EVL JAKE

Last Friday (5/18/12) I headed to the track again after all the mods. I had an LPE GT-11 cam installed, TSP headers and X-pipe, Halltech 103 CAI, SLP U/D pulley and a Yank S/S 3600 installed. As some of you know I was kind of disappointed by the HP numbers. It made 392 at the wheels. I was 2nd guessing my cam selection but I decided to see what happened at the track before I passed final judgement. Friday was a street race/clocks off type event and I drove there straight from work so I had my DR's mounted already. I pulled in the parking lot, teched, aired the tires down to about 20 psi and hit the staging lanes. After a 10-15 second burnout on the worn 275/40/17 ET street radials I ran my best pass of the day. 11.64 @ 119.2 with a 1.645 60' (slip below). Not bad at all since everyone said I would run 11.90's and I was figuring on 11.70's. The rest of the night the 60' and ET went down slightly but the car stayed dead consistent running a worst of a 11.69 and 1.70 60'. I tried a couple different launches but ended up with the same result.

My question is what do you guys think of the 60'? Can a I do any better? I would love to see a 1.5 or better. I think I may have been spinning at the top of the 60' mark.

My new plans are hoosier DR's, GTO spares and eventually an LS3 top end. My new goal is 10's N/A, I'll keep the bottle off for a bit. I think in fall air and with GTO spares I could hit 11.3 as it sits so a 10.9 is possible with the LS3 top end. As always your opinions are greatly appreciated. I'm in love with this car.

stanger383

I run the hoosier DRs and all my burnouts are about 5-8 seconds in 2nd gear around 5000. I don't feel doing a 15 sec burn out is necessary. My car is very consistent 1.42-1.43 60' when I first started running it they were 1.48-1.49 until I found the best launch. It will take more runs for you to find the sweet spot. I get my best launches from stalling as high as I can hold. Others have said they get better by leaving just above idle and flashing. What works for you will have to be found by YOU.

Neumonic2002

If you are running the stock intake manifold upgrading to a Fast 102 will be an easy mod worth a couple tenths assuming traction with the new Hoosiers. Hinson is a good vendor to purchase from plus you can sell your stock intake for a couple hundred bucks easily.
You will be hard pressed to find 20 + rwhp/tq at that price point.

Congrats on the times, sounds like you were having a blast!

dennis50nj

nice

Justasheet

I think you need new DR's. Your 60' is a little high with that setup. How was the track prep?
Jeff

EVL JAKE

I may have been a bit generous on the time I took. I started in 1st, shifted to 2nd and kept it going for a few seconds. Maybe 10 seconds at most. I experimented a little with the lunch. I went off idle, brought the rpms to about 1200-1500 to take the slack out and stalled as high as 2500. All resulted in mid-high 1.6 60's.

I agree the intake sucks. I can't justify spending over 1K and then have my stock 243's be the restriction. I also can't swing aftermarket heads. I think an LS3 heads and intake swap will be the best for me.
Thanks, this car is a lot of fun at the track!

Thanks.

I'm thinking I can get it down a bit. The track was biting great out of the gate but I know I felt some spin on a couple runs at the top of 1st gear. The time slips didn't reflect that so maybe I was spinning every time and just couldn't feel it. I agree with needing new tires. I bought these used and they were a little more than half worn, there is even some dry rot in the treads on the outer edges of the tires. I got them cheap enough just to see how I could do.

Justasheet

It's amazing what a new set of tires will do. Your setup sounds great. I just switched to a 3600 stall and am waiting to go to the track.

I put on some Texas Speed Stage 3 heads with my Fast 102 and I gained almost 5mph in my et.
Jeff

EVL JAKE

I hoping tires help. I'll be ordering a set of Hoosier DR's right after I order M&H front runner radials.

sebaj

Decent numbers! I had a similar setup in my M6 4.10 geared 2005. I went with the G6XE cam (specs close to the GT-11) and LS3 heads. With Hoosiers I was able to run 11,2@124, 1,61 60'. Since then I switched to the new TSP heads, went 11,07@126,7 in 2000 DA. Low 11s, with a good 60' even high 10s can be done with a good set of heads and some practice even with those cams.

HOXXOH

Unless you need to drive to the track, I'd advise the bias ply M&H. They're about 7-8 lbs lighter than the radials. Weight is the reason for the wheel/tire change, so why take half-way measures.

BTW, Hoosiers don't last long if you drive them on the street.

Chances are pretty strong that the tire/wheel change alone will get you below 11.50.

EVL JAKE

Awesome, sounds like I'm on the right track. I really like the fact that it doesn't sound like it has a cam.

I've been going back on forth on bias plys especially since I haven't ordered the front runners yet. I would then go with a full bias ply set up but a lot of people say that's better for a manual car.

FloydSummerOf68

11.3 is definitely doable in good air.

My car went 11.29 with 389rwhp and a 1.65 60'

Not having a FAST is holding back a lot of power on your car.

Badd LS6

driver mod..

hehe <3

EVL JAKE

Ok guys, what am I doing wrong?? I added an LS3 top end and picked up 41 rwhp. The car now makes 437 rwhp/ 404 rwt. I went to the track on a fresh set of hoosier dr's and could only cut a best 1.67 60'. I tried flashing and stalling and nothing worked better. With that much torque, sticky tires and a 3600 stall I was expecting 1.5's.

dennis50nj

GET IN TOUCH WITH STANGER

subfloor@centurytrans

Something's definitely not right - I've gotten 3 different cars into the 10's all with an LS2 and making less the 450rwhp:

- 411rwhp went 10.863
- 440rwhp went 10.850
- 430rwhp went 10.863

What size Hoosiers are you running and how much air pressure? Do you have Torque Management turned off in your transmission? Do you have any scans of your runs? Do you have any idea what your air fuel ratio is at WOT? Do you know where your shift points are? Are you staging deep, shallow or do you just casually pull up until both bulbs are light up? How much (if any) wheelspin are you getting when you launch the car?

These are just some of the potential areas of improvements so feel free to PM me if you'd like to talk more offline.

ctusser

I'm thinking porting the 243's would've worked better with that cam for higher port velocity to keep it stronger in the Low-mid range, as that's not a top end cam. And as big as the LS3 heads are, will mostly shine in the top end on a smaller cube motor.

If your gonna keep those heads you'd get much better results with a little more cam and a 4000 stall IMO, but you may have something else going on as well.

HOXXOH

What was the DA on each of those events? Higher DA = slower times, launches included.

I ran in full street trim with street tires in about 600' DA and cut a 1.74 60' while somewhat spinning and producing a 11.45 ET a little over a year ago.

Last week I ran in full street trim, but with my Hoosiers in 3800' DA and cut a 1.69 60' resulting in a 11.64 ET.

See the difference DA makes?

If you don't have a calculated DA compensation standard to gauge your performance, you have no method to determine what works and what doesn't.

EVL JAKE

Thanks, will do.

Thanks, that is the results I'm looking for. PM sent.


I think a new cam is in the plans for next year. The problem with porting 243's is the intake still needs to be changed. I'm sticking with the 3600, I have personally seen 2 A6 struggle and have issues with stalls 4K or higher.

I know this first hand. Before the heads I went to the track in early may and ran consistent 11.60's, one month later it was hot and the DA was high and I could only manage 11.90's. From what I had heard the DA on my last pass was about 1200. I have no doubt in the fall when DA is close to 0 the car will fly but the 60's just seem about 1/10 too high.