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AMS2.3RR vs BR2.3L vs BR2.0L

Old Dec 29, 2007 | 12:24 PM
  #31  
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Both shop have proven their names and reliability.

Both shops have they're set of die hard customers. You'll never be able to change those oppinions.

AMS will never put a product on the market without vigorous testing, either on thier TA car, drag car or Martins street car.

The choice is yours, but the mechanical advantages are a fact. Now just choose your flavor.

Dont hate cuase it cost 2k more to participate.

I mean, not everyone enjoys a $150 Kobe Steak either.

Anyone of these engines with a good set of supporting mods and a pro dyno tune will be an absolute blast. But the ultimate setup is obvious.

Last edited by LDOGGYDIZZLE; Dec 29, 2007 at 12:29 PM.
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Old Dec 29, 2007 | 12:31 PM
  #32  
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Originally Posted by dxbevo9
does the buschur racing block come O-ringed or is that an extra option?
o-ring block is an option depending on your HP goals..
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Old Dec 29, 2007 | 12:43 PM
  #33  
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Originally Posted by LDOGGYDIZZLE
Both shop have proven their names and reliability.

Both shops have they're set of die hard customers. You'll never be able to change those oppinions.

AMS will never put a product on the market without vigorous testing, either on thier TA car, drag car or Martins street car.

The choice is yours, but the mechanical advantages are a fact. Now just choose your flavor.

Dont hate cuase it cost 2k more to participate.

I mean, not everyone enjoys a $150 Kobe Steak either.

Anyone of these engines with a good set of supporting mods and a pro dyno tune will be an absolute blast. But the ultimate setup is obvious.
2.3RR??
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Old Dec 29, 2007 | 12:43 PM
  #34  
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Originally Posted by WongFu
Ok lets break it down like this. The stroker can rev to 8k but i wouldnt do it. next Ok the spool is alittle faster then a 2.0 but only 500 in 1st 300 in 2nd and 3rd and [B]200[B]
Not from my experience. And I have datalogs to prove it when I switched from a 2.0 to a 2.4.

I'd say 500 rpm is a conservative estimate when going to a stroker. I went from 30 psi at like 5300 to 4500. So 800 rpm diff in spool going from 2.0 to 2.4. I suspect a 2.3 would yield similar results.

GT35R or bigger on a 2.0 litre is awful IMHO. With a 2.3/2.4 it becomes more fun.
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Old Dec 29, 2007 | 12:44 PM
  #35  
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Originally Posted by USP Motorsports
o-ring block is an option depending on your HP goals..
whats the benefit of the O-ring?
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Old Dec 29, 2007 | 12:46 PM
  #36  
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Originally Posted by crcain
Not from my experience. And I have datalogs to prove it when I switched from a 2.0 to a 2.4.

I'd say 500 rpm is a conservative estimate when going to a stroker. I went from 30 psi at like 5300 to 4500. So 800 rpm diff in spool going from 2.0 to 2.4. I suspect a 2.3 would yield similar results.

GT35R or bigger on a 2.0 litre is awful IMHO. With a 2.3/2.4 it becomes more fun.
how high do you rev your 2.4? and how often?
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Old Dec 29, 2007 | 12:53 PM
  #37  
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Originally Posted by dxbevo9
how high do you rev your 2.4? and how often?
Magnus said 8k for reliability.

You have to realize though...

There is no purpose to revving a stroker + GT35 much past 7.5k... you simply are well out of the powerband by then. YOU NEED TO SHIFT!
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Old Dec 29, 2007 | 12:56 PM
  #38  
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really? i thought the 35r likes the hi rpm..no?
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Old Dec 29, 2007 | 01:21 PM
  #39  
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check this one out, tell me what do you think
https://www.evolutionm.net/forums/sh...d.php?t=313778
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Old Dec 29, 2007 | 01:59 PM
  #40  
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Originally Posted by dxbevo9
really? i thought the 35r likes the hi rpm..no?
Check this thread out:

https://www.evolutionm.net/forums/sh...ighlight=shift

In it I posted a dyno sheet of a 2.2 + GT35R and asked what the ideal shift point is.
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Old Dec 29, 2007 | 02:17 PM
  #41  
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Originally Posted by dxbevo9
really? i thought the 35r likes the hi rpm..no?
dude...
let me break it down for you cause you're gonna get mixed results...
I'm not saying to buy the 2.3RR just because I have.

If you're going for all out drag racing..and will not be participating in any other events..then go a 2.0

If you look at my ride..i'm on evo #2...
my first one was equipped with a 35R and built 2.0...
seemed perfect at the strip but was absolutely slow spooling on the road. To pass people I would have to downshift.

If you think you will be doing drag..but still some autocross events and such..then go for a stroker..

Reason I went for the 2.3RR is because it seemed to be the best of both worlds. I want to drag this car but still be able to compete in circuit, autocross etc.

so ask yourself this..
strictly drag=2.0
drag + other=2.3

you can even answer it for yourself when you look at the same two shops in comparison. AMS and Buschur both use strokers in time attack cars! In all out drag events..they stick to the 2.0/2.1! They are using a 42R in their drag cars...so they need more rpm than even the 2.3RR can provide so they stick with 2.0

In my situation..i'm using the 37R which should be fine seeing 9K rpms. When the HTA37R comes out I'll upgrade to it...and that should be an even sweeter setup. 2.3 & HTA37R

Last edited by 11secEVO7; Dec 29, 2007 at 03:41 PM.
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Old Dec 29, 2007 | 02:36 PM
  #42  
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AMS has a 2.1L in there drag car not a 2.0L
Link:
http://www.amsperformance.com/amsdragevo.php

Tom
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Old Dec 29, 2007 | 03:36 PM
  #43  
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Originally Posted by crcain
Not from my experience. And I have datalogs to prove it when I switched from a 2.0 to a 2.4.

I'd say 500 rpm is a conservative estimate when going to a stroker. I went from 30 psi at like 5300 to 4500. So 800 rpm diff in spool going from 2.0 to 2.4. I suspect a 2.3 would yield similar results.

GT35R or bigger on a 2.0 litre is awful IMHO. With a 2.3/2.4 it becomes more fun.

But you have to remember the 2.4 is a totaly diffrent block so the VE will be totaly diffrent then the 4g63. I also have been in a 2.3 and a 2.4 and i can say the 2,4 was totaly diffrent souly based off the diffrent VE ot the 2 motors. so with the extra displacement to a nother .1 liters could be interprated into maybe 200 or so RPMs and that still puts my numbers close to what your logging. And also the tune had alot to do with my spool cause my tuner has a few ideas of just a little bit faster spool but it isnt much.
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Old Dec 29, 2007 | 08:00 PM
  #44  
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I am not going to get into which company I think you should go with, we are both good.

I'll give some input though.

I've dyno'd 2 liters, 2.1 liters, 2.2 liters, 2.3 and 2.4 liters. I have never built a 2.1 or 2.4 (one nitrous only 2.4 but that's another story).

A stroker engine will absolutely spool a turbo faster, it's a no brainer, longer stroke, more cubic inches, going to spool faster.

I have built stroker engines for a lot of guys, made big power with them and I have never had an RPM related failure in any of the stroker engines I have built. Dieter's car (Time Attack car from California) runs our 2.3 and that engine has been in there for 2 seasons. He has no plans of taking it out. He road races it with a 8,500 rpm rev limit. I generally suggest keeping the rpm down to 8500 rpm on the strokers BUT with that said, I have never seen one of ours fail from anything that can be linked to RPM. Hell I can't even remember the last one I've seen fail at all. So could it be rev'd higher, yes, I am sure it can. If you do the calculations on the pistons speed though it gets scarey. The on paper calculations are the only reason I recommend 8500 rpm for a max.

The 2 liter will spool slower for sure. The RPM limits are rediculous. Rev limiter is USUALLY set at 10,300 rpm in our drag car. My RS is set at 9875 rpm. Both cars see the rev limiter regulary. Sometimes we set it higher in the drag car if it is hitting it constantly, no fear of 11,000 rpm, no failures, no problems.

I can also say that I have never seen ANYONES stroker engine make more power at high RPM than the 2 liter. This goes for ANY engine, 2.1, 2.2, 2.3, 2.4. The 2 liter always seems to come out on top at high RPM.

The decision is yours to make, this is just some input on what I think about some differences in the displacements.
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Old Dec 29, 2007 | 08:17 PM
  #45  
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That being said , I will go 2.0 on my next build for sure !!
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