If you had no $ limit for s street legal LSJ:

A. How would you build your LSJ supercharged motor for max horsepower on the duno?
B. How would you modify the rest of the car to handle the power?

Why not dream it? This is all I can think about sometimes so I’m curious of what you think

 

well you can ask poppa gun, he has done alot and im surprised the balt is still street legal lol

 

throw in a turbo WITH the supercharger. lol

 

turbo it, build the motor/tranny, and make it rwd...

 

well IF I HAD THE LSJ i would prob to what victory red is doin, or take it to a very reputable company and plan out what would need to be done

 

Im going with B first then the garrett alpha kit with smt-6 after im done building the motor and have the full handling/brakes/tires i can get

but if it was all drag prob mostly A then just make sure it was safe enough for a straight line

 

If I had an LSJ with unlimited funds....

1. All the GMPP internals possible
2. Lower Compression Pistons
3. Hahn GT35 Turbo Kit
4. KW Coilovers
5. All the other misc. suspension and braking goodies

All that plus the usual intake, exhaust type stuff I'd be pretty damn happy.

 

Why bother with the LSJ in the first place?

Drop an LS9 in it, make it RWD, and call it a day.

 

with an lsj id have the goal of high 11s. still supercharged, just a well built lsj with a twinscrew. shooting for 11s would still keep a very streetable car and keep it reliable.

 

First I'd rebuild it with ecotec's 'how to 300+ hp guide', then i'd throw a twinscrew on, followed by meth injection and all other cooling and exhaust mods. And of course all the suspension mods at the same time. ^^^^ high 11s def a goal i'd set as well

 

uhmm,buy the caliber and dump 10g into it

 

twin turbo built LS1....GIANT slicks....RWD.....8's easy

 

Yes.....tube chassis, rear wheel drive, tubbed out, supercharged V-8.

 

He said Street Legal LSJ

 

I like that idea, I don’t know of anyone here that did all the internals by that guide

 

no need to speek an ungodly amount of money... just a couple things need to be changed....

drop compression to low 8's.... swap to turbo... increaese fuel.... done

 

artificially inseminate the lsj with the 2jz. Result: 2jz offspring that destroy worlds based on their raw power.

 

uh full bolt on and internals. turbo. AWD. suspemsion. nitrous. misc. i would totally make it a sleeper tho. nothing, no wing, no tint.

 

tvs 1320 blower
bar and plate after cooler {modded intake manifold}
72 lb hr injectors
aeromotive fpr
aeromotive a1000 pump
aerquip fittings
-10 supply line
-8 return line
stage 5.9 axles
exedy twin disk
hks 280 grind cams
ported head
1mm+ valves
diamond 10.0:1 pistons
pauter rods
polished crank
fully balanced rotating assembly
direct port 150 shot
HKS f-con V-pro flying lead system
1 3/4in primary long tube header with a burns collector
3 inch exhaust
canton heat exchanger
higher volume heat exchanger pump

im sure i can think of more later

 

Well, let's see here, I assume to keep the LSJ as a true LSJ I'd make the assumption that you keep the M62 and the stock block, and since using nitrous on the road is not legal I'll pass on that too. With that in mind, I'd:

1. Weight reduction (say bye-bye to the carpeting, fog lamps, A/C, heater, stereo/speakers/sub, power windows/locks, spare tire/toolkit, replace stock steering wheel, remove associated steering wheel electronics). Gut the interior and replace front two seats with 5-point Spaarco racing seats. Remove the back seat entirely.

EDIT: Almost forgot about removing the airbags

2. New parts, RWD conversion, and balancing the bottom end:

- Forged pistons @ 10.5:1 compression
- Replacement piston rings (Stock #2 ring only holds to 310-ish WHP according to GM)
- Lightweight SPEC flywheel
- 2.6" pulley
- More aggressive cams (no idea where to get them, geez I'm a noob...)
- Custom mandrel-bent, coated H/DP/E w/high-flow cats
- Forged rods and stronger springs (higher rev limit)
- Massive injectors/fuel pump (no clue on how big till I did the math)
- Return-style fuel system (no more #4 piston blowouts)
- Custom short-ram intake/hood scoop for some ram air
- Lightweight crank and drive shafts
- Icebox intercooler/meth injection
- Balance shafts (stock ones suck, no clue on brands though)
- Replacement valves (again, no clue on brands)
- Roll cage to stiffen up the interior (esp. after gutting it)
- Poly engine mounts
- Custom 6-speed transmission, longer first gear, tighter ratios up top.
- The best, most grippy clutch I can find (such as the SPEC Stage 5)
- 17" lightweight, custom wheels w/DR's.
- Coilover suspension
- Cross-drilled/slotted brake rotors, steel lines and ceramic pads
- Custom axles
- And of course, a tune

I have absolutely no idea how much WHP that's good for, but I'd love to drive it. As for brands, I couldn't say till I actually got down to ordering the parts. I'm relatively new under the hood compared to some, or even most people here, so feel free to pick it apart at your leisure

 

tvs 1320 blower
bar and plate after cooler {modded intake manifold}
72 lb hr injectors
aeromotive fpr
aeromotive a1000 pump
aerquip fittings
-10 supply line
-8 return line
stage 5.9 axles
centerforce clutch - Have it
custom grind grind cams (more agressive than 280s) - Have them
ported head - Have it
1mm+ valves - Have them
CP 9.5:1 pistons - Have them
crower rods - Have them
polished crank - Have it
fully balanced rotating assembly - Have it
100-150 shot
HKS f-con V-pro flying lead system
1 3/4in primary long tube header with a burns collector - Have it
3 inch exhaust - Have it
cobra heat exchanger - Have it
higher volume heat exchanger pump
rwd conversion with 9" ford rear end

With all that stuff I'd die a happy man

P.S. I just copied and pasted Area 47's post and changed a couple things

 

That is where I originally started but things morphed as we started rolling along.
Now I will end up having done evrything and the car will be streetable as well as going through a provincial government inspection.

 

cam, cheater!

 

What you gonna do about it? Oh thats right... GET PWN3D ON FORZA!!!

 

bring it on!

i'll actually bring out the fast cars instead of the average cars