I completed the LSx swap into my 3rd gen and while its alot faster than the old 305, its still not quite there
Based on this setup in my 91 GTA
Simple tray fabbed
Trying to get the position so the hood will close
Basic wooden bracket. Wood is easier to shape than steel and is quite a bit stronger than cardboard
Just barely clears the hood
Steel bracket cut, setting square in all directions and setting pulley alignment
Angle adapter and scrap tack welded on to keep everything square
So far so good
Making sure the charge pipe will fit still
Beginning to shape the collector
Ground down several times looking for holes fixing them as I found them
Water test for the invisible leaks
Building the rear brace and trimming things down
Relocation bracket fabbed up
My original intake fits perfectly. Had to go billet rails to clear the feed fitting
Building the tensioner bracket. Stock tensioner may not be stiff enough or have enough travel. Ill figure something out if this gives me any trouble
Belt measured and alignment test. Hope it quiets down with an intake system on there
Ready for a tune
Blower is an eaton M90 off an old T-bird. Similar displacement V8 retrofits saw 5-7psi off a stock pulley single. 5psi would be perfect for this engine. I could possibly step the pulley down one size and still be within the RPM band of the M90 using the stock LS1 balancer. Due to the locations and general shape, an intercooler could be installed later if I felt it was necessary. For not its non-IC. Ive been battling between BOV or SC bypass valve systems for a while too. About a week ago I read an article about upgrading stock crappy bypass valves to a bypass system using a BOV, so theres a BOV in my system. To switch, I simply run a hose from the vent to a port to somewhere in the intake before the compressor. Id rather not to keep heat under control, but I will if the BOV sound gets annoying
Anyways, figured some people wouuld enjoy a build thread
How are you cooling/lubricating the blower? Mad respect Pocket, I knew you were good, but damn.
89' Mustang Coupe LSX/9.50@144 SOLD
91' Mustang Coupe LSX/9.20@155 SOLD
89' Camaro Hardtop LSX/11.51@123 got my Mullet back 13' NMKOTS #3
TX2K12 Street Class Winner
12' All Out Call Out Runner up
That's pretty cool man! I used to have a Thunderbird Super Coupe that this SC came from and it definitely was not that loud. I hope it's just something to do with the more open intake and not something more serious inside the unit. You'll want to look into an intercooler for sure, those M90s throw out some heat even with a stock pulley. They don't call them Heatons for nothing haha.
Keep us updated though, that's pretty awesome and a very cheap setup! As someone above me asked, have you gotten any power numbers yet?
1994 Pontiac Trans Am- 6.0 LS/T56 swap. L92 heads, Kooks LTs
3.73 Motive Gears, Detroit Truetrac, K & N CAI, dual exhaust with Manaflow mufflers, BMR lowering springs, BMR panhard rod, Nitto DR's, Hotchkis STB.
2002 Subaru WRX- Stock Daily Driver
THat's some awesome old school hotroddin goin on!!!!!!!!!!!!!!!!!!!! I get sick of seein people takein their crap to shops and spending a pile of money on it....Your gonna need 2 blowers for that ls motor for sure.
__________________ '99 SS Camaro #3789 6m hard top, crate ls6
new #'s 417whp 395wtq on a Dyno Dynamics
new best 10.9 @ 129 n/a
i agree, this is the ''roots'' if you will, take something from something else and make it work for you. mad props to this guy. makes me want to scourer the junk yards and find me two little baby Eaton's!
__________________ 1970 cadillac sedan deville "sinister " build just starting.
04 lq4 out of van, factory pcm with speed density tune planned, tick stage 1, v2 turbo cam, tick springs, hardend pushrods ans ls2 timing set, ported factory oil pump, arp headstuds and ls9 gaskets.
Bw s475 turbo, truck manifolds 2 1/4 hot side gonna fit the 5"dp!
4l80e built with revmax 3600 stall billet converter, 29x gear.
Single M90 for this engine, twin for the racecar. If I need to go bigger, a tray and collector extension is all thats required to fit a M112 on there. I havent ported this case yet either, alot of power can be had from a proper outlet port job, most of which Im not interested in