fst100

iTrader: (5)

I was just thinking about where my motor/setup is HP performance wise. My lil brother recently got his car dynoed on a dyno-jet and got ~373rwhp (can’t recall the torque). His setup is as follows:
MS4 cam
LID
LS6 intake
Kooks LT headers
3.73
Built 4L60E with 4K stall
Rich AFR/safe tune (will get a proper/dialed-in tune once his AFR heads are installed)
Stock heads (stock LS1 CR)

After a bit of research on other older threads other ppl with similar setups were around 380-390rwhp thru the auto (not many I found that broke into the 400whp range)
His best time thus far has been 11.8 at 114-118mph depending on DA

So getting back to my current setup im running a medium off the shelf cam in a LQ4 with stock 317s at 9.4:1CR with:
SLP LTs
3.73
Built 4L60E with 3200 stall
LID
Ported TB and MAF
Tuned by myself with 12.8AFR
LS6 intake

Never had a chance to get it dynoed but PB at the track was 12.3 at 112-114mph depending on DA. Given the compression ratio difference I am kind of lost on how im only a bit underpowered? i imagine if he gets his car tuned correctly his numbers would be higher towards what others have dynoed/ran. im still learning on the mechanics

Rise of the Phoenix

iTrader: (27)

Are you planning on boost because your compression is far too low if not. I also think your brother is making more power than what the dyno says based on his ET's.

fst100

iTrader: (5)

i was originally but after thinking over my priorities and budgeting such i am sticking with N/A. i got a set of home-ported 243/799s thats milled 0.030 and multi-angled valve job that is currently being installed by DFR shop. also going with 0.040HG. compression wise i calculated it'd be 10.9:1 where LS2s are if im correct?

Rise of the Phoenix

iTrader: (27)

That will help you. No reason not to maximize your compression if boost is not in the plans. Also, what size is your cam?

fst100

iTrader: (5)

yep. the cam's a 232/238 with a .600 lift on both intake/exhaust on a 113LSA

Rise of the Phoenix

iTrader: (27)

That's a very solid cam for your setup. A FAST intake/TB setup would put you over the top in my opinion.

fst100

iTrader: (5)

off topic but my builder called me and said one of my dual valvespring, the inner spring broke? they're 650lb lunati dual valvespring. does texaspseed or any of the sponsors sells the inner spring by themselves or i'd need to get both inner/outer valvespring as one piece?

fst100

iTrader: (5)

if i can get a good deal on a fast 92 that'd be awesome but they're pricey still. was always curious on the truck manifolds. i understand they're too tall and have clearance issues but is that just small pieces on the top or like the actual runners get in the way? if the former if its possible to just shave the areas down?

Rise of the Phoenix

iTrader: (27)

I know there was a thread a few months ago where a guy shaved and smoothed a truck intake. It looked really nice, but I'm not sure how much better, if any, the truck intake is over a LS6 intake. Occasionally in the classified section on here you can find good deals on FAST intakes and TB's.

fst100

iTrader: (5)

pic taken from https://ls1tech.com/forums/generatio...lly-bad-2.html


i still have mine...half tempted to try and just shave the high areas/posts down and see if it'd clear on a ws6 hood (currently running stock hood).

Rise of the Phoenix

iTrader: (27)

I'd be curious to see some real world data/testing that shows if there is a big improvement in going with a truck intake over a LS6 intake. I guess I need to search a bit because I'm sure it's out there somewhere. I'm going to go out on a limb and say there must not be much, if any, improvement because if there was, you'd see this all over the place.

fst100

iTrader: (5)

yea you'd be correct. a few searches resulted that the only advantage with the truck over the ls1/ls6 is the runner volume. the other 2 specs, diameter and liter size its smaller. oh well, i may just wait for a decent price on a used fast 92 or even a fast 9m. in any case, just picked up a replacement dual lunati valvesprings :-)

Rise of the Phoenix

iTrader: (27)

If you're patient, you'll find a good deal on a FAST setup. There are plenty of desperate people out there looking to sell ASAP.

CHEVELLEPOSSE

He should of dynod 4+ I dynod that much with a 228r cam full Bolton

fst100

iTrader: (5)

out of curiosity, is your trans a A4 or M6?

Rise of the Phoenix

iTrader: (27)

I agree. If you look at his ET, it doesn't correlate with the numbers he put down on the dyno. Another reason not to worry so much about dyno numbers.

fst100

iTrader: (5)

i agree too that the dyno is moreso a baseline number indicator.