smokinstorm

I tried searching but couldn't come up with exactly what I was looking for. I know 800 RWHP is the new 500 RWHP as everybody and their brother has 800+ to the tires these days but I'm just wondering how many are actually using that power at the track and are running 5's in the 1/8th. If you're one of these do you mind sharing your secrets/combo and what, if any, compromises you're having to make vs a much milder combo. Thanks in advance for anyone that's willing to share.

Rob Petyo

I have a fairly new 1/8 mile list going in the quick list sticky if you would like to be added, post your times in the thread and I'll update you.

smokinstorm

We're not running 5's in the 1/8th mile but I was thinking about trying to get there. I'd like to hear from a few people that have gotten there already to see if the reward is worth it. Horsepower? Mods? Weight reduction? Car still have creature comforts? How much $$ invested to get there? Information like this would be invaluable to determine whether or not it's worth it to try. Right now the car has a big cam and a supercharger but drives around like almost stock and gets great gas mileage. I hate to completely give that up.

ajrothm

I went 5.90 on a very soft 1.48 60' (to keep the diff alive). I was around 840 rwhp at the time. I "could" drive it daily but I'd need a tanker truck of fuel to follow me around...

3600lb raceweight.

I'm sure it will go 5.70s on a 1.30' 60's if it doesnt break the rear end...(like it usually does on hard launches).

I make a little more power now as well, its a little heavier now too since I added a full stereo system.. Its probably 3650lbs now.

js23881

I'm 3650 lb 1999 C5 and drive it every day except in the rain. I run 5.7's in 1/8th. Car is extremely streetable as I run pump gas 93 and idles great no surging. I run a 4L60e, stock drive shaft with stock C5 half shafts. Now diff has been built and 4L60e is level X from RPM. I run low 1.3'a in 0-60. My wheel HP is 1046. I run F1X blower (built LSX 430) and mods to support it. The RWHP is very conservative for my engine and set up as I'm only at 16 degrees timing top end. No issues with heat, or anything else. Tick Performance built car.

smokinstorm

Thanks guys. This is the kind of information I need (and maybe others too?) to help me with decision making. How many other 5 second guys are out there and do you have any regrets pushing such a nice car to this performance level?

ajrothm

If you are drag racing it, its gonna break...regardless of what you put in it. Thats the reality.. These are not the best cars for drag racing. I've had my car to the track about 6-7 times, the first 3 times, it came home on a flat bed.. Then I bought a trailer and started trailering it. I think I've only come home from the track with it running once...LOL

You start going 1.3x 60's, its gonna break eventually.

Its a slippery slope from having a nice, fast street car to nice drag car....You'll spend a fortune and lose some driveabilty the deeper into it you go.

For me, it was the quest to run 8s with a daily driveable car...Its been an elusive goal that I still have not hit...

smokinstorm

What gears are you guys running? I'm running 3.15's now and am wondering if I need to change that out. They seem OK with the Hoosiers that are less than 26" tall but just bought a set of MT's that are over 28". I'm figuring I might have to step up to 3.42's.

Rob Petyo

I'm running 3:73's for 1/4 mile daily driver

100 shot
60 1.365
330 3.905
1/8 6.087 at 103.79
1000 7.917
1/4 9.511 at 141.94

smokinstorm

Was that supposed to be 113.79 instead of 103.79 MPH in the 1/8th? I'll bet that car pulls hard with 3.73's from any speed in any gear.

ajrothm

I use 3.42s. How much power you make, how efficient your converter is and tire height will determine the best gear.... Also how high you can spin it.

I trap around 6900 ish on 28"s with the 3.42s, 151 mph, 11% converter slip.

I'd try it with your 3.15s first and see what it does...you may be surprised. The converter will need to be right tho..

smokinstorm

A new pair of 28" tall Mickey Thompson R compound tires (305/45-17) just arrived and I've got a Yank PY3600 which, according to Dave @ Yank, should be just about right for an attack on the 5's. He did mention that once I get past 950 to the tires he'd recommend sending it back for a re-stall to 3400 or so. I've got too small of a supercharger (P1-SC-1) now to make any real attempt at the 5's. Once I recover from the financial hit of buying the car and the $15K I've thrown at it since purchase I plan to upgrade a few more things and go for it. Motor, though built, was done in 2008 so it's questionable as well at the elevated horsepower levels needed to do what I'm hoping to do. I'm just hoping the reward is worth it hence this thread wanting to hear from others that have gone down this path before me. Since my car is so overweight with all the stereo system components that came with the car and will remain in it, I'm thinking I need close to 900 to the tires to make sure I have a good chance of getting there. Level VII RPM transmission, Level IV dif, C6 torque tube, new PY3600 converter that now reside in the car should all be ready for the next performance level. Just got to get the funds together for a larger supercharger and turn Mayhem Motorsports loose on it again. 5's in the 1/8th is a rather elite group given it's a daily driven car and I can't wait to join you guys in that club. Eventually.

Rob Petyo

n/a
60 1.375
330 4.130
1/8 6.464 at 104.55mph
1000 8.486
1/4 10.196 at 132.10mph

100 shot
60 1.365
330 3.905
1/8 6.087 at 103.79
1000 7.917
1/4 9.511 at 141.94

(recent mustang dyno showed 436 rwhp n/a) add the 100 shot which was just track tuned. we still need to tune for N20 on dyno

looking at past timeslips i do believe the 103.79 in 1/8 was misprinted and should read 113.79mph which makes sense

I have since upgraded the trans main shaft and axle shaft, etc. Installed a Holley Dominator V2 to control fuel/air/spark that is piggybacked on the OEM computer - want to work my way to a 300 shot ... (maybe)

this is my 04 LS-6 Stroked 382 car not my stock bottom 346 car, which recently just put down better numbers (n/a) on the dyno and also will soon spray 100 shot that I hope is faster.

smokinstorm

These numbers are phenomenal for the amount of power you have. Does the car weigh less than 3000 pounds by any chance? We have more power than this and couldn't run those numbers with a 20 MPH head start.

Rob Petyo

Thanks !

That car has to be over 3000 lbs with me in it, it still has the original brakes.. that car recently put down 436 rwhp on a mustang dyno - add the 100 shot and it is very efficient

Actually, my stock bottom 346 LS-6 put down better numbers on the dyno then the stroker recently did with both more hp and torque, it does have a bigger cam. I haven't sprayed that one yet - it is also setup to spray (NANO) and is currently .03 sec slower than the 382 shown above, it's gone 10.22 compared to the 10.19.

With my 1998 car (SBE) car I wanted to run closer to a 9 sec run n/a before hitting the N20. I think it should in the fall then I'll shove a 200 shot down it and hopefully stay together. It should, everything is pretty much refreshed.

smokinstorm

Picked up the car from the shop today. Not earth shattering progress but they did find a boost leak and fixed it so the horsepower went up. Lots of maintenance being done also. We're still less than 800 to the tires but making progress every trip to the shop. I did some calculating and adding about 50 more horsepower and taking off 140 more pounds (we're at a heavy pig 3740# raceweight now) should give us a shot at a 5.9999. No guarantees of course but the math works out that way for us given what we've run with the previous horsepower. Unfortunately it's gotten too hot now and it won't likely be below 90 degrees when the track is open for at least the next 4 months here. We're shooting for everything coming together by November. Gonna keep modding as money avails itself. We're going for it. Thanks for the insight everyone. js23881, I'm still hoping we can hook up at the track one day. I'm dying to see your car run.

oh1vette

smokin, I'm sure Jay and the boys will get you there

smokinstorm

Absolutely, they're just flat out amazing. And the fact that they really care means more to me than can be put into words properly. Plug for Jay @ Mayhem Motorsports here. If you're within 500 miles of Raleigh, NC and want work done on your LS powered vehicle, you owe it to yourself to give them a call before deciding on who to do the work for you. They're going to do the drag brakes up front, 15" Mickey Thompson ET Drag skinnies on 15" Weld RT-S rims and a fancy 5 pound Lithium Ion Battery in a couple of weeks. That's another hundred pounds(ish) off the car so it's slowly but surely getting back to within a few hundred pounds of what a stock one weighs. I've got this wild dream of having a 3500# raceweight but that's tough when you start out at well over 3800# like we did. Might be looking into doing something with that itty bitty P1SC-1 head unit as well. Big power to be had from upgrading that as long as the motor holds. I've got to see how close we are to that 5 after the weight reduction from the brakes and battery before deciding on which area of the car to attack next. I'll post updates as we make changes.

Stroker87

Jesus! i'm looking to crack 6's in the 8th and 10's in the 1/4, 1.50 60ft felt awesome to me whats a 1.30 60ft feel like lol

my car is low 500's rwhp right now should be 550 or so once i rejet my n2o and the car is moving pretty good but traction is a problem how are you guys putting down 800+ rwhp???

smokinstorm

I'll have to let some of the 800+ guys share their secrets with you but at 750ish we roll the car out of the hole at part throttle about a half car length and then call on the motor. If we call too aggressively it spins. Finding that sweet spot is both the hard part and the key to a good pass. We're running Hoosier 335/35-17 drag radials. I've heard from reliable sources that switching over to 15" rear tires makes all the difference in the world. Too expensive for me right now though. So much to do......so little money.