2.3 car

7700 rpm redline

tires 225 40 17

I got my hands on 235 50 17 dont want to spend cash on a final drive

 

What's surprising about this? You run out of gear, and shift to the next

 

its just a super low speed to shift into 5th and also i am wondering how much time i am losing there

 

2.3 can rev to 8k, so you're giving some up there.

Your weird tire size (225/40r17) isn't helping.

You need taller tires or a final drive, or higher rev limit.

 

got some 50 profile tires they work well my car is on oem suspension

will raise redline to 8100 even though im on stock valve spring dont plan on revving her out only in 4th gear

car is only trapping 123 mph on pump gas and it has a 6262 but i think shifting into 5th gear is hurting trap

i used a thing called draggy app,,,,even though when I drag race I use motorcycle slicks which are tall but for street racing 24.4 tires suck.......

 

Should have built a 2.0 or 2.2 for more RPM if your plan was to build a drag car.

I'm not sure I would push the rpm's with stock valve springs...

 

Per Jack's Transmission:

Evo 8 will be 122mph @ 7500rpm
Evo 9 will be 115mph @ 7500rpm

Your results are right on par if you've got an Evo 8 with tires smaller than stock.

Not sure why you think your speed is low.

 

will my trap speed go up now that i dont need to shift into 5th? if so by how much do you think

this tires are way taller than stock

 

im with LGTD
no good with stock valve springs.

 

Do you drive this car on the street?

A 235/50/17 is gonna handle like crap... why not get a set of 245/45/17 if you want something taller to raise your trap speed, while still going to handle ok

I've never heard of someone putting a 225/40 on an Evo before

 

those 225 tires are setting you back for sure. Based on my calc's the 235 50's should net you 129 mph in 4th at 7700.

 

could care less about how it handles I only drag race and roll race

its a smoother drive now though havent tested 4th to see if my speed went up though been raining every day

 

You need a bigger tire if you are running the stock final drive. You are barely running a 24" tall tire with that tire sire. With stock final drive you want to be around 26" overall diameter. The 235/50R17 will help cause you are around 26.3" overall diameter on that setup. Nothing wrong with a 2.3 drag car. More torque means more tire spin and less likely to break drivetrain components. They are just harder on the clutch. Ideally though if you are building the car for drag racing look into a set of 26" Hoosier QTP. Will work well with the stock final drive and actually help absorb some shock off the launch and be easier on the drivetrain.

 

car picked up a buttload of speed with the tires 134 mph and relatively low redline still