90mm UMI TB Conversion Complete - Pics inside
#11
Originally Posted by trever1t
I called it!!
Hey, your not running a 2-bar tune yet?
Hey, your not running a 2-bar tune yet?
The MAF is maxed out my 5800rpm. I am going to do a true 4" cold air intake system, remove the MAF, and have a 2 bar tune done. Then go from there.
#15
TECH Enthusiast
iTrader: (7)
Late on board here.
Jason, was it "necessary" to eliminate the EGR, or did you do that for performance or ease of install? Can the EGR be retained? Did you use the UMI TB as preference...can other 90mm TBs be used instead (already have a Nick Williams on the GTO and will be changing to a Holley for hood clearance reasons)?
Jason, was it "necessary" to eliminate the EGR, or did you do that for performance or ease of install? Can the EGR be retained? Did you use the UMI TB as preference...can other 90mm TBs be used instead (already have a Nick Williams on the GTO and will be changing to a Holley for hood clearance reasons)?
#16
Originally Posted by GoatChs
Late on board here.
Jason, was it "necessary" to eliminate the EGR, or did you do that for performance or ease of install? Can the EGR be retained? Did you use the UMI TB as preference...can other 90mm TBs be used instead (already have a Nick Williams on the GTO and will be changing to a Holley for hood clearance reasons)?
Jason, was it "necessary" to eliminate the EGR, or did you do that for performance or ease of install? Can the EGR be retained? Did you use the UMI TB as preference...can other 90mm TBs be used instead (already have a Nick Williams on the GTO and will be changing to a Holley for hood clearance reasons)?
However, you can do what some have done and just modify the current j-tube opening out to 90mm and retain the EGR. You will also have to redrill the flange to accept a 4 bolt throttle body and use a j bolt.
Here is how Justin did it;
https://www.performancetrucks.net/fo...0mm+conversion
And BigTex;
https://www.performancetrucks.net/fo...d.php?t=358691
Any 90mm throttle body can be used. I used the UMI because I heard it was the best one for the cale operated throttle bodies.
Good luck man.
Thread
Thread Starter
Forum
Replies
Last Post
Corvette454l88
Trucks and SUV Classifieds
19
09-01-2016 01:24 AM
BennyB
GM Parts Classifieds
15
08-01-2015 08:48 AM