digital sol

iTrader: (1)

Alright, im going to be building my bottom end for boost soon but have a few questions. My goal is to make around 300whp but it will be driven alot, probably close to being a daily driver. Will the stock 98 itr head be ok to handle 300whp? I know the stock bottom can but that would not be reliable. With that said, which pistons/rods combo would be the best? I was hoping that if the stock head will work ok, then i would just build the bottom up using lower compression pistons so i could make my 300whp and be safe about it. What other mod's to the bottom should be done? Any-1 know how much the stock jdm itr used pistons/rods sell for?

thank-you for your time

PM-Performance

the stock head can handle 500whp no prob, i was shooting for 600 on mine. i wouldnt worry about the head. the block can do 300whp easy if its tuned right, the only thing to look for is the ring lands. everything else is stout believe it or not. throw in a low comp headgasket and tune conservative and you can run 300whp forever

Jon D

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">the stock head can handle 500whp no prob, i was shooting for 600 on mine. i wouldnt worry about the head. the block can do 300whp easy if its tuned right, the only thing to look for is the ring lands. everything else is stout believe it or not. throw in a low comp headgasket and tune conservative and you can run 300whp forever</TD></TR></TABLE>

.....

....Pete = Turbo God

digital sol

iTrader: (1)

thats what i wanted to hear

is there anything i can do to keep the ringlands from wearing? a local had a jdm itr, tuned for 300whp but he blew out the rings in a week....

i was planning on having it tuned by tom payne in detroit "road trip", was also planning on driving it pretty much everyday through the summer and then getting a new beater for the winter of next year.......most shops told me if i wanted it to last on 300whp id have to build the bottom....

DC2R714

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by digital sol &raquo;</TD></TR><TR><TD CLASS="quote">thats what i wanted to hear

is there anything i can do to keep the ringlands from wearing? a local had a jdm itr, tuned for 300whp but he blew out the rings in a week....

i was planning on having it tuned by tom payne in detroit "road trip", was also planning on driving it pretty much everyday through the summer and then getting a new beater for the winter of next year.......most shops told me if i wanted it to last on 300whp id have to build the bottom....</TD></TR></TABLE>

Make sure to have conservative timing. This keep cylinder pressure at bay and in turn will reduce ring wear.

PM-Performance

the rings themselves arent what is prone to go. its the ring lands. the things where the rings seat into the piston.

Like i said if its tuned conservatively and cyl pressures are kept down, you can have alot of fun on a stock motor. **** i think i had more fun on my stock motor then my built ones.


ANd JON, i am far from turbo god, but thanks for the compliment, made me feel a little tingly. lol

Jon D

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">


ANd JON, i am far from turbo god, but thanks for the compliment, made me feel a little tingly. lol </TD></TR></TABLE>

i hear that bigg *** TV has the same capabilities with the right dvd in

PM-Performance

you have NOOOOOOO idea

DC2R714

Actually the rings and ringlands are the first to go. Lets no forget what mine looked like when we pulled them.

PM-Performance

your rings only prob went becuase you melted the piston. they kinda go hand in hand, but most of the time the lands will go 1st. they are just weak castings

DC2R714

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">your rings only prob went becuase you melted the piston. they kinda go hand in hand, but most of the time the lands will go 1st. they are just weak castings </TD></TR></TABLE>

True. At the point where your ringlands go most other stuff starts going as well.

PM-Performance

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2R714 &raquo;</TD></TR><TR><TD CLASS="quote">

True. At the point where your ringlands go most other stuff starts going as well.</TD></TR></TABLE>

catastrophic. I remember that day on the dyno too. Sucked *****.

Mr. Roboto

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2R714 &raquo;</TD></TR><TR><TD CLASS="quote">Actually the rings and ringlands are the first to go. Lets no forget what mine looked like when we pulled them. </TD></TR></TABLE>

i got to gigure out how to get my pics up here so I can show you mine as well, it looks similar to that too.

DC2R714

Ya that was a sad day, but hey atleast my head and crank were fine. I was happy about that.

digital sol

iTrader: (1)

so even a built bottom end wont keep the rings/ringlands from wearing out?

ive got hondata and was gonna have tom payne tune the car but i dont want my pistons looking like that anytime soon

edit: just read this *tuned conservatively and cyl pressures are kept down,*

thanks for the info

PM-Performance

on forged internals its harder to do that. . . . I have done atleast that bad to all my pistons on Forged internals. already. lol.

Rings depends on tuning. rings can go bad on a rich start up and flodding them out.

BoostR41

snag up a inline pro head gasket. I ran one for 2 years at right around 300whp with no problems at all. when we pulled my motor apart at 92k miles the rings, pistons and rods were all a-ok.

AznInvasion

how much is an average rebuild with oem parts?

boostjunkie757

cometic headgasket....350 whp almost. 11psi.

its possible. boosting for 8 months. driven everyday all day.

vtec.dc2

forged internals can take more abuse than stock. 1. its stronger, 2 its newer. the way i see it, more hp = shorter life. whether forged or stock, seals wear out an with more hp they wear out faster.

PM-Performance

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AznInvasion &raquo;</TD></TR><TR><TD CLASS="quote">how much is an average rebuild with oem parts?</TD></TR></TABLE>


rebuilding isnt worth it with OEM parts. same ***** gonna happen.

AznInvasion

oh ya good point
i think i read somewhere a rebuild might occur around 50-60k
i dunno why i sold my last setup but i regret it now. my car is slow as hell and i wanna boost again. i drive about 30k a year and i needed a reliable car while going to school. i figure i can boost again for around $3000 tuned with neptune but my motor dropped like 30psi when i did my last compression test.
240 210 210 210. i am scared my rings will go when i reboost again and be **** out of luck with no money to rebuild.
i posted a question about this is the F/I section but i didnt really get no answer.
i plan to boost 10psi stock motor!!! and prolly 5psi daily.
so i ask how much for a rebuild with oem parts cuz if it does happen to me i would prolly sell the turbo kit to rebuild the motor and return back to stock.

i was on hondata s200 at 10psi daily for 15k tuned by jeff
and any thoughts about neptune compared to hondata?

vtec.dc2

don't know enough on pricing, but if its near 2k, might as well buy brand new block if they still make them.