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Yeah the rear 295/65/15 MT DRs are a foot wide on my 15x12s. Love the traction on the street.
I think it's the tires and will have the tire shop check the fronts but if that does not pan out I will remove DS have VRN check balance, and before that check pinion angle but it was set a year ago.
Yeah the rear 295/65/15 MT DRs are a foot wide on my 15x12s. Love the traction on the street.
I think it's the tires and will have the tire shop check the fronts but if that does not pan out I will remove DS have VRN check balance, and before that check pinion angle but it was set a year ago.
Are there another set of tires you can throw on to try, from a friend perhaps?
I dunno... I do have a set of Prostars with tires but one has a bubble in the sidewall lol.
That is a great idea though about just throwing some other wheels/tires on. Let me see what local friends have around.
But when I have RAS check balance they'd let me know if there something going on.
I dunno who RAS is but I had a work truck with Toyo tires on it that would literally wobble at 40 mph on this one stretch of highway when traffic was heavy.
Les Schwab balanced and rebalanced then two or three times, never found anything wrong, it got so bad I talked my boss into putting new Michelin tires on it and it drove like new.
Not knocking whoever RAs is but sometimes they can only tell so much from their machines.
Yeah totally hear you. I'll get RAS (local long time tire shop) to check balance and I'll report back to you guys.
I'm guessing my lack of stock inner braces and inner fenders does not help. I'll ask Ron Rhodes who made the core support (and my seat brackets) what he thinks.
Other than that the car works fantastic, total street car can drive it anywhere.
I had hernia surgery 6 days ago so that put an abrupt stop on me working on the cars. When I'm able I'll pull the fronts off and take them to my buddy Chris who runs a AAA service center and been a long time drag racer. He'll check the balance and whether one of the wheels is bent.
Other than that I'll run the car at the track in the spring, I feel confident that the chassis is right. I'll just buy a new set of shocks for the rear once I've gotten the rear height where I want it. I got really good advice from Mikael who runs the Volvo wagon, I found out his car is ladder bar and he suggested some rear spring rates and also length of the springs to help with seperation.
Get well John! I’m dealing with an ankle injury of some sort right now and I’ll probably need to go in to have it looked at. No hiking or photos for the past two weeks and I’ll definitely be off again this weekend too, mentally this is pretty disturbing for me. I can at least work in the garage without it hurting too bad.
I know myself and others have been pushing for you to get on the track for a while now but in the end I think you’ve been taking the right approach. Better to play it safe, take your time to have confidence in the car before it goes full speed because we both know it’s going mid 8s right out the gate. Hope you heal up and get better quick. -G
Garth that's pretty much been my plan. 95% of the time I will be driving this car around.
Some friends built a car for another guy (1970 Nova, single S485, LC) and since they built it and based it on a well running combo, the new build went 8.50 first time out. And the guy drives the car all over the place.
Garth that's pretty much been my plan. 95% of the time I will be driving this car around.
Some friends built a car for another guy (1970 Nova, single S485, LC) and since they built it and based it on a well running combo, the new build went 8.50 first time out. And the guy drives the car all over the place.
All you guys running 8's like its nothing are gonna give me a complex that if I don't run 8's with my combo that I've failed at life lol.
Garth that's pretty much been my plan. 95% of the time I will be driving this car around.
Some friends built a car for another guy (1970 Nova, single S485, LC) and since they built it and based it on a well running combo, the new build went 8.50 first time out. And the guy drives the car all over the place.
Yup, well proven it’s going to do that and dip further once sorted. I’m actually nervous to drive the black car and push it once it’s been completed. I have every intention of driving it all over (within reason) as well. Looking forward to seeing it out this spring.
@The ****** We generally know what it would take to get a 3250 lb combo to run 8.99 with a single turbo LS. Boost ramp 1.0-1.3, Leave on as much boost as makes sense, 6-10 lbs depending on gearing, 2 step 3800 or higher, and need to make 800-900hp. For an S485 single it's gonna take 17-19 lbs to get there (generally). All of these parameters are plus/minus, some folks can get there on less power, some will need more.
One of my local buddies has been absolutely hounding me all year to make track passes, and he's running a stroker LS that runs mid 10s on motor. I don't think he understands how easy it is for a turbo combo to blow up without proper tuning, fueling etc., there is a lot more that can go wrong.
Last edited by Pro Stock John; 11-17-2022 at 01:02 PM.
@The ****** We generally know what it would take to get a 3250 lb combo to run 8.99 with a single turbo LS. Boost ramp 1.0-1.3, Leave on as much boost as makes sense, 6-10 lbs depending on gearing, 2 step 3800 or higher, and need to make 800-900hp. For an S485 single it's gonna take 17-19 lbs to get there (generally). All of these parameters are plus/minus, some folks can get there on less power, some will need more.
One of my local buddies has been absolutely hounding me all year to make track passes, and he's running a stroker LS that runs mid 10s on motor. I don't think he understands how easy it is for a turbo combo to blow up without proper tuning, fueling etc., there is a lot more that can go wrong.
Absolutely, Pat G. kept my SBE LS1 alive at 700whp for years and I firmly believe it was the tune that did it because I hammered the **** out of that car every chance I got.
I need to figure out what my 4th gen weighs for sure but the rest seems very attainable.
When you say boost ramp 1.0-1.3 is that leaving on 6-10 lbs on the two step and ramping to 17-19 in 1.0-1.3 seconds?
I'm using the Cortex EBC which I can do boost by time or even by gear.
Yeah, let's say it's the '99 in your sig. Assuming 2.48 first gear in the trans and say a 3.25 out back, You'd leave the line at 6-9 lbs and bring in all the power within say 1.5 to start and then shorten the ramp until the car doesn't work.
So like for mine, I know leaving on 6 lbs with a ramp rate of say 1.5 to start and making say 15 psi it will run at least 9.50.
My buddy just went 8.61@157 with his similar combo, and he was leaving on 7 or so, going 1.25 and trying to leave on more it would spin, so we figured 1.25 is good enough. He ramped in boost in 1.2, made between 19-21 lbs of boost. He's gonna leave that 1.2 ramp alone for now, trying to bring it in quicker it was showing some evidence of spinning, small spikes in driveshaft speed so it was on the edge.
Obviously there is more to it, He for example had to make a converter swap mid season the Coan he had was too tight. The PTC he got via Capizzi is much looser at the track and works much better but still drives nice on the street.
We figure for him to go 8.50 will need about 22-23 lbs.
Now if he just wanted to max out his Steve Morris S483 he could try to make 28 lbs and it would probably go 8.25-8.35 in there. Just a guess.
Last edited by Pro Stock John; 11-19-2022 at 02:01 PM.
Thanks mister! I'll say if you ever get this surgery, first two days you will take pain meds like a little kid eating a bag of M&Ms.
But day 7 I hardly took any, and today day 8 I might not take any. So there you go.
I can't wait anymore lol, so thanksgiving weekend i plan to pull the fronts off for Chris S to check balance and the wheels. I'm hoping one of them is way off.
Only other issue I will dig into is the the rear shocks a little hmmm crooked maybe not the best word... not fully upright. I'll figure that out if if I need to redo some of the spacers/bushings.
I'll hold off ordering rear shocks and springs for now, but I'll be looking into getting some double adjustable that have 7" stroke, 1.5-2.0 exposed at ride height, and somewhere between 90-110 lb springs that are 14-16 inches long.
Thanks mister! I'll say if you ever get this surgery, first two days you will take pain meds like a little kid eating a bag of M&Ms.
But day 7 I hardly took any, and today day 8 I might not take any. So there you go.
I can't wait anymore lol, so thanksgiving weekend i plan to pull the fronts off for Chris S to check balance and the wheels. I'm hoping one of them is way off.
Only other issue I will dig into is the the rear shocks a little hmmm crooked maybe not the best word... not fully upright. I'll figure that out if if I need to redo some of the spacers/bushings.
I'll hold off ordering rear shocks and springs for now, but I'll be looking into getting some double adjustable that have 7" stroke, 1.5-2.0 exposed at ride height, and somewhere between 90-110 lb springs that are 14-16 inches long.
I haven't prettied up back here yet so be kind
The new ones better start with an M and end with an r.
11-07-2022, 11:36 AM
