408 L92 valve float ? HELP
My lift is .630" with the 1.8 rockers not before. But if you have titanium or hollow valves this would make a difference in your combination and mine. My motor will turn that high we did it several times on the dyno but the power just drops instantly at about 6500rpm buy the time it reachs 6700 it loses 75hp or more.
My lift is .630" with the 1.8 rockers not before. But if you have titanium or hollow valves this would make a difference in your combination and mine. My motor will turn that high we did it several times on the dyno but the power just drops instantly at about 6500rpm buy the time it reachs 6700 it loses 75hp or more.
That's what I have and I dont have any problems. I am also using a stock L76 intake that everyone else seems to have so many problems with. I did have some issues when it was being tune, with the irridium plugs I had originally gone with. i changed over to ngk tr55's and completely fixed that problem I was having.
I can see where you are stumped on this problem.
I can see where you are stumped on this problem.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
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 well my next problem is it dynos fine but when it closed loop it runs like total **** !! I am tired of driving back and forth to New Era every other weekend they have spent a total of 24 hours tuning my car and it does not even feel close to being right I tried to drive it today for the first time and it took me 2 miles to get to 50 I turned around and put the car back in the garage because I was so ashamed. Ive pretty much spent all out on this project and have spent almost as much on tuning as it cost to build the engine and it runs horrible. I went to a local dyno today to make a couple passes and it only made 397hp and then 406hp. Not even close to the 468hp it made there. I go on the dyno and get to about 4500rpm for a pull and its seems fine ? I noticed the AF was 12.6 across the board but it still seemed to blow alot of smoke and smelled real rich ?
Ive had it eith Im going to have it tuned at the HP factory or Im going carb.
Ive had it eith Im going to have it tuned at the HP factory or Im going carb.
