New Parts!!!! YES Also Help from N/A Guys Upddate Pg 6 12/25/06
There's no way you'll get a 1/4" overbore in there... there isn't anywhere near that kind of room between cylinders. If you're boosting it, stick with 75s, or if you have to overbore the block to clean up the walls, go for the standard .5mm rebuild overbore. You'll want as much sleeve in there as you can keep.
I think now you gotta slow down and pick a direction before you go any further. You're gonna want to break in the new motor without boost at first anyways, get the rings to seat and let the bearings break in some before you beat on it.
Slow down... one piece at a time here. If you're going boost, blow a stock motor and build a second one. Get a feel for it (and test your tuner's competency) before you go too insane and pop a built motor that you threw an assload of money into.
I think now you gotta slow down and pick a direction before you go any further. You're gonna want to break in the new motor without boost at first anyways, get the rings to seat and let the bearings break in some before you beat on it.
Slow down... one piece at a time here. If you're going boost, blow a stock motor and build a second one. Get a feel for it (and test your tuner's competency) before you go too insane and pop a built motor that you threw an assload of money into.
There is gl@ss in my @SS...Joined: Apr 2005
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From: Portsmouth, Ohio
Rep Power: 321 
man, this thread went downhill fast... it's always the people with the least experience on the topic with the most negative comments.
as for the aem ems, if you read their website, it says you need to retain your factory ecu so that the multiplex functions will work, including your immobilizer, if youre doing an a/t to m/t ecu swap, you'll also have to do the immobilizer flash. just thought you might want to add that to your costs.
as for the aem ems, if you read their website, it says you need to retain your factory ecu so that the multiplex functions will work, including your immobilizer, if youre doing an a/t to m/t ecu swap, you'll also have to do the immobilizer flash. just thought you might want to add that to your costs.
As for what boilermaker said. Test out the waters. What's another D17? $250? Boost it and see what the tuner is like. Build the other motor up while your working out your stuff and swap the new one in. Take your time and it should all work out nicely.
I sure hope you aren't talking about me.
As for what boilermaker said. Test out the waters. What's another D17? $250? Boost it and see what the tuner is like. Build the other motor up while your working out your stuff and swap the new one in. Take your time and it should all work out nicely.
As for what boilermaker said. Test out the waters. What's another D17? $250? Boost it and see what the tuner is like. Build the other motor up while your working out your stuff and swap the new one in. Take your time and it should all work out nicely.
Joined: Jul 2002
Posts: 13,151
Likes: 3
From: Washington DC
Rep Power: 424 well it depends if you want useful power or a number off a dynograph. Bigger turbos will make more power, but you'll have very little full spool power. A smaller one won't net as high a number, but it'll have more "area under the curve".... in otherwords it'll make power faster and stay there. A GT28R is good to about 280, a GT28RS (comparable in flow rate to a T3 Super 60) is good for about 300-310 and a GT2871R is good well into the 300s. If you got for the RS or 2871, take the option for the externally gated T31 turbine housing (T3 foot). I personally think the 3071 is getting a bit big for this motor.
All 3 of those are going to spool very fast and have plenty of steam to blow all the way to the redline, and they're full of the goodies that you'll like to have... Water cooling, dual ball bearings, inconel wheels, etc... Lots of useable power.
A lot of "which turbo" is going to depend on the motor... the more compression its got, the less boost you'll safely be able to run... need to look into your effective compression and keep it somewhere in the realm of "safe" on pump gas, a larger turbo will make more power with less boost. A lot of people seem to want to oversize the turbo for some reason, I don't get it. Don't buy a turbo thats good for 600 HP if you only plan on making 285, its just a waste because the turbo won't run in its efficiency band. Size it so that you're running it in the turbo's power range. Leave some room to grow, but don't overdo it.
All 3 of those are going to spool very fast and have plenty of steam to blow all the way to the redline, and they're full of the goodies that you'll like to have... Water cooling, dual ball bearings, inconel wheels, etc... Lots of useable power.
A lot of "which turbo" is going to depend on the motor... the more compression its got, the less boost you'll safely be able to run... need to look into your effective compression and keep it somewhere in the realm of "safe" on pump gas, a larger turbo will make more power with less boost. A lot of people seem to want to oversize the turbo for some reason, I don't get it. Don't buy a turbo thats good for 600 HP if you only plan on making 285, its just a waste because the turbo won't run in its efficiency band. Size it so that you're running it in the turbo's power range. Leave some room to grow, but don't overdo it.
Last edited by Boilermaker1; Dec 28, 2006 at 11:46 PM.
Joined: Apr 2005
Posts: 5,066
Likes: 0
From: Portsmouth, Ohio
Rep Power: 321 You questioning my knowledge of cars is dumb if you were talking about me. Do you know how much i know or don't know about a motor or building a motor? No, you don't. I'm not gonna say i know more than you, because i don't know how much you know, nor do I care. People talk so much **** on here, sitting behind a computer makes people big and bad. But i would love them to say it to someones face.
I am not here to argue with people over someone else's car. Him and i worked it out and got the misunderstandings out of the way.
I am not here to argue with people over someone else's car. Him and i worked it out and got the misunderstandings out of the way.
Registered!!
Joined: Apr 2006
Posts: 601
Likes: 0
From: socal
Rep Power: 251 to bad theres no ignore button.....funny how things can get offtopic in a short amount of posts.....
lets bring it back..
i doubt he can hit 200 all motor. i bet 170 would be if any..a realistic goal. but like everyone says...jus build the motor, prove us wrong. and have a nice life
lets bring it back..
i doubt he can hit 200 all motor. i bet 170 would be if any..a realistic goal. but like everyone says...jus build the motor, prove us wrong. and have a nice life
to bad theres no ignore button.....funny how things can get offtopic in a short amount of posts.....
lets bring it back..
i doubt he can hit 200 all motor. i bet 170 would be if any..a realistic goal. but like everyone says...jus build the motor, prove us wrong. and have a nice life
lets bring it back..
i doubt he can hit 200 all motor. i bet 170 would be if any..a realistic goal. but like everyone says...jus build the motor, prove us wrong. and have a nice life
Last edited by Civicman1988; Dec 29, 2006 at 07:13 PM.
Joined: Jul 2003
Posts: 30,677
Likes: 1
From: Dallas, PA
Rep Power: 608 Dude, i have nothing against you. I'm just trying to get your to see it's not worth building your engine for N/A. Our engines don't like it. I would rather see you put hard work into the turbo and get results out man. I think you'd have a better time with it and would like the results alot better. W/e you do, i know you won't half *** it. Just trying to help earlier with the rods deal. W/e you do i back you for it.
I agree. I've said it before and I'll say it again. I have never seen a 200whp streetable, all motor SOHC. To do it, it would cost quite a bit of money and it wouldn't be very driveable. A turbo would be cheaper, faster and require less work, meaning less downtime.
I probaly wont have any downtime becasue i am building a seperate motor
Joined: Jul 2002
Posts: 13,151
Likes: 3
From: Washington DC
Rep Power: 424 You cant tune it until its in the car.... and I guarantee you the first time you tune it won't be perfect. There will be some downtime while you sort the issues out.
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