As some of you are aware, my Type R has a blown engine and is currently in the process of being rebuilt.

I feel I'm coming to a cross roads with what I want from the car as far as power goes. In stock form the car is very nice indeed, but once it was turbo charged, having that power there, was quite a nice feeling. So going back to stock is out of the question.

I'm having some second thoughts about keeping it turbo charged and am starting to think about building it up N/A. Again, I like the idea of having that power there with the turbo, but I'm starting to think about reliability issues because as of right now and in the near future, another blown engine would be no good and would moderately set me back financially.

Regardless, I still have time to come to a conclusion but the block is being sent off to AEBS for the bore/sleeve job within the next week or so. As far as turbocharging, the block is getting bored out to 84mm and getting CP 9.0:1 pistons (along with all the other bottom-end, bullet proof parts). I'm wondering if an N/A built engine would benifit from an 84mm bore with high compression pistons...say 12.5:1?

I am currently searching the web to do some research and to come to a conclusion. As I've stated in several posts, all of your opinions are valued and I think many of you out there are very intelligent people. If you'd like to chime in with your opinion, I'd greatly appreciate it. Mahalo in advance for your replies.

Aloha,
Brandon

*EDIT: If this helps any....the car currently has:
T3/T67 turbo "good up to 620whp" - Full Race
Front Mount Intercooler
ECU - Chipped P28 w/ uberdata
700cc injectors and all relative fuel management upgrades
3" exhaust with testpipe
Head is being fully rebuilt with Rocket Motorsports setup
St Corsa cam gears
TODA timing belt


Modified by Haleiwa-Brando at 11:58 PM 2/14/2005

 

Brandon, hows the weather?

Anyways, my 2.0L should be done by the end of March. CP 12:1 85mm bore x 87.2mm stroke. With 50mm ITB's and my uberdata tuning, with stock head, I'm hoping for 215whp with a very broad torque curve from the stock cams. This is going to be very streetable, and excellent for track duty.

This is nowhere near what power you can make with 9:1 forged pistons and a sleeved block. With that combo and the right turbo/tuning, 500+whp is easy. So it really depends on what you want to do with the car. AEBS builds good blocks, so reliability under 20psi should not be an issue, especially if you tune it well. On a low boost setting, say 12psi or so, you will be making close to, or more than 400whp, of course depending on turbo and a few other important attributes.

I wouldn't stress too much about reliability with that setup, there are people running 50k+ miles with sleeved boosted setups. If you want to go wild to the point where you are going to make 230+whp N/A, reliability may even be less than that of a boosted motor, making more power. Again, its what you want to do with the car.

Good luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Brandon, hows the weather?

This is nowhere near what power you can make with 9:1 forged pistons and a sleeved block. With that combo and the right turbo/tuning, 500+whp is easy. So it really depends on what you want to do with the car. AEBS builds good blocks, so reliability under 20psi should not be an issue, especially if you tune it well. On a low boost setting, say 12psi or so, you will be making close to, or more than 400whp, of course depending on turbo and a few other important attributes.

Good luck. </TD></TR></TABLE>All that you just had said Marshall about the turbo issue, I was going to say the same thing to him