lookin for 500-550hp first time build

2

.204

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I have a 94 cummins with a 160 pump and a nv4500 looking to get 500-550hp i plan on building a set of twins hx35-ht3b im not sure what i need on the fuel side to get the power im looking for. It will be put on the road but not be a daily driver just a play truck. It will not be hualing a trailer or anything like that. might hook it to a sled once or twice just for fun but thats about it. Any help will be appreciated.
 
5x.014s
024 DVs
4k GSK and 60# valve springs
AFC mods
Mack rack plug
timing in the 18 to 20* range
Pusher pump (carter) or full fuel system

I laid down 422/903 on stock DVs, 3k governor washer mod, AFC mods, 100 plate FF, 19* timing, 5x.014s, 60/60/VGT holset, and a pusher pump... The 160 pumps respond well to the rack plug and the 4k springs would help fuel harder for longer. So those alone I feel would easily get me into the 500rwhp range even on my little single since I never went over 1250* on the dyno :Cheer:

stan422.jpg
 
5x.016's
stock 181 delivery valves
mack rack plug
4kgsk
0 plate full forward
arp head studs so you don't blow a headgasket
18*
stock fuel system
got me to 458/1053 uncorrected on stock hx35/12cm housing, so if I had a little bit more air I know 500+whp was there. If I was you I would build a set of twins with your hx35 and an s475 with a 1.32 housing. very common setup.

dynograph.jpg


 
for 500-550 id say run a 71mm under the HX35, quicker spoolup and still plenty of air for 550-600 if you want.

Garrett
 
SSpeeDEMONSS said:
for 500-550 id say run a 71mm under the HX35, quicker spoolup and still plenty of air for 550-600 if you want.

Garrett
Click to expand...

very true, its going to take lots of tuning to hit 500+ on a dyno with a 71mm as a single, but you'll know it has the power on the street though.
 
9712valve said:
very true, its going to take lots of tuning to hit 500+ on a dyno with a 71mm as a single, but you'll know it has the power on the street though.
Click to expand...

When he said "under the HX35" he meant use the 71mm as the bottom charger in twins.
 
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