PewterZ28

iTrader: (1)

SCROLL DOWN FOR GRAPH

This is a TH350 car with a 4900 RPM UNLOCKED converter through a 12 bolt with 4.10's so don't expect any Smokin01TA or LS1JOE numbers.

Last year with LS6 Intake Manifold and stock H2O Pump I put down 381/346 rwhp/rwtq. I was hoping to pick up at least 15 rwhp from an unported FAST 90 mm Intake, 90 mm NW TB and Mezzier Elec H2O Pump. I also added FAST fuel rails.

So I was quite happy when I put down 401 rwhp on my first pull. After a few tweaks and getting rid of some minor detonation the final pull was 403/351 rwhp/rwtq. Air fuel was a tad lean at 13.6~13.8:1. A little more fuel and I might have picked up a few more ponies.

If memory serves me right, Magnus and 01Z (THE JUGGERNAUT) both put down 412 rwhp with a similar setup (different exhaust I think) and they both were able to run 10.29 (albeit 200 to 300 lbs lighter). So I'm hoping to run some 10.7's or better in negative DA.

I wish I could post my curves from last year and this year on the same graph but they were done at two different shops so I don't think I can.

The horsepower curve from 4900 to 5200 is identical to last years. After that the curve really moves upward to consistent gains of 20 to 22 rwhp from 6000 to 6900. The torque curve moved up 5 rwtq AND to the right a little. So the mods were worth a solid 22 rwhp and 5 rwtq.

However, I still think my torque numbers are low in general. Could this be a result of not enough back pressure? I don't know why my horsepower numbers would be on par with others but my torque numbers seem to be 30 rwtq lower than others.

Finally, just as last year my horsepower clearly peaks at 6400 and then begins to fall, especially after 6700. I thought this cam was supposed to peak at 6700 or 6800?

I will try to post the graph later.

bad95killer

Impressive rwhp number buddy i know the torque is abit lower than the average but the strip is the judge

post the graph Derrick once ya got it

peace

BAIN

iTrader: (5)

Congrats! Wish my car would put down those #'s. I'm still waiting to get into the 10's

BADSZ28

iTrader: (39)

BAIN, have you run the car with the T-Rex yet?

foff667

iTrader: (2)

wonder if you would gain some time if you richened it up a bit...13.6-13.8:1 on a dyno is considered pretty lean in itself...throw it on the street with real world conditions & you'd probably be even leaner...just something to consider.

gator's 99TA

iTrader: (2)

4900 stall will destroy any chance of a big tq number on the dyno. in real life that thing hammers i bet.

PewterZ28

iTrader: (1)

I thought it was the other way around. Less load on the dyno = leaner on the dyno, richer on the street. Or have I been back assward all these years?

However, I really think the dyno wideband was not accurate on my pulls. My friend's Innovative handheld wideband was reading 12.8:1 ~ 13.2:1 both on the street and on the dyno. His was plugged into the passenger side pipe about 1 foot past the header collector. The dyno operator's probe was placed in the driver side exhaust tip. I don't know if that makes a difference. If anything, I thought the passenger side always read leaner.

PewterZ28

iTrader: (1)

I was only comparing my numbers to those of 01-Z and Magnus. If memory serves me right, they only pulled 9 more rwhp but nearly 30 more rwtq. They both had 5500 RPM 8" converters.

ls1408cp

iTrader: (37)

is that thing going to waitway anytime soon. So i can come see it.

Tony Mamo @ AFR

iTrader: (13)

Those results are right in line with what I always quote people regarding gains I've personally witnessed on at least a half a dozen dyno tests (chassis and engine dyno) with an out of the box unported FAST 90 set-up (although there are still many doubting Thomass's on the FAST intake benefits....stock or otherwise).

A stock FAST/90 set-up normally shows minimal gains in the lower and middle RPM's (loses a little very low in the curve) and then really comes on upstairs (usually 12-15 RWHP). Considering some of your gains are from the EWP (5-7 RWHP) and a small bit picked up in the tune, it seems to me the math works out perfectly here and your car is a good example of what I have personally witnessed time and time again. You actually would have been down a little in the lower RPM areas where your current dyno showed no gains because the EWP was actually helping you a little there as well...

Good stuff...

Tony

PewterZ28

iTrader: (1)

Tony is right on. I was able to find the curve from last year and print it on the same graph as this year's. I gained zero in mid range but quickly started gaining more and more as the RPM climbed. The torque curve (if you can see it) moved up and to the right. I don't know if this is good or bad or irrelevent.

Once again, changes from last year were: Added Unported Fast 90 Intake, NW 90 TB, Fast Fuel Rails, Mezzier Street Elec H2O Pump.

Here's the graph:



I guess when you consider the cost it's not that impressive but in the LS1 world it is a nice gain. I'm happy. Now if I can only run two or three tenths quicker I'll be even happier.

BAIN

iTrader: (5)

I have ran it, but troubles with the tranny and tune has kept me down when the good air was here this past winter. Now that the tranny is fixed and I'm still working on the tune (was SD going back to MAF) the weather is getting hotter. With the tune being off quite a bit and +1850 DA it was running 11.2's @ 120 mph weighing 3420 with me. Hopefully I will have it worked out soon.