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2 stroke or not 2 stroke

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Old Aug 16, 2005 | 08:56 AM
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mikiblueeyes's Avatar
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From: FAAAR FAAAR AWAAY :)
Talking 2 stroke or not 2 stroke

So far have stockish turbo (WR) and all the typical upgrades.

What do you guys think, should i do stroker 2.3 L block or just use stock short block with build head?
What RPM can each each option be taken to???
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Old Aug 16, 2005 | 01:59 PM
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From: Lake Mary,FL
Originally Posted by mikiblueeyes
So far have stockish turbo (WR) and all the typical upgrades.

What do you guys think, should i do stroker 2.3 L block or just use stock short block with build head?
What RPM can each each option be taken to???
With a stroker you wont be able to rev as high as a 2.0
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Old Aug 16, 2005 | 08:41 PM
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From: FAAAR FAAAR AWAAY :)
any opinions from people who can share their experience?
please
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Old Aug 16, 2005 | 08:57 PM
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Originally Posted by EVIL_EVO_VIII
With a stroker you wont be able to rev as high as a 2.0
You can rev to 9000rpm. It's far enough
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Old Aug 17, 2005 | 10:36 AM
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I am talking about stock bottom end and build head, is really possible to rev it up to 9000 to be driven that way?? David from Buschur said 7500 safely???

Please advise
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Old Aug 17, 2005 | 10:38 AM
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From: Colorado
Originally Posted by platinumspecv
You can rev to 9000rpm. It's far enough
Bad idea.
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Old Aug 17, 2005 | 11:05 AM
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RPMS kill engines. The bearings on the stock bottom end wont be friends with you for very long if you rev it out to 9k. Super stiff valvesprings will allow the head to rev to 9k, but the bottom end will not like it one bit.

Its kinda pointless just so you can say it rev's to 9k. You'll be paying more for more expensive parts, you will have worse reliability, and you won't be driving anything THAT fast. If you wanted a 9k engine, you should have got a K series honda.

Plus this is not to mention you would need some SERIOUS cams and turbo to make power above 8k

If you dont do it often, 8k will be ok for quite a long time. If you actually drive the car the way its meant to be I wouldn't surpass 7500.

If I were you I would probably just buy a head package. after transferring over to EVO's from Honda's I notice that the EVO's take much more boost to hit the same power level on an equal displacement/equal turbo motor. This gets me thinking that the head in the EVO doesnt flow the best, and its not like it should stock anyways (because it's turbo it hardly matters in stock form) This way you will be able to make more power on the same amount or possibly even less boost. What the means is that at the same power level you will have lower charge temps, which is great on a turbo car.

Remember ALL BOOST IS, IS RESTRICTION TO FLOW. Increase the head ability to flow and you will consume the same amount of air at a lower boost level.


Look at some of the fastest DAILY DRIVEN evo's, Id be willing to bet they dont rev much over 8k if at all. Also consider that to make power to 9k you, like I said before will need a REALLY SICK cam setup... When designing a cam there are only 2 basic things you can do, go for low RPM power, or High rpm power. If you moved your RPM range up from 7000 redline to a 9000 redline you will be losing just as much low end power as you gained top end power. The result? More lag, not as fun around town, etc........ Now, since at lower RPM's you will be making less power, which means you are flowing less air, which means you are spitting less fuel, which technically means that you might have slightly better gas mileage in the low rpm range.

Theres a reason I came from a peaky 1.6 FWD powerplant, to a torquey 2.0 awd powerplant.....


Just somethings to consider
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