When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have the graph and time slip I guess that isn't too bad but I need to actually put tire on the car and get it to hook so I can see where I'm at. I might try short shifting into 4th next time to see if I can get the car to go a little faster since I make more torque a little lower in the power band. I think even with 3.42 gears (which are probably hurting my times) I can trap a little faster.
Just to see if I can squeeze more MPH out of the car without gear. The torque drops almost 60 from 5500 rpm onward. I'm going through the traps at the top of third at around 6500 rpm right now.
Just to see if I can squeeze more MPH out of the car without gear. The torque drops almost 60 from 5500 rpm onward. I'm going through the traps at the top of third at around 6500 rpm right now.
If you want more mph without gear, you need RPM. Don't pay too much attention to your torque curve.
If you're 360 pounds of torque at 5500 and 300 at 6500, if you're in third that's 400 at the tire and 360 at the tire in fourth
Set your valve train up to rev to 7300 and ride your gears.
My car, at 7300 in first I have more pavement torque than I do in second at 5200 on the upshift, which is where my torque peaks! Torque at the tire is king, which means maximizing your power curve not your torque curve.
I guess I should start figuring out what rear is good for my car A 9" might be overkill so maybe a strange s60?
I doubt one is more overkill than the other. The 9" gives you endless gear ratio and easy ratio swaps. S60 ring gear setup apparently chews a bit less HP than a 9" but I think that is arguable given it's weight and size. From memory they both about equal each other out in a 1/4 run.
S60 is very strong and cheap but you are stuck with a 3.54 gear being the lowest numerical available.
I think i've about decided myself to go with the 9" probably a Moser setup, because of my T400 transmission I can throw in a 2.75 or even 2.50 center section easily and go cruising and still have more than enough power for the street plus top end speed, then just throw together another spooled center section with whatever ratio I need optimum for the track.
I doubt one is more overkill than the other. The 9" gives you endless gear ratio and easy ratio swaps. S60 ring gear setup apparently chews a bit less HP than a 9" but I think that is arguable given it's weight and size. From memory they both about equal each other out in a 1/4 run.
S60 is very strong and cheap but you are stuck with a 3.54 gear being the lowest numerical available.
I think i've about decided myself to go with the 9" probably a Moser setup, because of my T400 transmission I can throw in a 2.75 or even 2.50 center section easily and go cruising and still have more than enough power for the street plus top end speed, then just throw together another spooled center section with whatever ratio I need optimum for the track.
That's not a bad idea, I could do a 3.73 iron center for street driving and a spooled aluminum 4.56 center for track.
Finally got my car to the tuner Friday for a tuning session, I'm very pleased with the results! The final numbers were 407 HP / 370 TQ in 90*+ weather. The low numbers on the chart were my bolt-on/tune baseline before the cam swap. How are the numbers comparing to other cam-only cars? It pulls so much harder now even with my 3.42 gears, I can't wait to change them to 4.11 or 4.30s/4.56s
Mods:
BTR Stage 4 cam
BTR .660 Springs
LS6 intake (stock)
TSP 1-7/8" headers + 3" Y pipe to a cutout
K&N FIPK
What heads are you running and whats your compression ratio
08-02-2016, 12:08 PM
I guess that isn't too bad but I need to actually put tire on the car and get it to hook so I can see where I'm at. I might try short shifting into 4th next time to see if I can get the car to go a little faster since I make more torque a little lower in the power band. I think even with 3.42 gears (which are probably hurting my times) I can trap a little faster.
A 9" might be overkill so maybe a strange s60? 
