Best Race Header??
12-13-2011, 11:49 PM
#61
I was under the impression they were ready to start selling them to the public.
12-14-2011, 07:09 AM
#63
I honestly never kept that close an eye on things, I know it was faster then I ever went with mine, but I also know your car was a potato chip compared to my sled. I'm going to guess on the weight, 3050 to 3000, is that about right?
I know when mine went the fastest n/a I ever went with it, which was 10.54 @ 127(have that slip here and I read it twice) lvd's scale said 3410, 1/4 tank of gas, me in it.
I do recall that after you put that motor in Barry's car and did the solid roller it went 9.9 didn't it?
I know when mine went the fastest n/a I ever went with it, which was 10.54 @ 127(have that slip here and I read it twice) lvd's scale said 3410, 1/4 tank of gas, me in it.
I do recall that after you put that motor in Barry's car and did the solid roller it went 9.9 didn't it?
12-14-2011, 07:46 AM
#64
I honestly never kept that close an eye on things, I know it was faster then I ever went with mine, but I also know your car was a potato chip compared to my sled. I'm going to guess on the weight, 3050 to 3000, is that about right?
I know when mine went the fastest n/a I ever went with it, which was 10.54 @ 127(have that slip here and I read it twice) lvd's scale said 3410, 1/4 tank of gas, me in it.
I do recall that after you put that motor in Barry's car and did the solid roller it went 9.9 didn't it?
I know when mine went the fastest n/a I ever went with it, which was 10.54 @ 127(have that slip here and I read it twice) lvd's scale said 3410, 1/4 tank of gas, me in it.
I do recall that after you put that motor in Barry's car and did the solid roller it went 9.9 didn't it?
PS. Ten years of doing something wrong, doesnt make it right...
12-14-2011, 08:24 AM
#65
http://quicktimeperformance.com/FORUMS/QTPAR3.pdf
Its not on the site just yet. Call us if you are interested in it.
12-14-2011, 08:49 AM
#66
12-14-2011, 08:50 AM
#67
On a 200 shot is 8.96@155 also with 1 7/8 headers.
There is no need for larger primaries. Of the testing that i have done over the years with our race cars we have not found a need for big headers. Even with the very expensive exhaust calculator we have it shows no need for larger primaries on my car. Only thing it does show and i will agree with is to change from a 2 3/4"-3" Merge to a 3"-3 1/2" Merge Collector.
Now for the people that think running open headers is better. let me ask you this question:
Are going going faster because you have more flow or are you faster because you just dropped 100lbs off your car????
My car when it was high 9s ran faster with a the Y pipe and a single cutout over opening the dual cutouts.
Also if i care to run a faster NA time i would put my 1 3/4" header back on but that is not the goal of the car.
I hope our R&D for the past 15 years helps
12-18-2011, 06:46 PM
#70
Now for the people that think running open headers is better. let me ask you this question:
Are going going faster because you have more flow or are you faster because you just dropped 100lbs off your car????
My car when it was high 9s ran faster with a the Y pipe and a single cutout over opening the dual cutouts.
Have you seen what it dose when you add a closed cutout over not having one. When you put the dead end(s) in the system that add to the cutout "gain" people don't think about.
12-22-2011, 08:12 PM
#79
I talked to my machine shop that builds a lot of race engines and has for a long time . Also with hedman headers about this same issue.
I am building an 82 s10 with a max effort 347 ls1 12.1/1 compression th350 5000 stall & 9" rear with 4.56 gears . It currently has 28x10.5 slicks but plan to go to a 30x9 radial slick.
I asked both about headers and both told me with my light weight 2800 lbs and the 5000 stall and gear ratio that I should go 1"7/8-2" stepped.
My plan is to build a 408 next year so that is part of the reason but they both said that these headers will work great in my power range.
I also plan to run mufflers to the rear end and the big tune will help the exhaust system.
Any comments on this?
Also the truck intake I have been running is going to be replaced with a pro flo.
I am building an 82 s10 with a max effort 347 ls1 12.1/1 compression th350 5000 stall & 9" rear with 4.56 gears . It currently has 28x10.5 slicks but plan to go to a 30x9 radial slick.
I asked both about headers and both told me with my light weight 2800 lbs and the 5000 stall and gear ratio that I should go 1"7/8-2" stepped.
My plan is to build a 408 next year so that is part of the reason but they both said that these headers will work great in my power range.
I also plan to run mufflers to the rear end and the big tune will help the exhaust system.
Any comments on this?
Also the truck intake I have been running is going to be replaced with a pro flo.
12-22-2011, 10:40 PM
#80
Calvin Elston. Best in the country. Listen to him. You will be surprised what sizes make the best power when you design them right. 4-2-1 headers. Super easy to install.
http://www.elstonheaders.com/index.html
Check out the list of customers.
http://www.elstonheaders.com/index.html
Check out the list of customers.
Last edited by STOCK1090; 12-22-2011 at 10:48 PM.