My 427 LS7 Firebird is complete! (video)
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
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
Thread Starter
8 Second Club
Joined: May 2002
Posts: 1,043
Likes: 0
From: Toronto
I love the internet haters trying to put down an hydraulic cam 427 that makes about 650HP at the crank ; Anyways I am typing this from the track where I have been since Friday.... This weekend is the 1st time out with the car and in 4075ft DA @ 3400lbs RW it's already gone 10.5NA and 9.8@141 1.43 60' with a 150HP ring 
Not bad for A4 hyd cam street car 
Not bad for A4 hyd cam street car 
With the the big improvement in heads/intake design I'm curious how these motors will do compared to a big ci afr, ETP, etc head/fast intake combo (500-540rwhp).
I know lg did 607 rwhp in a zo6 but not sure if that is easily repeatable. I was thinking 580-610rwhp with these motors would be nice, on pump gas.
I know lg did 607 rwhp in a zo6 but not sure if that is easily repeatable. I was thinking 580-610rwhp with these motors would be nice, on pump gas.
http://www.lgmracing.com/lgm-g7x4-idle.wmv
G7X4 + LG Pro Longtubes + Factory exhaust cutout override.
623rwhp 532rwtq
G7X4 + LG Pro Longtubes + Factory exhaust cutout override.
623rwhp 532rwtq
Thread Starter
8 Second Club
Joined: May 2002
Posts: 1,043
Likes: 0
From: Toronto
Nothing against LG but I don't see a single time slip to go along their dyno numbers.... Look at Katech's built up LS7's.... 640HP at the crank with ported LS7 heads bigger hydraulic cam dynoed with 100 octane gas.... Same motor with torquer cam made 600HP at the crank... Who do you have more confidence in???
Originally Posted by vmax1500
I love the internet haters trying to put down an hydraulic cam 427 that makes about 650HP at the crank ; Anyways I am typing this from the track where I have been since Friday.... This weekend is the 1st time out with the car and in 4075ft DA @ 3400lbs RW it's already gone 10.5NA and 9.8@141 1.43 60' with a 150HP ring Not bad for A4 hyd cam street car
Not bad for A4 hyd cam street car I also have no doubt what so ever that Katech could easily make an engine that burns 700+hp at the crank using all LS7 stuff and a nice hydraulic cam. But strict hp is not what they're going for.
Adrian
Thread Starter
8 Second Club
Joined: May 2002
Posts: 1,043
Likes: 0
From: Toronto
I did my 1st spray pass today with the 150hp shot in 3000ft DA and went 9.7 @ 142 with a 1.40 sixty.... On the motor it traps consistant 129's... I feel the tight converter is hurting the NA numbers.... I might get a single disk looser verter for NA passes.... Anyways.... The motor makes what it makes.... I am happy with 9.7's the 1st time out in bad air with a small 150 hit
Originally Posted by vmax1500
I did my 1st spray pass today with the 150hp shot in 3000ft DA and went 9.7 @ 142 with a 1.40 sixty.... On the motor it traps consistant 129's... I feel the tight converter is hurting the NA numbers.... I might get a single disk looser verter for NA passes.... Anyways.... The motor makes what it makes.... I am happy with 9.7's the 1st time out in bad air with a small 150 hit
Good lord. Can I borrow your tires for a weekend?