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Old 05-16-2005, 02:11 PM   #1
warpath
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Default Best way to increase torque?

Before i get do a search, i did.


how can i get more torque out of the 2.0? Besides opening up the exhaust. i know going to a 3" exhaust can actually drop torque. changing gears? what is a realistic number the 2.0 can reach with out pushing the limits of the stock bearings, connecting rods,etc.

as always thanks for the help.
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Old 05-16-2005, 02:26 PM   #2
mbiker97
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Quote:
Originally Posted by warpath
Before i get do a search, i did.


how can i get more torque out of the 2.0? Besides opening up the exhaust. i know going to a 3" exhaust can actually drop torque. changing gears? what is a realistic number the 2.0 can reach with out pushing the limits of the stock bearings, connecting rods,etc.

as always thanks for the help.
A 3" exhaust will give you more torque everywhere in the powerband. It will NOT make less torque than stock. Do uppipe, full turbo back, IC hoses and ECU reflash and enjoy your new found power.

Leaving the stock exhaust on is a recipe for a slow car.
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Old 05-16-2005, 02:38 PM   #3
23b_Rex
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jdm swap
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Old 05-16-2005, 03:06 PM   #4
jigga
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bump up the boost..
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Old 05-16-2005, 04:47 PM   #5
brianbot5000
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Default

- spool up the turbo at lower RPMs (by opening up exhaust, engine management, etc). Just an uppipe/downpipe should make a noticable bump in lower end torque, especially around 2500-3000rpm.
- Gears would certainly increase low end torque, but I would think at the cost of higher end torque (that is, if my Grand Turismo training has taught me anything).
- Lighten the the unsprung weight and rotational mass; lighter wheels can have a noticable effect. Friend of mine put OZ Superleggeras (which are about 13lbs a piece I believe) and noticed a difference.

It's never going to be a torque monster though.

Oh - and as far as the exhaust diameter -- the debate has been out on the 3" vs 2.5" diameter exhaust and which will generate more lower end torque. According to Cobb, a 3" exhaust that's properly designed will generate just as much or more torque than a 2.5". Either way you go will be OK though - 2.5" shouldn't restrict you any unless you're making a lot of power (300+). But you probably have more choices by going 3". Both are better than stock diameter.
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Old 05-16-2005, 05:09 PM   #6
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USDM STi block
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Old 05-16-2005, 05:14 PM   #7
Davenow
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starting at the block

Port the exh manifolds and heat wrap them
Port the Up pipe to match the manifolds (the lip)
Port the exh housing
Catless turboback exh, 3 inch all the way out.
Set lower timing numbers in the spoolup area in the timing maps of your EM to get EGT's up. Lean fueling down a bit there as well.
RA gearset in your trans
Lighter wheels
Lighter, smaller diameter tires

You are still not going to have the torque you would have with a 2.5 block swap, but it will be MUCh better than stock...
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Old 05-16-2005, 05:16 PM   #8
Killian Maynard
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Quote:
Originally Posted by silver arrow
USDM STi block
I love replies like this.

Q:"How do I get more torque out of my 2.0 liter engine?"

A:"replace it with a 2.5 liter engine." <------ Must have read a different question altogether


You could run a stroker kit on your 2.0. That would give you some more torque. IIRC Cobb tuning has a 2.2 liter stroker kit available.
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Old 05-16-2005, 08:09 PM   #9
bofh
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Quote:
Originally Posted by Killian Maynard
I love replies like this.

Q:"How do I get more torque out of my 2.0 liter engine?"

A:"replace it with a 2.5 liter engine." <------ Must have read a different question altogether


You could run a stroker kit on your 2.0. That would give you some more torque. IIRC Cobb tuning has a 2.2 liter stroker kit available.
I love how you dog them, and then do it yourself!

"No replacement for displacement."

However, you can port and ceramic coat the heads, and everything after them. Also throttle body, and TGV. Y pipes, and turbo inlet hose. Intake silencer removal. NOS. That about covers it under 2.0 liters.
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Old 05-16-2005, 10:12 PM   #10
ronf
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Quote:
Originally Posted by Davenow
Set lower timing numbers in the spoolup area in the timing maps of your EM to get EGT's up. Lean fueling down a bit there as well.
a more detailed numbers or examples please. Thanks
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Old 05-17-2005, 07:34 PM   #11
silver arrow
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My point was, the least expensive way to get torque on the 2.0 is to replace with a $1700 USDM block. Do the math and even with supporting mods comes out as a good alternative. Add FP $100, injectors $400 ,VF22 $700 and tune it = >300hp/300ft/lbs across a wide rpm range.
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