10secZ28

iTrader: (6)

what kind of timing do you guys usually run on a 250 hit? im at 19 on race gas and i think its iffy

ShiznityZ28

iTrader: (11)

we pull 11 for a 250 our base is higher than most. 18-19 is a good start.

ShiznityZ28

iTrader: (11)

I see your in Belair. give us a shout if you need some help track tunning that thing.

10secZ28

iTrader: (6)

hey thanks man, i used to deal with jeff a while back, i have matts old car..... ive met you a couple times. I just wasent sure if i should back off a couple more degrees

ATVracr

iTrader: (5)

What does it run? N/A and on spray?

Cold plug and race gas will help you with a bigger tuning window.

Mike@HSW

iTrader: (6)

ya whats the timing on the motor. Id start by pulling 11-12 and going from there. Since your running straight race gas and depending on your plug, you'll probably be adding back a bit more.

10secZ28

iTrader: (6)

we just put the car back together this year so we are hoping to make some passes at capital this fri, the dyno we put the car on i think was a little happy but it made 480 to the wheels on the motor and 765 on the bottle.... that just seems a little high to me

10secZ28

iTrader: (6)

mike it has 19 degrees in it now and the plugs are # 8

10secZ28

iTrader: (6)

sorry i misunderstood you, im not exactly sure how much time we had in it n/a

ATVracr

iTrader: (5)

I'd pull 2* more from your dyno tune ...a 2 or 3 second dyno pull builds alot less heat than a 9-10 second pass down the track.

Pump gas?

10secZ28

iTrader: (6)

thats more or less what i was thinking, and no it will see only race gas on the spray for the most part

ATVracr

iTrader: (5)

Good deal.
Make a 1/8th mile hit or 2 and check the plugs out.
Since you cant adjust the cyl. timing like we can get yourself a set of tr9's and if you have a hot cyl. stick one in there it will help.

Good luck!
Post up you have any other questions.

10secZ28

iTrader: (6)

thanks man i appreciate it, it went some 10.00s last year on a 150 hit so im hoping on a 250 it could see some 9.50s or 60's, and last year it had a stock maf, tb, and an ls6 intake, this year we swapped in a 92mm tb and a vic jr

ShiznityZ28

iTrader: (11)

We don't deal with jeff anymore...

ShiznityZ28

iTrader: (11)

250 on a 370 should go low 9's for sure.

10secZ28

iTrader: (6)

haha so ive heard..... ive been workin with jason alot

WE TODD DID

iTrader: (2)

Timing on motor doesn't have a thing to do with the timing on the spray. If his engine likes 40* of timng, and he pulls 12, he would be spraying 250 on 28* of timing. That won't work.

One of my personal vehicles, runs at 35* total on motor, and on a 175, I back it down to 18* total. On both systems, it is at 5* total. That is what the engine likes.

camscam02

iTrader: (21)

19 seems like an awful lot to me. I guess check your plugs and got from there. I would think around 15 would be in the ball park area.

good luck.

ShiznityZ28

iTrader: (11)

What cam do you have in it. It would be hard for ti to work well with a ls6 and vic jr. you need 8( or more) degrees more exhaust on that jr with nitrous than the 6. Hit me with a PM if you want.

BlackScreaminMachine

iTrader: (17)

Only run as much timing as needed, checking plugs and putting the best gas in def helps that window. Unfortunately it maybe too late if you chance it. I'd start progressively and go up 1 deg at a time until the plugs tell you to stop or show what is optinum.