mods needed to create torque
#1
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mods needed to create torque
I just purchased an 88gxl about 3 months ago. I have tried to do as much work on it as posible. So far I had the engine rebuilt, did most of the poly urethane suspension upgrade. Currently I'm working on the suspension.
1. But was just wondering what mods would be suggested to create torque in this engine?
(Would like to keep it N/A if possible.)
1. But was just wondering what mods would be suggested to create torque in this engine?
(Would like to keep it N/A if possible.)
#2
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you are probably going to be hard pressed to find a way of making low-end torque in a rotary. ask around, but theres not much you can do other than to turbo it to make any.
#7
Im sorry to say, but you should have streetported it when you had the motor apart. Adding a full exhaust system will help out dramatically, and a cold air intake will compliment that nicely.
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#9
wiring the ports open will kill your low end, they were designed to be closed under 4,000 rpms to help with the low end torque and open after 4,000 to increase air flow and give more high end power
#10
streetporting will help with low end torque? Man, that's a good one. Perhaps wiring your sleeves open will give you more bottom end too?
#11
wiring the ports open will kill your low end, they were designed to be closed under 4,000 rpms to help with the low end torque and open after 4,000 to increase air flow and give more high end power
#12
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Since you are staying NA:
1) Make sure the aux ports (6-ports) are working.
2) Make sure the aux ports (6-ports) are working.
3) Make sure the aux ports (6-ports) are working.
1) Make sure the aux ports (6-ports) are working.
2) Make sure the aux ports (6-ports) are working.
3) Make sure the aux ports (6-ports) are working.
#13
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Streetporting will produce less low end torque due to the loss in intake velocity.
Best advice is to make sure the 6 port system is working properly (SEARCH!!!)...
If you want to go to extremes, forced induction is always possible. Both superchargers and turbochargers result in basically the same increase in low end, but are not small projects to undertake.
Also switching to a different rear end ratio will make a difference, as well as running smaller tires.
Best advice is to make sure the 6 port system is working properly (SEARCH!!!)...
If you want to go to extremes, forced induction is always possible. Both superchargers and turbochargers result in basically the same increase in low end, but are not small projects to undertake.
Also switching to a different rear end ratio will make a difference, as well as running smaller tires.
#14
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Originally posted by BDoty311
The low-end might not be as spectacular as the top-end, but it is definately better than with stock ports. By low-end I mean 2500-4500rpm
The low-end might not be as spectacular as the top-end, but it is definately better than with stock ports. By low-end I mean 2500-4500rpm
Either way, a small streetport would have little effect on the low end, but if anything it will affect it ADVERSELY. A large street port/bridge port will reduce low end dramatically.
Do I have one? No. But I researched the subject extensively. While the top end gains are incredible, the low rpm range will suffer. I'm sorry if it's hard to accept that, but it's true. Same with backpressure. Low end NEEDS backpressure to help suck the exhaust gasses out... there's a very large subject concerning exhaust pulses and how they help draw out the gasses, but we won't get into that.
Moral of this story, you wont get more low end by street porting your motor. Top end, yes.
#19
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Originally posted by BDoty311
Since when has changing your gear ratio and tire size increased torque?? And you guys thought my streetport statement was BS.
Since when has changing your gear ratio and tire size increased torque?? And you guys thought my streetport statement was BS.
Porting will result in less low end, but better torque higher up.
#20
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Originally posted by BDoty311
Since when has changing your gear ratio and tire size increased torque??
Since when has changing your gear ratio and tire size increased torque??
Originally posted by Aaron Cake
Smaller tires/new rear end will result in faster accelleration. Will give the illusion of more torque.
Smaller tires/new rear end will result in faster accelleration. Will give the illusion of more torque.
http://www.geocities.com/budb3/arts/gear/gfun.html
Originally posted by BDoty311
BTW- he asked how to make torque, and a streetport will do that.
BTW- he asked how to make torque, and a streetport will do that.
For those who are not engineering geeks, Horsepower = Torque * rpm / 5252, so you can't have horsepower without torque.
Last edited by Evil Aviator; 04-21-03 at 12:18 AM.
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Originally posted by Evil Aviator
For those who are not engineering geeks, Horsepower = Torque * rpm / 5252, so you can't have horsepower without torque.
For those who are not engineering geeks, Horsepower = Torque * rpm / 5252, so you can't have horsepower without torque.
So say you have 100 hp. At 5,252 RPM then you will have 100 ft/lb.??
So what if you relatively rev it up to 10,504 rpm's, you will have 50 ft/lb??
So does that mean if you keep it at a constant 2,626 rpm you will have 200 lb/ft.??
Please enlighten me.
Tim
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Originally posted by rotary>piston
yes but a lot of hp doesn't equal a lot of torque. Just look at the Renesis (250hp, ~150 ft/lbs)
yes but a lot of hp doesn't equal a lot of torque. Just look at the Renesis (250hp, ~150 ft/lbs)
Horsepower is simply torque relative to rpm, and nothing more.
Originally posted by NA_VersionFC3S
So say you have 100 hp. At 5,252 RPM then you will have 100 ft/lb.??
So say you have 100 hp. At 5,252 RPM then you will have 100 ft/lb.??
Check out my Miss Cleo bit... With my Evil crystal ball I can see the next dyno sheet that you look at. Go ahead, choose one for any engine you like, just as long as the dyno sheet is in horsepower and lb-ft torque units (not Kw, Ps, or other units). Did you find a dyno sheet yet? OK, now with my amazing Evil powers I will predict that the horsepower and torque curves will meet at exactly 5252rpm. I got it right, didn't I? With my Evil crystal ball I can predict YOUR future by calling 900-EVL-AV8R for only $10/minute. All donations go toward the 20B money pit. The first 10 callers will receive a free bop in the head for not realizing a joke when they see one.
Originally posted by NA_VersionFC3S
So what if you relatively rev it up to 10,504 rpm's, you will have 50 ft/lb??
So does that mean if you keep it at a constant 2,626 rpm you will have 200 lb/ft.??
So what if you relatively rev it up to 10,504 rpm's, you will have 50 ft/lb??
So does that mean if you keep it at a constant 2,626 rpm you will have 200 lb/ft.??
Last edited by Evil Aviator; 04-21-03 at 01:53 AM.
#25
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He prob thought he got more low end torque when he got his engine rebuilt/streetported because his engine was low compression before and since rebuilt it's got more low end torque with a rebuild than before the rebuild.