v8maro

iTrader: (4)

383rwhp/346rwtq (mustang dyno)

Reference to dyno: https://ls1tech.com/forums/showthrea...2&page=1&pp=20

Mods:
Patriot Performance Stage 2 5.3L heads
TSP 232/228 .595/.588 112LSA cam
TSP Clear induction lid
Pacesetter LT's
Pacesetter ORP
Manley Hardened pushrods
Patriot Performance gold valve springs
new TI retainers
LS6 Intake
3" Cutout


Is it my heads or my cam? or the whole combo?

I was looking at maybe going to ls6 stage 2 heads and the 231/237, what are normal #'s for this combo and would it be worth it?

thanks
-Steve

Trans Am Kid

It the Mustang Dyno, If the operator didn't get the weight of your car right, I will read wrong numbers.

BOO HOO BRIAN

iTrader: (-10)

On a mustang dyno we plug in 3500 for all f cars. The only time weight plays a factor is if we were doing a simulated 1/4 mile run on the dyno.

chetyg

yeah dont read too much into dyno numbers take it to the track and see what it traps

Taspeed

iTrader: (1)

Was the cutout open during the dyno run? if so cap it up and see if your numbers don't come up a bit. it may be too much exhaust with the spit duration cam. A little more back pressure will go a long way.

v8maro

iTrader: (4)

The dyno sheet said 3600lbs
Yes, the cutout was open.

I'm really itching to take it to a dynojet! lol

Mirek

You and me both.
How is your torque down low seat of pants wise ?
Do you have to spin it up to 5000-6500 grand to get the horses ?
Mine repsonded very nice to the LGM longtubes which are 32 inch primarys into merge collectors into 3inch x-pipe into 3 inch pipes back to the mufflers. Uncorking my exhaust was night and day....not sure how much those f-bodies are restricted with that y-pipe setup....maybe somebody who went to true duals with the f-body will be able to share the torque gains....are you that dude with the bodykit who was up at Woodward & 13 running 918 springs with that monster cam ?

foff667

iTrader: (2)

for a mustang dynon i dont think the tq #'s are that far off hed probably be looking at 360-370 on a dynojet and with the cam & heads provided it sounds right in the ballpark of what everyone else is making and before you go jumping to an even bigger cam on stock cubes look at what mike98ws6 gained by going to the 231/237 cam. Bottom line is they look inline for the mods posted IMHO.

lata
Bill

v8maro

iTrader: (4)

Nope, not me, check my site for pics.
I usually troll Gratiot
-Steve

Scalpel

iTrader: (4)

Don't get hung up on dyno numbers.

Does it feel better driving now with the tune? Do you notice an increase in performance, that's what you should be more concerned with as opposed to dynoing on a Dynojet just for better #s.

Mirek

I can't believe the torque is that low on a cam that big.
Especially tuned for christsake. I'm just saying, even on a mustang.
What kinda torque is everyone else putting out. Those are nice heads too.

WS6WRX

iTrader: (1)

I'm sorry but those #'s seem way to low for me. I made the numbers below w/ stock heads and "crappy" hotcam. I would hope that a stage2 head and cam would be good for more than 10hp over my car. But then again that was on a dynojet.

mrr23

iTrader: (3)

weight does play a factor in dynoing. here's my dyno sheet showing that. all we did was up the weight from 3050 lbs to 3550 lbs

Mirek

I checked in @ 3300 for the record.

v8maro

iTrader: (4)

You just said it, you had yours on a dyno jet, my car would probably be @ like 420/380 on a dynojet...

-Steve

v8maro

iTrader: (4)

Yeah, after the tune the car drives a lot better and I can feel more power out of it

v8maro

iTrader: (4)

Then your TQ and HP would be lower.

Mirek

Ummm actually according to the dyno results based on weight posted above they would be higher. The FRC is the lightest C5 ever built BTW.

Somebody has to be able to help with why your torque is in the pooper....I was looking at the TEA 5.3 heads and am second guessing myself.

v8maro

iTrader: (4)

uhm noooooooooooo you need to read the graph better, if APE put your car @ 3600 on the dyno then you re-did it at 3300, your tq and hp would be lower.

Look above,
@3550lbs
265/307

now same car but lighter
@3050lbs
258/305

thus, lighter car, same power = less HP/TQ

My torque is right on, 380 on a dynojet is what people usually see with this cam.

-Steve

verbs

380rwtq is reallly weak regardless especially on a stock rear end....maybe adding an EWP, TB and pulley could get your numbers as a whole up a little bit....but the 12 bolt will just bring em back down a bit....

What about tuning? Compression? Timing?