Dont know if I should sleeve or not, how much horsepower is streetable?

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gunsnbam

New Member
I have decided on building a turbo lsvtec. My plan is to install the engine already built for turbo and then put the turbo together and install later. JE pistons and Eagle connecting rods are on the parts list but im wondering about sleeving. Forged pistons and connecting rods would be safe at 15psi right? and of course if I wanted say 30psi it would no question need to be sleeved. I would not be hitting the boost all the time, more like on occasion. This car would be used as a some what daily driven car with trip to the drag strip every now and then. 15psi sounds about right for me power wise but would sleeving make it alot even safer or is that only needed when wanting a lot more power? Another question I have is how much horsepower is "streetable"? a little more then 300hp is my goal. Would this number be safe with only forged pistons, connecting rods, a well built engine, and a good tune?
 

austin20110

Active Member
we say it alot on here dont worry abou thow much psi your going to run... but yea sounds like it should hold up.. just make sure you konw what your doing before you do it or have it professionaly done

take it to your machine shop and tell them your goals and ask what they would recommend, cant go wrong with that
 

Matts96HB

.
Moderator
VIP
I have decided on building a turbo lsvtec. My plan is to install the engine already built for turbo and then put the turbo together and install later. JE pistons and Eagle connecting rods are on the parts list but im wondering about sleeving. Forged pistons and connecting rods would be safe at 15psi right? and of course if I wanted say 30psi it would no question need to be sleeved. I would not be hitting the boost all the time, more like on occasion. This car would be used as a some what daily driven car with trip to the drag strip every now and then. 15psi sounds about right for me power wise but would sleeving make it alot even safer or is that only needed when wanting a lot more power? Another question I have is how much horsepower is "streetable"? a little more then 300hp is my goal. Would this number be safe with only forged pistons, connecting rods, a well built engine, and a good tune?

For a little more than 300hp, you're perfectly fine with just forged internals.

Anything above 400-450 whp you want to seriously consider sleeving.
 

efhondakid

My name is Byron.
For a little more than 300hp, you're perfectly fine with just forged internals.

Anything above 400-450 whp you want to seriously consider sleeving.

Yep, and 250-300whp is plenty to have fun with.
 

|Chaz|

Well-Known Member
VIP
250hp is plenty in a Civic. Although I think Matt would argue with that... lol.
 

gunsnbam

New Member
Thanks guys, what do you think would be a good turbo for this? I want a pretty quick spool, at 4-5k? I was thinking in the t3/t4 range. I want to keep ac and ps btw.
 

efhondakid

My name is Byron.
Thanks guys, what do you think would be a good turbo for this? I want a pretty quick spool, at 4-5k? I was thinking in the t3/t4 range. I want to keep ac and ps btw.

Learn how to read to compressor maps and match a turbo to your needs.
 

gunsnbam

New Member
Learn how to read to compressor maps and match a turbo to your needs.

Yeah iv been looking and everybody talks about compressor maps and studying them. Do you know a good link to something that teaches u?

edit: nvm I found a site
http://www.lovehorsepower.com/MR2_Docs/compressor_flow_maps.htm

and wow, once you start to understand it its pretty easy to be SURE of the size you need for whatever goals you have. thanks.
 
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99sidude

Moderator
Moderator
VIP
Even 250 whp is a lot if the car has an open diff. I'm right around the 250 whp mark, and I don't want any more power until I get a lsd in the thing. Spinning my all season 205's at 65 mph = no fun.

Focus on suspension and how your going to get the power to the ground first, and the car will be much more streetable with the kind of power your looking at.
 

efhondakid

My name is Byron.
Even 250 whp is a lot if the car has an open diff. I'm right around the 250 whp mark, and I don't want any more power until I get a lsd in the thing. Spinning my all season 205's at 65 mph = no fun.

Focus on suspension and how your going to get the power to the ground first, and the car will be much more streetable with the kind of power your looking at.

My friend jasons Teg is like 400ish with an open diff and its no good. He has some good sticky tires on it, but torque steer is his biggest problem.
 

b16stalyun

New Member
im running a civic w/ 350whp with a electronic boost solinoid running boost by gear. ive got it set up for wastegate in 1st, 13psi in 2nd and 18 in 3rd,4,5 with some boost creep. ive got a 50trim .48 a/r with d2 coilovers. it runs very smooth and gets the power to the ground very nicely. forged internals and built head. no sleeves.

i wouldnt say you will need sleeves unless you plan on going into the 400+ range. even then you are pushing the issue on pump gas. if you plan on using race gas, you problably want sleeves.

hope this helps.
 
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