Poly stroker fresh build mileage query

[kiwigtx]

How many swimming pools is that?

I think it's about 26.5

 

[katmachine62]

Are you sure it's a 3.23?
3,000 rpm seems too high to me even with a short tire.
Should be more like 2,600 rpm.

But if it is a 3.55 then it would be closer.
Or you have a slippery torque converter.

It's definitely a 3.23, I checked, and double checked it!... How can I determine/know if I have a slippery converter?

 

[katmachine62]

What are those 245/60/14s??
I guess! a 28 will help.
old cars with 3 something gears run high rpm. Just like they did new.

Current tire size is 195/70/14... So, yes the 28inch tire I hope to add soon will definitely help the rpm situation!

 

[Don Frelier]

3000 rpm just sounded way high to me.
I've got 2 cars with 3.23 gears so I found a calculator.
I just don't see how you get that high without the converter slipping or the transmission itself.
But the converter seems more likely.

Using your numbers:

 

[66 Sat]

Error in your calcs Don, the tire is 24.5" (actually 24.7" according to internet).
You've put 25.4" in the calculator.

 

[katmachine62]

Error in your calcs Don, the tire is 24.5" (actually 24.7" according to internet).
You've put 25.4" in the calculator.

Thanks 66 Sat, that's what I thought too...

 

[matthon]

Tire Size Calculator

The best tire size calculator. Use our tire size calculator to find tire size specs and suggested tire sizes. Then check prices for all available tire sizes.

tiresize.com

 

[Don Frelier]

Error in your calcs Don, the tire is 24.5" (actually 24.7" according to internet).
You've put 25.4" in the calculator.

Ok ran it again but it still doesn't match what he describes:
(But it is closer)

 

[katmachine62]

Update... Put the 28 inch tires on the rear, and all good in regards to rpm now! I'm sitting around 2500 or so at 62mph, from initial I dications (but need to take on a proper run)...