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2.3 vs 2.0 with graphs!!!

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Old Nov 29, 2005 | 01:51 PM
  #16  
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Originally Posted by evodave
good info...but the tq seems low on the 2.0L for sure.... should be more like 440-455 lb/ft at least according to what i am used to seeing and my personal car...was this race or pump gas for the stroker? Do these cars have a .63 a/r ?
Both cars were run on pump gas and alky injection, both cars are equiped with GT35r w/ .63ar. If I upped the boost to around 30-31psi and add a bit more timing the tq would come up but these customers wanted a safe pumpgas tune and not a ragged edge tune.

Doug
Old Nov 29, 2005 | 01:59 PM
  #17  
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The 2.0L doesn't start making the same torque as the 2.3L until 7k+ RPMs. For a race car with weight penalties in mind, and a built motor that can rev, then the 2.0L is the way to go. But when you start taking into consideration drivetrain/syncro wear (from high RPM use), engine wear, drivability, fun factor, area under the curve, I'd take the 2.3L any day for a street car.
Old Nov 29, 2005 | 02:05 PM
  #18  
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Looks like the differences are quicker spool and definitely a larger tq increase
Old Nov 29, 2005 | 02:07 PM
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I would give up 10WHP for 80TQ anyday.
Old Nov 29, 2005 | 05:07 PM
  #20  
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From: Sunny Southern Cali !!!
TQ for me ALL day long ...
Old Nov 29, 2005 | 05:14 PM
  #21  
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Great info. Thanks for providing it!
Old Nov 29, 2005 | 05:18 PM
  #22  
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Hey, I can't see the graph! Please someone, copy and repost.
Old Nov 29, 2005 | 05:20 PM
  #23  
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From: La Isla Del Encanto
Smoggy,



Here you go man



Originally Posted by TopSpeed
There has been alot of debate on which is better, the 2.3 or the 2.0 block. Today I got the chance to test both. These graphs are from two different cars with the exact same mods except one is a 2.3l stroker and the other is 2.0.

Mods for both cars include, buschur intercooler and intercooler piping, full-race manifold with gt-35r, buschur alky kit, 272 cams, stock intake, and throttle body, buschur turbo back exhaust, and aem ems that I tuned.

Only difference in the two are displacement.

Run#11 is from the 2.0L block 28psi pumpgas and alky injection.

Run#12 is the 2.3L stroker again at 28psi with alky injection.

You can see that the stroker spools the turbo about 1500rpms quicker that the 2.0L, but doesn't make as much power up top.

Old Nov 29, 2005 | 06:02 PM
  #24  
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Awesome graph - thanks for doing the comparo.

The 2.0 indeed did make slightly more power but god damn, the driveability and fun factor of driving the 2.3L car far outweighs that extra power of 7000rpm. IN fact, if both did a roll-on race from 4k the stroker would pull much harder and in fact, I dont know if that 2.0s extra power could even make up for it!

Damn it I want a stoker so badly.
Old Nov 29, 2005 | 07:22 PM
  #25  
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Originally Posted by TopSpeed
We built the 2.0L, but I am not sure who's kit the 2.3 was. There are many reasons why the 2.0L makes more power up top than the 2.0L. I would think that if these cars had ported heads or sheet metal intakes the curves would look alot different. However both these cars had stock intakes, stock heads, stock throttle body, which my have been hurting the flow needed for a 2.3L..... but thats only a guess.

Doug
Doug thanks for sharing - This is very helpful information.
Old Nov 29, 2005 | 07:38 PM
  #26  
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Questions:
1. This is a stroker kit right? Not a 2.4 4g64 block right?
2. Who owns the 2.3 with 35R?
3. What 2.3 kit does he run? Buschur's or AMS'?
I am awestruck by it's similarities to my car's power and curve.
Old Nov 29, 2005 | 07:42 PM
  #27  
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I feel so much better about my choice of a 35r kit and 2.3L. Thanks for the info.
Old Nov 29, 2005 | 07:47 PM
  #28  
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Look at all that area under the curve compared to the 2.0L. A nice curve at that. No contest! 2.3L
Old Nov 29, 2005 | 07:54 PM
  #29  
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Doug, do both motors have the same compression ratio?
Old Nov 29, 2005 | 08:21 PM
  #30  
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From: s.l.c ut
you could easily rev that 2.0 to 9k & have just as wide of a power band than the stroker!!!
also the tq curve on the stroker falls off quick & the 2.0 is nice & flat i kinda like the 2.0 hp & tq curve. the .63 ar probably doesn't help the stroker though.
thanks for posting that up..


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