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whats the highest psi someone has run on stock bottom end and been safe? and what is the best idea to run safely?
now for those without a stock bottom end. where did you get your pistons, rods, whatever else youve done. i search and search and find nothing for our motors but i know lots of people have them. i know they can be custom made but theres no way thats the only method i hope. im not paying that much and waiting up to 20 months.
thanks.


also just for fun post up what psi your running and your whp (plus if bottom end is stock or not)

 
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http://www.7thgencivic.com/forums/sh...d.php?t=168101

 
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thanks havok. but those pistons are oversized. i dont feel like sleeving the engine. maybe i should though. ill look into it but for now anyone know of any stock size pistons.

 
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Hey, not exactly the same topic but i was reading this and thought it would be a good place to ask. when people say build up your internals with a turbo, what parts exactly are they talking about that need to be replaced. i just purchased a turbo kit and i have basically a stock motor, ill probably just run 6-8 PSI for now to keep it safe, but what would i need to do to be able to run more safely, IE, what internals do i need to "build up" and how much $$$ am i looking at here to do so.

 
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some cars people would build it up swapping out the crankshaft also but in ours your fine just swapping out your pistons, connecting rods, and the piston rings. some people go as far as sleeving the block for bigger pistons but dont bother. also building up internals can mean the valvetrain but normally people dont mean that if they say they built it up for a turbo setup.

 
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hmm, sounds expensive. how much would i be looking at approximately here for pistons, rods and rings?

 
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bottom end is much more expensive than the head. My Subaru will be built for stage 2 though.

10psi on a DX/LX is the most I would boost, and 8 on a EX. Thats pushing it, but can be done with a very good tune. EX has higher compression, so I wouldnt boost as high on that head.

 
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hmmmm well my engine will be lx bottom end and ex head. but ill probly just run it at 7psi till i get the rest of my crap.

 
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I was running 8psi on a lx.
max I ran is 12psi for like 2hours (it was quick and fun). <---- don't try unless you want to do a swap/rebuild the bottom end.

 
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well im gonna rebuild bottom end but dont want to risk other damage or wear.

 
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running 12 psi on my ex and have been as high as 16 but 15 psi is the real limit on our stock internals considering if your engine is in good condition. I would say 12-13 is about as far as anyone shoudl go unless they do build the internals.

 
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so im hearing 6-13psi? lol
how long have you been running 12 on the motor? any mods at all? head studs nippon gaskets anything?

 
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I would not recommend anything over 8-9 PSI unless you have a good tune of the EMS, EGT's and fuel delivery is dialed in correctly. Why risk the $$ for extra short term power? If you want to build for power, do it. We sell rods and pistons for the D17. We can hook you up, however fuel delivery for anything crazy like 1 BAR of boost is the only problem with the EM2 D17.

 
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Stock sized pistos are also availble low compresion and high compresion.
The part number is there too, along with the contact info.
Read all the engine rebuild thread you'll find your answers there.

I would also recomend figuring what is your goal is with your car in advance.
Full racing
Daily driver with occational street racing.

eg:
Can't boost 14 psi daily on stock even with just pistons.
Can boost 6 psi on stock
Even to replace pistons you most replace rods.

Can boost 20 and up with full internals
But have to repalce the ECU and Axels trany etc.

Find your goal then buy the parts.

Most of all SEARCH
Save yoyrself lotls of headache and $$$$

 
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AMEN brother!

 
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thanks.

my goal was 18psi but you mentioned something that completely slipped my mind, the tranny. i dont even want to get into the money for a different one or something.

i think my goal is probably 14-15 pounds maybe 16 i dunno.
what would our tranny hold up to?
also ive got my gameplan, i listed everything i want in notepad with prices and where to get it, then i llisted my options for short and long term and which ways i can go with the car.
i also realized i have expensive taste and need three more full time jobs and a money tree. lol

lets say im at 15 psi, id want to do the internals anything past ten. then i want the stage 2 crower cam and springs. also im going to get the boost contoller no matter what psi. ill get arp studs and nippon gasket and im not sure what size exhaust piping is good for this setup.



p.s. the last thing i want to have to do is custom-order anything or replace tranny or ecu so tell me if im gonna have to do these with the above setup.

EDIT: this will be daily driven. everyday in highway and bumper to bumper city situations. but id like to have the power there for the track (i barely go now though) or just open roads. (and the dyno)

 
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can you pm me a price quote on 9.0:1 pistons and rods?

oh and what is "1bar of boost"???

also, do you think id be fine running to like 15psi without an ems? or what problems could happen? egt= exhaust gas temp.? how do you tune that?

 
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1 Bar= 14.7 PSI

The EMS with that type of boost is going to be tricky. AEM EMS may have to be gotten to take care of this.

EGT=exhaust gas temp. EGT's are controlled through A/F and ignition timing. This is done with a boost gauge, EGT & a wideband O2 on a dyno.

 
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so i should be cool running 8 PSI with a decent tune on stock internals? and hey dezod, how much $$ would i be looking at for new pistons/rods/rings from you?

 
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PM me.

 
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10-11 psi daily for me. no problems yet....knock on wood.

 
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You need to do some reading and learning before you run anything above 10 pounds unless you have a GOOD person tuning your EMS (or whatever you're using).....

 
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ive ran 10-11 psi for the past 5 months and havent had one problem....

 
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well my kit comes with e-manage and 2 extra injectors to put on. so 6 injectors i figured would take care of fuel delivery up to a certain psi.

i think ill run 10psi the most. im going to just leave it at 8 then if i find someone to tune it ill have them tune it for 10 psi.

the thing that sux abuot reading and learning is that as much as i try to read and learn most of the info i find is vehicle specific and so obviously i cant find civic stuff. so ive just been looking up tons of parts and everything trying to get the best understanding for it. forced induction i know crap about compared to the rest of a car.

 
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Notice I said "you need to do some reading and learning BEFORE"....

You researched your setup for a few years before you were running 10-11psi buddy....

 
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my whole thing is, im tight on cash so i dont want to pay to tune the car now then pay again when i get stage 2 cam and pay again when i get internals and stuff and turn boost to 15psi.

 
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what do you guys normally pay for dyno/tune (hourly rate for tuning if im correct.)

 
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true that, my bad

 
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mine was $125 for about 8 pulls with tunning, but thats with me doing all the basic tunning as far as off idle cruise and all the transitions(sp) All they tunned for was WOT. They could have done a full tune but im sure that would have added A LOT to the cost. I spent countless hours tunning mine for daily driveability and still has a little room for improvement

 
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Tuning is endless and there is always room for improvement young Jedi.