I got a few quotes to get my engine rebuilt locally. I'm not totally sure what route i'm going to go yet N/A or S/C. I was looking into the JE shelf piston 11.1:1 cr and .25mm overbore. I want a motor that would be stout enough for all motor , but still be ok to boost. I got the quote for $1,330 with all new bearings, gaskets, oil pump, machine shop work, and assembly. All i have to supply is the pistons of my choice, and im going to use stock rods. My goal is around 190-200 wheel hp all motor and around 250-260 with the supercharger. Can anyone make any suggestions on which piston to use?

On a side note i just installed my spc forged aluminum upper control arms yesterday and got an alignment. CaR feels 100% better. Im running the H&R ITR specific springs and bilstein shocks. Ride is great and not too low. ill post some pics soon.

UPDATE AT BOTTOM OF PAGE




Modified by CRXtacy2006 at 12:03 PM 4/24/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRXtacy2006 &raquo;</TD></TR><TR><TD CLASS="quote">I got a few quotes to get my engine rebuilt locally. I'm not totally sure what route i'm going to go yet N/A or S/C. I was looking into the JE shelf piston 11.1:1 cr and .25mm overbore. I want a motor that would be stout enough for all motor , but still be ok to boost. I got the quote for $1,330 with all new bearings, gaskets, oil pump, machine shop work, and assembly. All i have to supply is the pistons of my choice, and im going to use stock rods. My goal is around 190-200 wheel hp all motor and around 250-260 with the supercharger. Can anyone make any suggestions on which piston to use?

On a side note i just installed my spc forged aluminum upper control arms yesterday and got an alignment. CaR feels 100% better. Im running the H&R ITR specific springs and bilstein shocks. Ride is great and not too low. ill post some pics soon.</TD></TR></TABLE>

i say skip the all motor option and go straight for boost. and you don't even need to build your engine if you get a basic turbo setup- i'd highly recommend turbo over supercharger.. and if you're getting pistons, get lower compression and don't use stock rods. don't reinvent the wheel because you're only going to make it harder on yourself.

 

actually, for a street/ daily car that's a buttload of fun - just look at a jrsc

11:1 forged pistons + jrsc + air to water cooler mod my LHT =
And it'll have some LOW LOW iat's!

It'll also have the flattest torque curve. Period.

 

the thing is i do need to rebuild the engine. It smokes like a freight train and eats a quart of oil every 500 miles. Now that i have the money i was just looking to get everyone else's opinion/experience. I dont really want turbo for my daily driver, and wont have the money for a supercharger until later in the summer so i wanted something that is goingto satisfy me until then.

 

11:1 would be fine. If you do decide to supercharge in the future, the LHT intercooler as Black R posted would be in your best interest to purchase to keep intake temps down with 11:1, but on the 8lb pulley, your car would make awesome power.

P.S. choose another brand for your pistons. CP, Wiseco, Endyn...

 

P.S. choose another brand for your pistons. CP, Wiseco, Endyn...[/QUOTE]

whats wrong with JE pistons? I thought they were good quality pistons.

 

You mentioned 'stout' then said you were going to run stock rods. If your going to upgrade everything to make it stout, then do not throw in a weak link into your engine build. Put some nice rods in there while your at it.

 

Im not looking at making anything over 250-260hp max so the rods shouldnt be a problem right? im trying to keep this under 2k

which one of those brands makes a shelf piston for 11.1? JE makes an 11.5 and SRP makes a 10.5.

 

wow thats a real good quote! are rebuilds generally that inexpensive?

i am saving up for almost the same setup next year, was gonna try to do it myself, but i may be able to do it sooner

I know that turbo + track is a headache
would CR 11.1 + S/C 8psi be as much of a "headache" on the track if its built and tuned well ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRXtacy2006 &raquo;</TD></TR><TR><TD CLASS="quote">which one of those brands makes a shelf piston for 11.1? JE makes an 11.5 and SRP makes a 10.5.</TD></TR></TABLE>

CP makes 11:1 pistons.

JE's are a loud piston, and they have weak ringlands (compared to most forged pistons), not that you would need to worry about that without high levels of boost. but they are a bit noisy.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Circa &raquo;</TD></TR><TR><TD CLASS="quote">I know that turbo + track is a headache
would CR 11.1 + S/C 8psi be as much of a "headache" on the track if its built and tuned well ?</TD></TR></TABLE>

If you use the LHT intercooler you will have no problems at all. Otherwise, I might opt for the 6psi pulley if track reliability is of concern.

 

thanks for all the info. I cant seem to find 11.1 from CP all they have is 11.5. and also they are .50mm overbore (.20 in) is that going to be too big? The builder suggested .25mm overbore?

 

Bore it to 84mm or 85mm.

 

by the way, what is the highest compression you can run with a supercharger?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Fayzeless &raquo;</TD></TR><TR><TD CLASS="quote">by the way, what is the highest compression you can run with a supercharger?</TD></TR></TABLE>
Believe it or not, that is a myth about the higher CR pistons. It's all about the CFM when boosting a car. You gotta make sure the tuning is right more than anything. But there are deminishing returns.

 

whats the myth?

 

can you run 12.5:1 compression with a supercharger?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Fayzeless &raquo;</TD></TR><TR><TD CLASS="quote">whats the myth?</TD></TR></TABLE>

You can run high compression even with boost. You have to moderate it. Say for example you run 12:1 CR with a high boost of 10 LBS with output of 300 WHP.
You can do the same with 10:1 CR with boost of 15 LBS. These are not exact numbers, just an example. You can run boost with higher CR engines, you just have to back down the boost to acheive the same goals. The myth part is YES you can run boost with higher CR engines, and NO higher PSI is necessarily better.

Edit: 12.5 with a supercharger, I'd say yes it can be done. You would have to run low boost and probably the LHT manifold, but I'm sure it can be done.

 

would jun 3's work with that setup as well?and aslo pump gas?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Fayzeless &raquo;</TD></TR><TR><TD CLASS="quote">would jun 3's work with that setup as well?</TD></TR></TABLE>

Dunno, never build a SC, 12.5:1 setup with those cams. I'm sure you'd have to go to your engine building with all of the specs and see what they think. Not sure of the lift and duration of those off the top of my head.

 

UPDATE:




noticed a very bad miss a couple of days ago did the usual plugs wires cap rotor ect. and nothing helped. the plugs were pitch black in 1 day except for #3 which looked just terrible. cant really describe what i was looking at because im not that great with plugs. my oil that i just changed yesterday was pitch black. So my car has been running wayyyyyy toooo rich on the kenji p28. excessive carbon buildup on all of the exhaust ports. #3 being the worst. there was oil on top of the piston when i took the head off of it. and you can see the crap caked on the valves. i think it has a cracked ring land won't know until tomorrow when i get the block out and to the machine shop. the head is going to have to be freshened up a bit now, and im going to need hondata to tune my new setup because this crappy computer just isnt cutting it. Pretty much my budget build of $1800 just turned into roughly 3k after a tune. Say bye to he supercharger for now hopefully by the end of summer ill have enough saved to get it. Ill keep you guys updated.

 

gl on the rebuild d00d, can't wait for mine

just a question: are you going to leave the block in there? or eventually take it out

 

we only had 2 hours of light after i started. taking the suspension, tranny, and block out today. to go to the machine shop.

 

anyone have a good deal on hondata s200? Hondata intake manifold gasket?

BlueR came through with the parts again. can't thank you guys enough.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRXtacy2006 &raquo;</TD></TR><TR><TD CLASS="quote">anyone have a good deal on hondata s200? Hondata intake manifold gasket?

BlueR came through with the parts again. can't thank you guys enough.</TD></TR></TABLE>

BlueR is the man when it comes to getting parts. He got me my Hondata IM gasket a while back, so I'm sure he can get you yours.

 

damn....much luck in your new build...honestly, I'd stick with NA setup...with supercharger you get quite a bit of torque but you also get a lot of heat...and i mean A LOT OF HEAT. don't know what the weather is like in VA but here in socal, it can get pretty hot. stick with NA...you'll be much happier...and build it for like 91-93 octane

my NA setup makes decent power for the street...couldn't be happier