. Went to see the car this morning should be running by monday afternoon all the exhaust is done and everything is in the car can't wait i got goose pumps just checking it out can't wait to drive it.
do you think it would make a difference to go to a 85mm granatelli I believe mine is an ls6 unit. Went to see the car this morning should be running by monday afternoon all the exhaust is done and everything is in the car can't wait i got goose pumps just checking it out can't wait to drive it.
