Why is my torque so low??
Why is my torque so low?? 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
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
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.
TECH Regular
Joined: Aug 2003
Posts: 414
Likes: 0
From: Berkley, MI
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 ?
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 ?
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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
lata
Bill
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Originally Posted by Mirek
are you that dude with the bodykit who was up at Woodward & 13 running 918 springs with that monster cam ?
I usually troll Gratiot
-Steve
Originally Posted by v8maro
I'm really itching to take it to a dynojet! lol
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.
TECH Regular
Joined: Aug 2003
Posts: 414
Likes: 0
From: Berkley, MI
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.
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.
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.
Originally Posted by Brian@AP-Engineering
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.
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
Originally Posted by WS6WRX
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.
-Steve
Originally Posted by CANNIBAL
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.
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.
TECH Regular
Joined: Aug 2003
Posts: 414
Likes: 0
From: Berkley, MI
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.
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.
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
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
TECH Junkie
Joined: Jan 2002
Posts: 3,015
Likes: 0
From: At the office
Originally Posted by v8maro
You just said it, you had yours on a dyno jet, my car would probably be @ like 420/380 on a dynojet...
-Steve
-Steve
What about tuning? Compression? Timing?