Performance camshaft for a 2.5

[campersam9]

I have a 1994 jeep wrangler 2.5L with 4.11 gear ratio using 35" tires. 130 miles
I was looking into putting in a low torque camshaft. Or lower the gear ratio to help out with the 35" tires. I can afford one change. What will give me the most performance for my money?

 

[machoheadgames]

There is no cam in the world that will make that 2.5L happy running 35” tires with 4.11 gears. Even the 4.0 doesn’t do very well with that setup and it has 50% more horsepower and torque. Regear it to 5.13 and consider stepping down the tires to 32” or so if you want it to perform decently.

 

[PCS]

There is no cam in the world that will make that 2.5L happy running 35” tires with 4.11 gears. Even the 4.0 doesn’t do very well with that setup and it has 50% more horsepower and torque. Regear it to 5.13 and consider stepping down the tires to 32” or so if you want it to perform decently.

You're absolutely right about the 2.5L, However, the 4.2 & 4.0L's can both take advantage of billet roller camshafts that'll have ya north of 300hp/tq , but I still say a regear is best.

 

[PCS]

I have a 1994 jeep wrangler 2.5L with 4.11 gear ratio using 35" tires. 130 miles
I was looking into putting in a low torque camshaft. Or lower the gear ratio to help out with the 35" tires. I can afford one change. What will give me the most performance for my money?

Get rid of the 4 squirrels and go with an I6 and your options broaden by A LOT!. However, its not cheap to do it right, you get what you pay for... these aren't SBC's.

 

[machoheadgames]

You're absolutely right about the 2.5L, However, the 4.2 & 4.0L's can both take advantage of billet roller camshafts that'll have ya north of 300hp/tq , but I still say a regear is best.

A cam can improve things but that alone isn’t going to bring a 112/235 HP/TQ engine or a 180/225 HP/TQ engine up to 300/300. Even strokers barely get up that high.