Rob's Turbo GMC Sierra RST Project
06-09-2010, 12:15 AM
#22
Update: Posi is in, loving that! However, still not a lot of traction, but much better.
Also, strapped the truck down to the dyno:
Here's the thread with video: https://www.performancetrucks.net/fo...13#post4476613
Also, strapped the truck down to the dyno:
Here's the thread with video: https://www.performancetrucks.net/fo...13#post4476613
07-26-2010, 08:34 PM
#23
Next Update: Removed Kenny Boost-A-Pump, installed another walbro 255. Also installed stronger wastegate spring. These runs made at 15 PSI.
Video: http://www.youtube.com/watch?v=V9nRm6vZl_I
Dyno Graph:
Video: http://www.youtube.com/watch?v=V9nRm6vZl_I
Dyno Graph:
07-26-2010, 08:36 PM
#24
Also, the baby turbo likes it's bottle to. Added a dry shot. Started with 35 jet, then 50, now at 75jet and 15psi boost. I re-drilled my T-Stat, truck truns around 175 now. Also AIT only raise about 5 degree nows on a 3rd gear pull when spraying.
07-26-2010, 08:47 PM
#27
TECH Junkie
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What did u do with wiring at the tank? i plan on putting a big external, and a hot wire kit. Just use the stock power wire to "trigger" the relay? and leave the rest of the wires hanging?
07-26-2010, 10:36 PM
#28
I use the stock power wire to trigger a relay also. The pumps have a 8 gauge feed power wire direct from battery. The top of pump housing is drilled for the wire and 8an fuel line connection. Inside the housing is Y'ed to the two walbro's.
07-26-2010, 10:59 PM
#29
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HAHA And you said you were going to dial back the boost once you played on 15psi and got a 600rwhp dyno........now look at you, added some nitrous ON TOP of 15psi LMAO
