Looking for highest Hp 383 N/A combo
Thread Starter
Joined: Dec 2008
Posts: 166
Likes: 17
From: Richmond Hill, Ont, Canada
Looking for highest Hp 383 N/A combo I'm looking for the highest Hp from a 383 N/A Combo.
Please post up your Combo and Hp/Tq numbers.
This will help me decide which way to go next with my current setup.
Thanks
Please post up your Combo and Hp/Tq numbers.
This will help me decide which way to go next with my current setup.
Thanks
Numbers before going to LG big 3 exhaust in my sig. 92 octane, 243 stock head castings CNC'd, 3:90 gears, ported fast, LG pro long tubes no cats, yada yada. Not the best, but made the most of what I had available to me at the time.
Last edited by slowride; Sep 19, 2009 at 10:11 AM.
My numbers are basically the same as slowriders!
500rwhp, 460rwtq
383cubes, stock 10-bolt, M6 with 3:73 gears, and so on.....
All my info is on my web-page link found in sig below.
500rwhp, 460rwtq
383cubes, stock 10-bolt, M6 with 3:73 gears, and so on.....
All my info is on my web-page link found in sig below.
On a happier note, I believe there were a couple that made ~520/470. I'll need to check my bookmarks and see if I tagged any of them.
Tony Mamo is the guy! His engine builds are nothing short of perfection.
...and the numbers prove it. But, I agree they are in a league of their own and not the best for comparison.
That said, I had Tony port my AFR heads and I gained a lot of power 'under the curve'. My peak numbers went up some, but its the power everywhere else went up a lot. Which for me (and many others) can be more important than peak.
...and the numbers prove it. But, I agree they are in a league of their own and not the best for comparison.
That said, I had Tony port my AFR heads and I gained a lot of power 'under the curve'. My peak numbers went up some, but its the power everywhere else went up a lot. Which for me (and many others) can be more important than peak.
Last edited by Michael02hawk; Sep 20, 2009 at 07:45 AM.
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thought of Mamo's car too as soon as I opened this thread, then I remembered it was a solid roller. IMO his car can't compare; I'll drive just about anything on the street but, a SR is a strech.
On a happier note, I believe there were a couple that made ~520/470. I'll need to check my bookmarks and see if I tagged any of them.
On a happier note, I believe there were a couple that made ~520/470. I'll need to check my bookmarks and see if I tagged any of them.
His car had 4.10 gears and I remember him saying the car drove fine on the street even with Solid Roller.
I have a video of that car sounded sick and when he launched
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Engine was a:
383ci aluminum block
4" Stroke 3.905? bore
Diamond Flat top pistons, nitrous gapped total seal rings
G5x4 Cam
Wells Racing engines built the short block.
243's hand ported (numbers around 295-300 @ .600, with good mid numbers)
Stock, unported Fast 90/90
Pacesetter LT's going into offroad y-pipe, dumped under rear seat (still just 3.5" at y)
Stock air filter
It made:
503rwhp
459rwtq (uncorrected)
498rwhp
457rwtq (corrected)
A/F was around 12.5, so still a little rich. More power to still be found using a ported Fast, larger exhaust at the y-pipe, and leaning the tune a little more.
Link to post:
https://ls1tech.com/forums/dynamomet...o-results.html
383ci aluminum block
4" Stroke 3.905? bore
Diamond Flat top pistons, nitrous gapped total seal rings
G5x4 Cam
Wells Racing engines built the short block.
243's hand ported (numbers around 295-300 @ .600, with good mid numbers)
Stock, unported Fast 90/90
Pacesetter LT's going into offroad y-pipe, dumped under rear seat (still just 3.5" at y)
Stock air filter
It made:
503rwhp
459rwtq (uncorrected)
498rwhp
457rwtq (corrected)
A/F was around 12.5, so still a little rich. More power to still be found using a ported Fast, larger exhaust at the y-pipe, and leaning the tune a little more.
Link to post:
https://ls1tech.com/forums/dynamomet...o-results.html
TECH Apprentice
Joined: Nov 2005
Posts: 308
Likes: 0
From: ne ct summer,naples in the fall
532/472 using a roller cam (vrx5) NOT A SOLID LIKE TONY DID FOR HIS BUILD...
fast 92/ported ls2 by vengeance
vengeance vrx5 cam
tfs 215 milled- 11.6-1
kooks 1 3/4 with 3x3 catted - who says you need 1 7/8- bahhh
i have sat side by side from 30-150 with a new zr1...they cant pull me...
full details in my vids on youtube- the car has a 6800 rev limiter..it was still pulling in the vid....
http://www.youtube.com/watch?v=KAB1H4F5pvs
http://www.youtube.com/watch?v=YyIemYwBZfc
fast 92/ported ls2 by vengeance
vengeance vrx5 cam
tfs 215 milled- 11.6-1
kooks 1 3/4 with 3x3 catted - who says you need 1 7/8- bahhh
i have sat side by side from 30-150 with a new zr1...they cant pull me...
full details in my vids on youtube- the car has a 6800 rev limiter..it was still pulling in the vid....
http://www.youtube.com/watch?v=KAB1H4F5pvs
http://www.youtube.com/watch?v=YyIemYwBZfc
Here's a combo I built with a HYD. roller that almost matched the numbers from my solid build. This guy dialy drives this car 20 miles each way to the hospital he works at in Northern CA.
Bad azzz high powered dependable package that once again focuses on selecting the right components and endless attention to detail.
Note the torque output....nothing has come close that I have seen in a 383 CID package....including my SR combo.
https://ls1tech.com/forums/generatio...-job-done.html
For those who have never seen this, a video of my former 383 in action fresh off the dyno right outside A&A Corvette....it was just a quick impromptu video that really worked out kind of well. In hindsight a "heater" would have been nice.....LOL (Note the traction non-existant with DR's in the lower two gears. Shiftlight came on at 7200....rev limiter @ 7400). You could drive this package every day as well....
http://videos.streetfire.net/video/5...02-A_58201.htm
Cheers,
Tony
Bad azzz high powered dependable package that once again focuses on selecting the right components and endless attention to detail.
Note the torque output....nothing has come close that I have seen in a 383 CID package....including my SR combo.
https://ls1tech.com/forums/generatio...-job-done.html
For those who have never seen this, a video of my former 383 in action fresh off the dyno right outside A&A Corvette....it was just a quick impromptu video that really worked out kind of well. In hindsight a "heater" would have been nice.....LOL (Note the traction non-existant with DR's in the lower two gears. Shiftlight came on at 7200....rev limiter @ 7400). You could drive this package every day as well....
http://videos.streetfire.net/video/5...02-A_58201.htm
Cheers,
Tony
Last edited by Tony Mamo @ AFR; Sep 26, 2009 at 11:58 AM.
Mine only went 490/445rw but it ran 10's@130 on DR's. There was alot on the table. I had Tony's exhaust, non ported 90 and some junk ported 243 heads. The cam was also a little big and lazy in every combo I have used it in. With todays parts and all the new stuff out there I would think 520rw 383's should be the norm.
my buds camaro 383 w/tfs215 heads,23x/24x cam,crap old slp 1 3/4 headers,non ported fast intake,12bolt,m6 w/4.11's made 500hp 460tq. when he swaps to kook headers and ports the fast he may be 520hp.