Using a 97% loaded diameter on a true 28" slick and CliffyK's calculator I get 118 mph at 6000 rpm for 4.10 gears.

Reference: PaladinMicro

Edit: I have a typo in the original post. I used 97% loaded diameter not 95%. I just fixed it.

 

Using a 95% loaded diameter on a true 28" slick and CliffyK's calculator I get 118 mph at 6000 rpm for 4.10 gears.

Reference: PaladinMicro

I might switch them out for 3.73s when I build my rear end completely. I imagine I'll be rebuilding it anyways cause I'm not to confident in it holding the power.


Sent from AutoGuide.com Free App

 

First put the blower on and see what kind of power the car makes. I've had 4.10's N/A and blown. Went from 101mph to 112mph. I use a 26" drag radial and max out 4th gear at the track. Right around 6300-6400rpm when I let off. If the car makes 360rwhp or less then you can stick with a 26" tire. If it makes a bit more then step up to a 27". You really don't need a 28" tire with the 4.10's unless you are pushing well over 400rwhp.

 

I'm shooting for 380-400rwhp. I wanna run 8-9psi. Hopefully that'll get me there


Sent from AutoGuide.com Free App

 

Sounds like the PO probably ran it on a Mustang dyno. Those are pretty low numbers with HP 292s and 7psi.

 

Well I planned on running a 3" pulley but I can seem to find one anywhere. PO ran the factory 3.5" pulley and he made 7-8 psi non intercooler.

 

The pulley should be the same for the 1000 and 2000. Paxton might have one. Smallest pulley superchargersonline carries is the 3.25 6-Rib Drive Pulley : SuperchargersOnline, Worlds largest Supercharger Resource. Get Serious About Power.

 

Paxton don't sell a 6 rip 3" pulley. Only a 10 rib 3" and 8 rib. I was doing some searching last night and it said that Paxton no longer sells 6 rib 3" pulleys.

 

I have full bolt ons and I'm running the 3 core cx racing intercooler. I'd b happy with 370rwhp. I mustof overlooked the pulley on Paxton's website.

 

Switching from a 26" tire to 28" slicks has the effect of changing your 4.10 gears to 3.80 gears, pretty close to a 3.73 swap.

 

Do u think I could run a 2.87 pulley without having belt slippage? That should put me around 9-10 but I don't know if I should run 9-10 or 8-9psi

 

I run a 28 inch tall tire with 4.10's. For my car its just the right amount of gear even for street driving.

 

what rims are y'all running with your 28" tires and what offsets? I am looking into some 28" with slicks for our 2002 and want the tires nice and under the wheelwell

 

I'm running a 15x10 witha 6.5in backspacing.


Sent from AutoGuide.com Free App

 

thanks...that seems to be the backspacing that'll keep'em under the wheelwheel...have you had issues with them hitting the quadshock? I am thinking of dumping mine anyways as I installed tubular LCA's after the rearend rebuild. I know some have gone with 5.5" backspacing but I haven't liked the look of those from what I've seen

 

Im also running a 15x10 w/ 6.5 bs. The typical size backspacing for stangs.
Have you dyno'd your car yet? It would help alot to know how much power you're putting down and at what rpm. For instance i rev my car to 7k with 410s and 26" slicks and hit about 6400-6500 through the traps. So for me 26" tires w/ 410s are perfect, but if you rev lower they may not be for you.

 

I use a 15x8 with 5.5 backspacing. You also want to run the smallest wheel/tire possible as long as the car hooks. Most cars don't need a 15x10.

 

That was what I was gonna go with but I bought my current set up for a 100 bucks off CL. I just couldn't pass that up.