I was bored at work today so I decided to toss the truck on the dyno to get a baseline before I start modding it. The truck is a innercooled 91, 1-ton. It has 230,000 miles. I just bought the truck a week ago, to the best of my knowledge the only things done to it are a K&N, no muffler, and I am thinking someone has turned up the fuel. The best numbers were 191hp and 422ftlb or torque. Does this seem high/low, on par? Thanks for looking!

 

i would think its close, i might be wrong but i think its like 180 hp on those models, there ae several threads on how to bump it up a bit,,but get your gauges first

 

The truck has 160hp, 400ftlb torque on the valve cover. I guess thats stock. Gauges should be here Wednesday. Then its gonna get out of hand!

 

A stock first gen usually makes about 135hp and 360 ft/lbs on our dynojet.

Mike

 

I guess my old beater is doing ok then. Our Dyno Jet is very comparable to the others in my area, hp number wise.

 

get out of hand mines not out of hand,,,,uhm well cept the turbo exhaust injectors,,thats all

 

Some prior owner has done a little tweaking on the injection pump to get that at the wheels. I changed to a 16cm2 turbo housing, bumped up the pump, stiffened the A518 auto and got to 191/491 on the Dynomax.

Have fun with it.

DBF

 

Oh I plan on having fun. I bough the truck to have fun. I was pretty happy with my baseline numbers. My problem is the truck runs great, just seems to be leaking fluids from every stinking place it can be leaking from. I know the truck has tons of miles left in her but I am thinking of pulling her to rering, bearing and cam her. I will also O ring the head and block plus port the head.

 

My non intercooled 91 with a K&N and 16 cm housing as the only mods, dynoed at 165 hp and 366 ft lbs at the rear wheels.
I need to dyno again and see where I'm at after the mods I've done.
Jay

 

Either it is not mentioned or I am missing it. Is your truck an auto or a gutbag tranny? 135 RWHP is about normal for a stock auto. I've heard about 145 for the manual tranny.

Carl

 

The truck is a automatic

 

OK, curious. I want to dyno mine when it's fixed, where do you guys go? I'm in the central Ohio area. And how much does it ussually cost/

 

Ive got one at my shop. Not that it will help you, (Im in Wichita Falls Texas), we charge $85 dollars if you plan on tunning on it or $50 for 3 pulls.

 

It sounds like you already got the bomb bug
I wonder how fast my truck would be if it only weighed 6500
Im sure you will be getting even bigger numbers in no time
Good luck