trying to break 500 rwhp, what to change.
 

not sure how completely accurate the hp formulas are but after a few runs at the track i calculated 503hp at the crank and 439hp rwhp. Again not sure how accurate the couple different formulas i used are.

Im trying to break into the 500 rwhp, I know my s300 is on the small size but with my current set up would a 62-64mm compressor get me there or will the 5x.012 sdxs fall short and need to bump up to 5x.014?

Im hoping with more timing and a diffrent charger I can reach my goal without additional fuel. I have a great set up now spools fast, almost nothing but a haze a wot but after the ddp dvs i had to put the plate back in and pull back the fuel to get the turbo to light sooner. egts are very managable and im around 38-40 psi.

What Is your current setup? I can't see your signature.

Just guessing since im on tapatalk and cant see your sig either but i would suggest both a s364/68/.80t3 gated and 5x14s and 18* timing.

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96 12v, NV4500, 1 3/8 billet input,fully splined main, Kevlar valair super single, 4in stainless turbo back. 100 plate, tuned afc, Afe stage 2, isso pro gauges, air dog 2 165 gph @ 35psi, custom coolant filter, 3in susp lift w/ 325/60/18 nittos, rockstars, horton electric fan,4gsk w/60lbs vs,5x.012 sdx injectors,vulcan boots,ddp .042 dv, 3 piece pulse manifold, s357 57/65/14

Ya turbo is kinda small to make 500hp on. A 62 is pushing to make 500. Ideal is a 64 and some 5x.018

Yeah or split the difference with some 16s but since hes got dvs already dont ya think 14s would do it? Hes got the plate pulled back. So using 14s would let him use more of the rack travel making it slightly more tunable. True? Altho 5x18s would be more fun!

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5x.018s would e more fun lol but I meant to type 5x.014s lol

Alright guys thanks, so you think there is no way i can do it with a charger and more timing? Ill need bigger sticks?

I would start with more charger. The haze at wot is telling you that you cant stand too much more fuel as is. Like ed said a 62 will make 500 but its going to be a warm 500. Do the charger first then start sliding the plate forward more. Probably going to have to retune the afc. I would keep the timing in the 16* range with your current injectors. If that dosnt get you there you could bump it up to 18-20* but i doubt you see a big change from timing alone. If you still cant get there injectors will be required.

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I like to go heavy on the fuel myself...:w2: you can always turn the pump down. A set of 5X0.014s and those DV's should get you in the ball park but its going to be warm.

Is it just me or are only the guys from northern Arkansas posting up???
:argh:

kinda lookin that way aint it chris...lol

btw call me on the shop phone when you get a min please

Ill give you a call tomorrow afternoon.

62/71 gets the non Arkansas vote, its a nasty little charger. If this were my truck I would go bigger on the injectors with a set of 191's. Timing round 22is ... seems to work pretty well. :c:

Also may want to hit a dyno first track times with a 5spd are not the best way to figure HP IMO

Mr. Swank. How dare you challenge the state of Arkansas.

:lol:

Seen a 62 make 508 one day but it was a warm 508

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We north east yanks do things a little different :)

Its a fun street charger tho. Guy around my was has one with a set of 5x16's 6800lbs truck 180 pump best 1/4 mile was 12.4 and can run 12.5 all day. it is a bit tosty on a wot open pass but with the street tune its a blast on the road.

Oh yeah plenty fun id just go with a 64/68 same spool more flow

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ive been looking around for turbos just trying to decide to either upgrade the little 57/65/14 with bigger housing and wheel or let it sit on the shelf and find another.

The truck is mainly a street rig and have no plans of hooking to a sled with this truck, so a fast spool up is what im looking for.

as for draggin a 5 speed....it sucked, seeing as i had no 4x4 at the time(input shaft bearing on the tcase was the wrong width) , the few times i didnt choke the turbo out the tires just ripped loose.

I do like the sdx 5x.012 injectors but they were not as noticable in power gain as the .042 ddp dv. Im trying to keep the truck as clean running as possible and with the injectors, dv, and turbo i get a good puff early on and cleans up nicely at wot to a slight haze. I have to really push the truck to see 1200 degrees

Why not go with a set of twins using your S300 and a 3B or 475?

Would a non wastegated ht3b be a good match with my s300 ,specs? If so what housings should i look for in a ht3b