Dynojet Base Run
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iTrader: (3)
Joined: May 2004
Posts: 4,345
Likes: 1
From: Brighton, CO
Car: '72 Chevy Nova
Engine: Solid roller 355
Transmission: TH350
Axle/Gears: 8.5" 10-bolt 3.73 Posi
TPI is always funnest between idle and 3500 RPM. Past that it doesn't go much of anywhere.
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Joined: Jan 2005
Posts: 709
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From: North Carolina!
Car: 87 IROC
Engine: 406 sbc with Trick Flow heads, Hook
Transmission: Pro built 700R4
Axle/Gears: waiting on a new rear!!!!
Originally Posted by urbanhunter44
TPI is always funnest between idle and 3500 RPM. Past that it doesn't go much of anywhere.
Yup that about says it all.
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Originally Posted by rx7speed
ever drive a diesel
they can move mountains but don't go anywhere very fast
they can move mountains but don't go anywhere very fast

I highly doubt this guy got 385lb-ft at the wheels. The horsepower is a fuzz high, but the torque is off the charts.
Junior Member
Joined: Oct 2005
Posts: 55
Likes: 0
From: north carolina
Car: 04 Dodge SRT-4, 91 formula firebird
Engine: 2.4 L4, 305 tbi
Transmission: 5-speed, 700 r4
Originally Posted by InsaneIROC
I went to the dyno today to see what i have with the stock heads,exhaust manifolds and 2 1/4 stock catback befor I put on the AFR's and the exhaust I got 224 RWH and 385 RWT. So the heads and exhaust should really wake her up.
Member
Joined: Jan 2006
Posts: 110
Likes: 0
From: Oceanside NY
Car: 1989 Firebird Formula
Engine: LB9 305 tpi
Transmission: Auto
Axle/Gears: open 2.73's baby!!
Originally Posted by Mcdamit
maybe its cause I have a 305,, but it seems more like 2000 to 4000 rpm.. after that the fun kinda disappears.
i kinda wish it shifted at like 4300rpm or something instead of 5k Supreme Member
Joined: Aug 2001
Posts: 5,388
Likes: 2
From: Caldwell,ID
Car: 2005 BMW 545i
Engine: 4.4L N62B44
Transmission: 6spd auto
Axle/Gears: Rotating
Originally Posted by InsaneIROC
Do you know what a stall convertor thats why I have so much TQ. If I was going to lie I would have added some hourse power.
what rpm is this torque converter of yours. what size is the torque converter and what other supporting mods do you have?
while we are at it what rpm is your torque peak as well as horsepower peak?
btw you do know just about any automatic has a stall convertor right?
Senior Member
Joined: Mar 2004
Posts: 948
Likes: 0
From: Clearfield,Utah
Car: 1987 IROC, 1989 IROC
Engine: built 305, stock 305 tpi
Transmission: Corvette 700r4, t-5
Axle/Gears: 4.10 posi, 3.08 posi
what does a stall have to do with torque increase. they just let you get higher into the rpm band before you launch with out causing your car to power breaking, this guy is full of
Supreme Member
Joined: Aug 2001
Posts: 5,388
Likes: 2
From: Caldwell,ID
Car: 2005 BMW 545i
Engine: 4.4L N62B44
Transmission: 6spd auto
Axle/Gears: Rotating
you also realize that the dyno is going to adjust for the torque multiplication by the torque converter as welll. plus automatics generally have a higher powertrain loss then a manual as is.
Supreme Member
Joined: Aug 2001
Posts: 5,388
Likes: 2
From: Caldwell,ID
Car: 2005 BMW 545i
Engine: 4.4L N62B44
Transmission: 6spd auto
Axle/Gears: Rotating
if you know then that the dyno is going to adjust for the torque multiplication then why use the torque converter as an excuse?
Senior Member
Joined: Sep 2004
Posts: 765
Likes: 1
From: Chico/Antioch California
Car: 1989 iroc Z Hardtop
Engine: 350 tpi
Transmission: 700r4
Originally Posted by gp423
Seriously, once i hit 4k rpm i always look at the tach cause i feel like im not accelerating any more
i kinda wish it shifted at like 4300rpm or something instead of 5k
i kinda wish it shifted at like 4300rpm or something instead of 5kThen your plenum/runners need some work. Really go to town with a dremel, makes a big difference in the way power drops off up top. Headers help as well...
This is even more apparent with the 350...
And to the original poster: get those heads and exhaust on and post the dyno sheet!!!!
Supreme Member
Joined: Aug 2001
Posts: 5,388
Likes: 2
From: Caldwell,ID
Car: 2005 BMW 545i
Engine: 4.4L N62B44
Transmission: 6spd auto
Axle/Gears: Rotating
how did the torque converter do it's job on the dyno? sure it rotated your tranny I could do that in my mazda also. it's called a clutch. so whats your point?
Supreme Member
Joined: Aug 2001
Posts: 5,388
Likes: 2
From: Caldwell,ID
Car: 2005 BMW 545i
Engine: 4.4L N62B44
Transmission: 6spd auto
Axle/Gears: Rotating
you mean just like gears multiply torque also right?
so lets see your car is an 89 right?
comes with 345lbs/ft of torque
now in 3rd gear which is a 1.1 ratio but a stock rear end gear of 3.27 means the car puts out 1128.5lbs/ft of torque to the rear wheels due to torque multiplication so why doesn't that show up on the dyno? if you don't understand that I can explain it to you a little better.
how is this different then a torque converter? gears do the same thing right?
second you say that it multiplies toruqe but horsepower stays the same can you explain how that would happen?
third why do you resort to calling me a dumb ***? do you even really know what your talking about or do you have to resort to name calling like a little kid? and what does not knowing something make you a dumb ***? if so I'm sure that we can show everyone on this site including you is a dumb ***
so lets see your car is an 89 right?
comes with 345lbs/ft of torque
now in 3rd gear which is a 1.1 ratio but a stock rear end gear of 3.27 means the car puts out 1128.5lbs/ft of torque to the rear wheels due to torque multiplication so why doesn't that show up on the dyno? if you don't understand that I can explain it to you a little better.
how is this different then a torque converter? gears do the same thing right?
second you say that it multiplies toruqe but horsepower stays the same can you explain how that would happen?
third why do you resort to calling me a dumb ***? do you even really know what your talking about or do you have to resort to name calling like a little kid? and what does not knowing something make you a dumb ***? if so I'm sure that we can show everyone on this site including you is a dumb ***
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