Allison 6sp: newbie
- Thread starter jmac
- Start date
That I'd a big tune for a stock tranny. The tunes probably have a big defuel in the during shifts to help keep the stock tranny alive..
If he gave you a tune with 200 additional horsepower for a stock transmission with just a transgo the best thing for your truck is a new tuner.
Second, if your pressure relief valve is in fact leaking, (Checking rail at idle is not how to determine this) then I would do a race valve. I've had mixed results with shimming. And I've yet to have an issue with any of the race valves I've installed.
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Second, if your pressure relief valve is in fact leaking, (Checking rail at idle is not how to determine this) then I would do a race valve. I've had mixed results with shimming. And I've yet to have an issue with any of the race valves I've installed.
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He crimped the line for the return and the rail pressure went at idle so that's how we determined it was leaking n6 . And as far as the tunes I ask him yesterday about that . He assured me as long as I didn't beet on it hard all the time it would be ok. I guess I need to inquire about littel more
See if he will put his money where his mouth is and warranty your trans with that "200hp" tune Bc I had a 125-150? From rob and limped mine more than once
Find somebody to look at it who understands how a high pressure common rail diesel engien fuel system works. Even if the popoff was leaking, crimping the rubber hose WILL NOT hold back 26K+ PSI, it would blow up in your face. If he crimped off the main return for the engine, then I'm surprised it didn't blow all your return lines out of the injectors, and if it didn't blow them out, it should have stalled the engine. This is NO test to check for a leak. This test proves NOTHING. Common rail injection uses a pressure bypass valve for the injectors, so they must bypass fuel to open, and if the rail valve is in fact leaking, you can't just crimp the rubber hose off to check it, you put the hose in a jar, and see if fuel bypass's the valve(AKA bottle test). This sounds like a tuning issue, and I'm with all above, 200 ACTUAL RWHP increase will put your trans on SERIOUS borrowed time. I seen theres a bunch of tuners on Ebay selling tunes this big, but like a local tuner to me, they don't care when your trans bites the dust, somebody else just got some more work.