Thread: ? V-TECH tune 8900
09-30-2012, 07:26 PM #1
? V-TECH tune 8900
How does the 8900 rpm with 60 inj work with 20lbs boost
09-30-2012, 07:41 PM #2
- Join Date
- Oct 2006
- Dayton, OH
I am currently in the process of tuning a XXX charger with the 8900 tune. Getting close to making it work. as taken allot of time but getting there..
09-30-2012, 07:53 PM #3
60's may not quite cut it for 20 psi. I am running 80's with an Et race I was told 60's would require a ton more fuel pressure and still may be lean at wot
09-30-2012, 08:07 PM #4
10-01-2012, 08:47 AM #5
14+ so i gave up and ordered 80's. 60's might get you there but i wanted to be sure thats why i went with 80's, plus they were the same price as 60's. it got cold here and i got busy so i havent had a chance to test the tune vtech sent me for 80's. hopefully this week i will be able to, afr looks ok on the trailer but who knows until its under a load.
10-02-2012, 07:10 PM #6
[QUOTE=iron head;2048919]How does the 8900 rpm with 60 inj work with 20lbs boost[/QUOTE
if you dont mind me asking what are you doing to make 20 pounds of boost?
10-02-2012, 07:43 PM #7
^^ oh what isnt he doing ... ironheads ski is an animal from another world.....
10-02-2012, 07:54 PM #8
With Bosch 55's during the summer I run 42base and when its cooler 46lbs base. Highest fuel pressure I have seen was 62lbs @9k and close to 17lbs boost with my older ET 140 from the rising rate. As soon as I get my motor back together I will make a run with my new charger.
10-02-2012, 08:33 PM #9
10-03-2012, 08:51 AM #10
so basically if at WOT and fuel pressure turned up and you start to run lean, then your injectors need to be bigger to handle the fuel needed correct?
I am stuck in limited class and can't use any injector bigger that 48's, what rpm should I tune for with a Et-137 wheel?
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