Street9s
Proven Member
- 64
- 15
- Apr 26, 2017
-
Pasco,
Washington
Greetings from Eastern WA. Recently purchased my first DSM. I've known about the potential of these cars for a while now and finally got my hands on an early '92 with the 6/4 bolt combo.
I bought it with a lot of mods done to it by Boostdriven. Scalia pistons, scatt rods on the bottom end with 8.5 CR, and a Supertech combo in the head, Early BC 272 cams with some PNP work done to it. Turbo was an HX-40 with the BEP .55 housing. It also came with ECM link already on speed density. I've recently installed some FIC 2150cc injectors to allow the fuel system to flow more. Pump setup is two Walboro 255s in tank. I'm pretty excited for this build.
The car dynoed 407 AWHP @ 25psi and 14* of timing with two 225cc meth nozzles. A figure that I was somewhat satisfied with. As I attempted to up the boost I ran into some issues which appeared to be excessive crankcase pressure. As soon as I got home I performed a boost leak test and discovered it was a injector seal leaking.
My goals are to have a car capable of 9's on the strip, and still be streetable.
Just yesterday I was doing datalogs and starting to push the motor a bit. E85 recently went in the tank and I was making around 36psi @ 19* of timing up top. Personally, like to take two logs for consistency. On the second 3rd gear pull I experienced something similar to a coupler popping off. Turned out to be the turbo.
I believe the cause of this was too much backpressure from the small BEP housing. I've already ordered another HX-40 with upgraded bits which is supposedly capable of around 90 lb/min. I'll be hitting the dyno once the street tune is done to see what it can make.
Ideas and criticism are always welcome. If it can make me more power or you have something I need to be learned on, please let me know.
I bought it with a lot of mods done to it by Boostdriven. Scalia pistons, scatt rods on the bottom end with 8.5 CR, and a Supertech combo in the head, Early BC 272 cams with some PNP work done to it. Turbo was an HX-40 with the BEP .55 housing. It also came with ECM link already on speed density. I've recently installed some FIC 2150cc injectors to allow the fuel system to flow more. Pump setup is two Walboro 255s in tank. I'm pretty excited for this build.
The car dynoed 407 AWHP @ 25psi and 14* of timing with two 225cc meth nozzles. A figure that I was somewhat satisfied with. As I attempted to up the boost I ran into some issues which appeared to be excessive crankcase pressure. As soon as I got home I performed a boost leak test and discovered it was a injector seal leaking.
My goals are to have a car capable of 9's on the strip, and still be streetable.
Just yesterday I was doing datalogs and starting to push the motor a bit. E85 recently went in the tank and I was making around 36psi @ 19* of timing up top. Personally, like to take two logs for consistency. On the second 3rd gear pull I experienced something similar to a coupler popping off. Turned out to be the turbo.
I believe the cause of this was too much backpressure from the small BEP housing. I've already ordered another HX-40 with upgraded bits which is supposedly capable of around 90 lb/min. I'll be hitting the dyno once the street tune is done to see what it can make.
Ideas and criticism are always welcome. If it can make me more power or you have something I need to be learned on, please let me know.
Last edited: