You should just race him and find out, and stop with the guesstimates. Most LS1 guys are full of s*** any way.

 

.... wow. Dyno's are pretty precise instruments, there's no opinions to the numbers.

 

Here is my mods and times:

1) ported my own intake, everything else stock 13.6 @102 even stock airbox!
2) Added hooker longtube headers, exhaust cut-out, ripper shifter, msd wires and a shift light ran 13.2 @ 106MPH on street tires and 13.0 at 107mph on ET streets.

I smoked stock LS1's all day at the track to the point people were saying I had ported heads or a cam or something. LT1's are very capable as well as LS1's. A modded LS1 is a handful and you will need to dig deeper to take one out but it can be done. All in all, as long as it's in the Chevy family I don't mind losing a race.

 

LS1 cars respond extremely well to the bolt on mods. I don't see where 325 is a long shot. I gained .9 at the track and 6 mph before I did my gears, which gave me another .2 and 2mph. Granted my car had a blown/clogged cat before hand.

Just run him. Street races almost always come down to the driver anyway. He could spin coming out and you could hook or the other way around. I'd expect him to win right now since the only two power adding mods you have are the CAI and cutout. If you want to beat him go with the headers, exhaust and tune. I'd think that would give you a decent chance.

 

I would think a cold air intake, longtube headers, tb bypass, 160 stat, drag radials, 410 gears, and a PCM for less tune would do it, the mods will put you at around 315 to 325 rwhp, the tires and gears will put you way over the top, he will have to do all the bolt ons to keep up. Most of this stuff you can buy used on this forum pretty cheap, except for the rear and tune. The rear gears and install would be around 700.00, the tune about 175.00.

 

I beat a couple LS1s from a dig with just catback, CAI, tune, and nitto drag radials. If it is M6 vs. M6 a lot of it depends on the driver.

 

I would get a catback exhaust first.

 

I think im going to do 4.11 gears and headers,i found a shop that will do my gears for $250(gears and labor)and my mechanic will do the headers for $100bucks,im thinking of getting some shorties,i should be able to take him with this mods.I 'll post my new times soon!

 

Dont be doing headers unless you get your catback done up too (Unless you ride around with your cutout open all the time... in that case chop off your muffler lol...)

 

If you can get a shop to do gears for $250.00 (gears included) and a mechanic who will install headers for $100.00, do not under any circumstances, bend over in the shower. JMHO

 

How do you get gears for $250 including labor?? That sounds like a deal, depending on the brand of the gears.

Anyway...start modding!

 

best i found was a kit for $420, gears, T/A cover, seals, bolts and fluid. thats not installed.

and for someone to only charge $100 for install of headers seems cheap, do that!

 

sounds like a crazy enough deal... all I can say is that I'll never let another man touch my rearend ever again. The first guy that did my rear really messed things up. It was tight for a while, then it felt really loose.... and then When I took the car back to him he acted like it was myfault things went bad. Be careful who you let work on your car... unless it's a true friend or a relative.... I would be weary.


Let me also mention that gears alone gost 200 and insall kits are another 120 or so.

250... installed with parts is fishy...

 

Slit his tires. A nice knife is only like 20 bucks.

 

You shouldn't let another man touch your rearend anyway----unless you really like him.