Trying to make the most of the last test n tune
Thread Starter
10 Second Club
iTrader: (21)
Joined: Oct 2005
Posts: 377
Likes: 0
From: Cleveland, Ohio
Trying to make the most of the last test n tune Well this trip isn't going exactly as planned. My 17" et street radials had some severe cracks along the sidewall/tread area. So I had to throw on my dark stars for next year with 28" tires (adding nitrous over winter). More sidewall but losing the gearing that was about perfect. (M6, 4.11s, 6700 redline, trapping 121 @6500ish).
Im still on strano springs and kybs (getting vikings over winter). Front shocks are set to 1, rears are set to 3 for now.
Tires are 295/55/15 et street radials, will drop down to 16 psi.
Front sway bar is out. I wasn't getting much for weight transfer before, hopefully this helps.
Im really just hoping to get a 1.7 60ft. I touched a 1.8 on the 17" radials before, but missed a gear on that run. Usual track has crap prep, going to Summit Raceway Park for the first time finally.
Last trip out, only got 2 runs in, first spun pretty bad. Second run I did a better burn out, tried to slip it out from 3500ish rpm, bogged down to under 2000. Finally hooked but it almost died. Im going to try around 4500-5000 and slip the clutch a bit this go around.
I trapped 96.6 in the 1/8 and 121 in the 1/4 before with the 26" tires, how badly are the 28s going to affect me? Any more tips, or changes I could make before I go?
Im still on strano springs and kybs (getting vikings over winter). Front shocks are set to 1, rears are set to 3 for now.
Tires are 295/55/15 et street radials, will drop down to 16 psi.
Front sway bar is out. I wasn't getting much for weight transfer before, hopefully this helps.
Im really just hoping to get a 1.7 60ft. I touched a 1.8 on the 17" radials before, but missed a gear on that run. Usual track has crap prep, going to Summit Raceway Park for the first time finally.
Last trip out, only got 2 runs in, first spun pretty bad. Second run I did a better burn out, tried to slip it out from 3500ish rpm, bogged down to under 2000. Finally hooked but it almost died. Im going to try around 4500-5000 and slip the clutch a bit this go around.
I trapped 96.6 in the 1/8 and 121 in the 1/4 before with the 26" tires, how badly are the 28s going to affect me? Any more tips, or changes I could make before I go?
Thread Starter
10 Second Club
iTrader: (21)
Joined: Oct 2005
Posts: 377
Likes: 0
From: Cleveland, Ohio
Sell the 295/55/15s and buy some 28x12.5x15 ET street bias plys if you plan on staying stick shift, youll be a consistent 2-4 10ths faster in the 60' than radials unless you get really good at slipping your clutch and can afford buying and installing them, radials and a manual trans are not good friends haha, you either roast em on a dump or ride the hell out of your clutch for a lucky 1.6-1.7 pass every now and then between several 1.8-2.0s versus 1.4-1.5 being your awesone runs and 1.6-1.7 being your bad ones on bias plys
Last edited by NW Iowa WS6; Oct 8, 2014 at 01:45 PM.
11 Second Club
Joined: Aug 2005
Posts: 804
Likes: 0
From: Tampa, FL
Down to 16? I used to run 17" Nittos and I would put them at 14psi cold. Used to cut consistent 1.8's with a best of 1.74 at full weight.
I would try to go a little lower in tire pressure. No front sway bar helps a ton. I don't see why you shouldn't be in the low 1.7's to high 1.6's.
-Mark
I would try to go a little lower in tire pressure. No front sway bar helps a ton. I don't see why you shouldn't be in the low 1.7's to high 1.6's.
-Mark
Thread Starter
10 Second Club
iTrader: (21)
Joined: Oct 2005
Posts: 377
Likes: 0
From: Cleveland, Ohio
Down to 16? I used to run 17" Nittos and I would put them at 14psi cold. Used to cut consistent 1.8's with a best of 1.74 at full weight.
I would try to go a little lower in tire pressure. No front sway bar helps a ton. I don't see why you shouldn't be in the low 1.7's to high 1.6's.
-Mark
I would try to go a little lower in tire pressure. No front sway bar helps a ton. I don't see why you shouldn't be in the low 1.7's to high 1.6's.
-Mark
Trending Topics
TECH Regular
Joined: Aug 2003
Posts: 453
Likes: 0
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo