Thinking about getting some LE2 heads and cam and a D1SC procharger kit. Stock bottom end. Current mods: headers, off-road pipe, borla cat-back, 3.73 gears, upgraded tongue converter (automatic car.) Obviously the car will be dyno tuned after all this is installed. My question is what kind of power numbers and 1/4 mile times do you guys think i will be getting out of this setup?

 

A lot, probably more than your stock bottom end can take.....

Go forged.

 

Your stock pistons and rods will give up the ghost before you can put down a solid number. Stock cast pistons do not like boost.

 

Assuming a nice low timing number, fat AFR at WOT, and a cold IAT, I can see you doing 500whp for awhile. Depends on how hard you lean on it and how much risk you are willing to accept.

 

Agreed

 

I've had a couple of friends who have done setups like this.

One had LE2 heads, GM hotcam, M6 tranny, 42lb injectors, headers, bolt-ons, exhaust, etc. and a ATI P600B pullied for around 5psi and a dyno tune. Made 470-something and lived for at least a couple years, but he seldom leaned on it hard and never put it on the dragstrip to my knowledge. Pretty sure the car was still running fine when he sold it years later.

Other fella had a stock longblock with some sort of Crower cam (230/235-ish), LTs, exhaust, 42lb'ers, M6, 12 bolt, and S-trim Vortech pullied for around 6psi, though it's made close to 7 on the dyno. He runs alky injection to try to keep everything safe and it's made right around 490rw. The car has seen a few dragstrip passes and has been mid-11s at 124 or so. The car sees relatively few street miles, less than a thousand per year, and he only leans on it hard occasionally and never in hot weather. Probably why it's going on 5 years with no real issues.

If you're going to put boost to a stock LT1 shortblock, you are playing with fire. If you take all precautions, run some sort of charge cooler and don't run the car hard on a regular basis, it may live a while. Of course, it could also break a ring land first time you turn it to 6k under load. You just sort of have to live with that and be ready to do a rebuild when it lets go.

 

I say just supercharge it and give it hell, then when it blows do the bottom end plus the heads/cam lol.

 

Supercharge it, blow it up, new $400 stock longblock from Craigslist, repeat. I wouldn't put $1300 LE2s in harms way though, because when a piston breaks apart you'll trash the heads.

 

Good for it.
Have fun
It breaks, you fix it.

 

355 P1sc 8lbs 12 bolt 550hp, 12.50s 1/4 mi. full weight.

dynaspark too btw.

 

550hp and 12.50 1/4 mile is terrible. I'd set my car on fire if I spent all that money and couldn't beat a bolton only car.

 

Hopefully it traps mid-high 120s

 

Lol. Exactly what I was thinking...... Or maybe that was a troll post

 

Looks like Supra times right there.