dyno'd the turbo ta today
dyno'd the turbo ta today Finally got my turbo ta tuned today. For anyone that hasn't follwed the build threads the run down is.
Mwc everything, fab 9, drc th400, forged 370, 317 heads and a home built turbo kit with a precision 76 mm on it.
Car made 590 to the wheels between 9 and 10 psi! i am very happy with the results. The fuel pressure was falling off from 60 to 44 At these levels, and i ran out of injector. I need to get the fueling issue worked out, i believe its because i only have 1 hotwire kit powering 2 walbro 255's.
Anyways We turned it down a little to 9 psi, and the car made 576 whp @ 17 degrees of timing. There is alot left in it, and we will be pushing to atleast 15 psi in a couple weeks.
We plan on going to the track and running it @ the 576 hp next weekend, just to get a couple test passes done.
http://www.youtube.com/watch?v=4_fazgVVITU
Thanks, Chris
Mwc everything, fab 9, drc th400, forged 370, 317 heads and a home built turbo kit with a precision 76 mm on it.
Car made 590 to the wheels between 9 and 10 psi! i am very happy with the results. The fuel pressure was falling off from 60 to 44 At these levels, and i ran out of injector. I need to get the fueling issue worked out, i believe its because i only have 1 hotwire kit powering 2 walbro 255's.
Anyways We turned it down a little to 9 psi, and the car made 576 whp @ 17 degrees of timing. There is alot left in it, and we will be pushing to atleast 15 psi in a couple weeks.
We plan on going to the track and running it @ the 576 hp next weekend, just to get a couple test passes done.
http://www.youtube.com/watch?v=4_fazgVVITU
Thanks, Chris
110. 
I dont plan on street driving. the fuel pressure being to low is why we ran out of injector, not the gas. But i might of went down a country road and went through 1st and 2nd. Holy Crap, and amazingly it hooked!
I dont plan on street driving. the fuel pressure being to low is why we ran out of injector, not the gas. But i might of went down a country road and went through 1st and 2nd. Holy Crap, and amazingly it hooked! Trending Topics
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Never put it on a dyno, I had a single 255 and the 57# injectors and was running out of fuel pressure and injector when it went 6.59 in the 1/8 & yes I agree it should have been a 10.30. I was still running 4.10 gears then too. I now have a Magnafuel 4303 external pump, sumped a metal tank, ran bigger fuel lines, 83# injectors, & 3.50 gears, I plan on going back to the track next saturday and seeing if I can see some high 9's without blowing up my still stock LS1.
I have stock tank but two walbro 255's, -8 feed, -6 return, with a precision boost ref regulator thats good to 1000 hp they say, speed inc rails, and the 60lb injectors.. There should be enough fuel to get the car dyno'ing into the 700's and the inectors will be the park holding me back.
That would be awesome man. Im hoping for high 9's in my car with a built motor. It should weigh around 3100 without a driver, i think its should be do able.
I have stock tank but two walbro 255's, -8 feed, -6 return, with a precision boost ref regulator thats good to 1000 hp they say, speed inc rails, and the 60lb injectors.. There should be enough fuel to get the car dyno'ing into the 700's and the inectors will be the park holding me back.
I have stock tank but two walbro 255's, -8 feed, -6 return, with a precision boost ref regulator thats good to 1000 hp they say, speed inc rails, and the 60lb injectors.. There should be enough fuel to get the car dyno'ing into the 700's and the inectors will be the park holding me back.
Thanks for all the comments guys, means alot!
Chris
Before we really attacked the weight, it was about 3430 wet with no driver. I now have an iron block, and cage, but we took alot of weight out. Other then lexan, the pass seat, and some vfn stuff, i dont see anyway to get anymore weight out of it.
i will make sure i get it on the scales when i go to the track.
Chris
Well, i wasnt asking for that reason, im wondering why you are loosing fuel pressure with 2 walbros at less then 600whp. thats what i was getting at, not the quality of the fuel.
Before we really attacked the weight, it was about 3430 wet with no driver. I now have an iron block, and cage, but we took alot of weight out. Other then lexan, the pass seat, and some vfn stuff, i dont see anyway to get anymore weight out of it.
i will make sure i get it on the scales when i go to the track.
Chris
i will make sure i get it on the scales when i go to the track.
Chris
Cam was spec'd for the setup/motor. Its 232/238 .595 .605
thanks, Chris
Also remember, that 600hp on a th400 car is probably 700 on a t56 car. I am loosing alot of power with the th400, and 9 inch, but they usually go really fast with low number.