Just out of idle curiosity, how much power can someone make with 370's? I'd like to keep these injectors for a while if I can. Also, I don't seem to have the idle haze everyone seems to talk about. Not complaining, just wondering if it more or less varies by truck.

 

With the 215 pump you could be into the mid 400's.

 

What about with a 180 pump?

 

I suppose with some aggressive delivery valves, which you probably already have, should be close to that as well I would think. A different turbo for sure.

 

you have a 215pump all 96-98 5spd's are 215 pump's 96-early 97 auto's 180 pumps all 98's 215 pump and 94-95 160 pumps and 94-95 5spd's 175 pumps's

 

We have a local guy making 425hp on the Dynojet with a 180 pump, stock charger and 370's 4k's 60lb springs and some pump work. Thats a realy hot EGT setup though.

 

Not true i have a 180 pump on my 98.

 

Same here!

 

The most I know of is Matt Wells. He and Garmon found a sweet spot.. He had a super simple setup. It was 370's, 5k GSK, stock DV's, stock springs, stock head gasket, stock head bolts, and a larger housing on the exhaust side of the stock turbo. Then they set the timing.. He pulled his fifth wheel to the track, raced, then pulled it home.. Never changed the tuning. I know he was doing 12.20's with that combo, and may have gone quicker. It made 501-1400 on Dunbars' dynojet dyno. I bought the housing to go with the same setup for my 94, then decided I'd like to be 600 instead of 500.. He ran that combo for a long time before he went to a larger charger..

 

I have a 96 1 ton drw. 5sp. built in Dec. 1995. Is my HX35W a 215pump?

 

Your HX35W is the turbo.

The 215 pump is an injection pump.
Since you have a 1996 or later with the 5 speed, it should be a 215 pump. Unless it is a CA truck-- those trucks often had lower ratings like 180 even with 5 speed.

jh

 

your hx35 is the turbo. the fuel pump is on the other side i believe you may have a 175 pump. but i could be wrong

 

Yes the 96-98 Autos have 180hp pumps the 96-98 5 spd's have 215 pumps

94-95 autos have 160hp pumps and the 94-95 5 spd's have 175hp pumps

 

95dodgectd, check my sig and you will see that i do have a 180 pump. I went FROM and auto to an nv4500. And I also have the stock dv's which I believe are 181's right?