Time to retune

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Time to retune

Postby cougar » Thu Apr 14, 2016 9:17 am

Finally got around to installing the hated 7X.010 injectors in my 92. Didn't have time to do any tuning as it was late and I had to get home. Going for a towing tune like I had on my 91.5.
First thing I have to do it turn up the idle, right now it won't. As it sits, if you get on it even a little it's light out for whoever is behind you. No smoke or haze cruising or at idle. So, I'm going to bump the timing a little, then play with the pump settings for a while. Then back to probably reindexing the throttle lever (if I can) and resetting the idle screw.
RIP 91.5 W250 5 speed. The great experiment.
92 W250 HD 47RH with Compushift. Upgraded H1C to 60/60/16, modified fuel pin, and DAP 7X.010 injectors.
01 2500 "the work truck".
cougar
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Re: Time to retune

Postby ellis93 » Thu Apr 14, 2016 6:44 pm

They're not hated.....not by me :lol: I like mine just fine......once the pop pressures are set right they do fine.

Where the timing at right now?
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz
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ellis93
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Re: Time to retune

Postby cougar » Fri Apr 15, 2016 8:17 am

The truck was bone stock when I bought it. The only things I've already done so far is swap out the turbo to the modified H1C I had (GDS 60mm compressor and 16cm2 exhaust housing) and modified fuel pin. I also turned the fuel screw, but it was only a quarter turn until it hit the collar. Timing has not been touched and injectors were original.
RIP 91.5 W250 5 speed. The great experiment.
92 W250 HD 47RH with Compushift. Upgraded H1C to 60/60/16, modified fuel pin, and DAP 7X.010 injectors.
01 2500 "the work truck".
cougar
14mm rotor
 
Posts: 900
Joined: Sat Apr 18, 2009 3:31 pm
Location: The Valley of no concern, AK
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Re: Time to retune

Postby cougar » Fri Apr 15, 2016 3:37 pm

That was mildly entertaining. Reindexed the throttle lever and now the idle is too high even with the screw backed all the way out. I'm within a hundred RPM though. Turned the star wheel up a turn. Made a big difference on the smoke. Takes about 2 seconds to hit 30psi. Throttle is very responsive at cruise speed.
RIP 91.5 W250 5 speed. The great experiment.
92 W250 HD 47RH with Compushift. Upgraded H1C to 60/60/16, modified fuel pin, and DAP 7X.010 injectors.
01 2500 "the work truck".
cougar
14mm rotor
 
Posts: 900
Joined: Sat Apr 18, 2009 3:31 pm
Location: The Valley of no concern, AK
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Re: Time to retune

Postby cougar » Mon May 30, 2016 12:15 pm

Did some more tuning. Boost up to 35 and less smoke. Haven't touched the timing yet.
RIP 91.5 W250 5 speed. The great experiment.
92 W250 HD 47RH with Compushift. Upgraded H1C to 60/60/16, modified fuel pin, and DAP 7X.010 injectors.
01 2500 "the work truck".
cougar
14mm rotor
 
Posts: 900
Joined: Sat Apr 18, 2009 3:31 pm
Location: The Valley of no concern, AK
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