38r with ww2
Posting Guru
Joined: Mar 2007
Posts: 1,425
Likes: 9
I had 238/80s up until last year in my truck. I'd been running these Injectors for the last 7 years, along with a 38R. In stock form that Turbo would hit 38-40 lbs in the (all-out tune) by Matt. I do have the red line to the Turbo disconnected and plugged off as well. Might need to get a reburn on your hot tune.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
The biggest is the sound. While it still whines, it's a lower tone and not nearly as annoying as the stock wheel. No matter how hard I try, I can't make it surge (the stock wheel would surge a little) with 200/80 hybrids. Less smoke at low rpm boost, full throttle, hot tune smoke clears to a haze. Peak boost is 4-5psi higher. I can't say I've noticed it spooling any faster. What sold me was a thread on PSA where PHP saw big dyno gains on a truck with 250/200's and broke 600hp.
Laughing Gas
Joined: Nov 2013
Posts: 868
Likes: 1
From: SoCal
My butt dyno wasn't calibrated to the stock 38r wheel. I only ran it for about 200 miles (about 100 of those getting the air out of the HPO system) before swapping it and I installed the 38r along with 200/80 hybrids and a few other goodies. I still haven't done a 0-100mph run due to egt and fuel supply issues. I have the ingredients for a dual pump setup sitting on the workbench just waiting for some free time. To make a long story short, I can't say if it is any faster, but I can say it makes more boost for a given throttle position and rpm.
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