Turbosmblk
Well-Known Member
Figured I’d post my combo up so everyone can see things I’ve done and give an idea of what they can do and what they SHOULDN’T do. First off this is all in a 74 challenger, yes I know it’s not an A but the ebody forums are kinda dead and the purist snobs would say I ruined a car anyway. This car has been in my family since 1978 and spent its entire life out of the weather so it’s in really good shape. My goal with this whole thing was to build a drag and drive car, get 15-20mpg, not cut anything, and not smell like fuel every time I drove it.
So the turbo was a eBay GT35 I had laying around from a prior project that never saw fruition. I knew it was “small” but thought it’d be fine and get me some experience. (Looking back the turbine was way too small even for a gutless 318). I started collecting parts with the intention of running it on Holley terminator X and a dual sync distributor. The more I researched I found out I could use a Jeep cam sync and a factory magnum crank sensor with the reluctor modified for single pulse per fire(I have a pic showing where I welded up 4 of the air gaps in the reluctor as the factory 8 was too many) . This was great because it meant parts would be easily accessible if something failed 1000 miles from home. I purchased an engine harness from HCR innovations for a 58x LS engine (cam and crank reference are 5v like Chrysler stuff, I did have to put the appropriate connectors on the harness and can provide part numbers for NEW connectors not junkyard stuff) and that’s really all that’s needed to make this whole deal run other than a leash 8 circuit relay board to control fans, Transbrake power, lockup, fuel pump etc.
I built a A500 with a cope Transbrake valve body and Hughes converter so I could enjoy OD and lockup while running these events.
The motor is a 98 5.2 out of a Jeep. It has a driver side truck manifold and a Jeep passenger manifold. I cut both ball and socket ends off and welded vbands on. Stock camshaft, Indy “x” heads, and a efi super victor with a Holley elbow. Hot side was 2” into a 2.5” merge. Non intercooled and running E85. I originally started with a .68 t3 flange turbine housing. It lit off VERY quick. Like 2000rpm it made 5psi. I swapped to a 1.06 turbine housing and picked up about 5% VE without changing anything else and spool characteristics didn’t change a bit. This was indication #1 that the turbine side was severly undersized even for a 200hp motor.
So the turbo was a eBay GT35 I had laying around from a prior project that never saw fruition. I knew it was “small” but thought it’d be fine and get me some experience. (Looking back the turbine was way too small even for a gutless 318). I started collecting parts with the intention of running it on Holley terminator X and a dual sync distributor. The more I researched I found out I could use a Jeep cam sync and a factory magnum crank sensor with the reluctor modified for single pulse per fire(I have a pic showing where I welded up 4 of the air gaps in the reluctor as the factory 8 was too many) . This was great because it meant parts would be easily accessible if something failed 1000 miles from home. I purchased an engine harness from HCR innovations for a 58x LS engine (cam and crank reference are 5v like Chrysler stuff, I did have to put the appropriate connectors on the harness and can provide part numbers for NEW connectors not junkyard stuff) and that’s really all that’s needed to make this whole deal run other than a leash 8 circuit relay board to control fans, Transbrake power, lockup, fuel pump etc.
I built a A500 with a cope Transbrake valve body and Hughes converter so I could enjoy OD and lockup while running these events.
The motor is a 98 5.2 out of a Jeep. It has a driver side truck manifold and a Jeep passenger manifold. I cut both ball and socket ends off and welded vbands on. Stock camshaft, Indy “x” heads, and a efi super victor with a Holley elbow. Hot side was 2” into a 2.5” merge. Non intercooled and running E85. I originally started with a .68 t3 flange turbine housing. It lit off VERY quick. Like 2000rpm it made 5psi. I swapped to a 1.06 turbine housing and picked up about 5% VE without changing anything else and spool characteristics didn’t change a bit. This was indication #1 that the turbine side was severly undersized even for a 200hp motor.
