Im planning on grabbing a set of Skunk2 Pro2 cams..
Im currnetly running a B18c5 with JDM PCT(Civic TypeR) and was told that the valve reliefs might not be big enough??
Has anyone ever run this setup.. or have any experience on it?
I wanna know if i can run the car without doing any work to the block??
Thanx

 

plan on doing the same with my build wondering the same

 

Only way to tell is to clay the motor.

12.8mm lift is a lot for PCT's.

I still don't understand why people run PCT's in 1.8L's...

 

why wouldnt you run them?

 

Flame travel is not so hot on the PCT's. The dome is dead center and it causes an uneven burn on the intake side only.

Some people have been known to cut through the center of them and "channel" them to allow the fuel and air to equalize on both sides to create a good burn but I really don't know why you would run a piston that had to be modded to that extent to build good power in the first place.

That's just me though, I don't know everything. In fact I know very little but I try to learn more every day

 

PCT is a terrible piston to run in a b18 block. period. I could probably see running them in a b16 but not a b18. If you need compression that high, get aftermarkets.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jay_Sensing &raquo;</TD></TR><TR><TD CLASS="quote">Flame travel is not so hot on the PCT's. The dome is dead center and it causes an uneven burn on the intake side only.
</TD></TR></TABLE>

X2 agreed

Also, this engine had better not be a DD unless you rich enough afford 100 octane for everyday. Your compression is going to be about 13.5:1. Pump gas and that high compression is a recipt for low mileage engine failure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eg_TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Im planning on grabbing a set of Skunk2 Pro2 cams..
Im currnetly running a B18c5 with JDM PCT(Civic TypeR) and was told that the valve reliefs might not be big enough??
Has anyone ever run this setup.. or have any experience on it?
I wanna know if i can run the car without doing any work to the block??
Thanx </TD></TR></TABLE>
Well I say do it..reason ah friend of mine was havin da same dilema..but he had pro 3s..so he called skunk 2..spoke 2 tony which is from the site and tony transfered him 2 the engine builder 4 more info..he spoke 2 the engine builder and he told him he would be safe not to worry just that pro3s need alotta air so bigger throttle body and maybe ah ported head would help ALOT in peak performance....all n all his car been runnin beautiful 4 the past month or so no traction 1nce vtec opens all the way 2 third gear but he got tuned right away and now I believe atcoraceway opened 2day he at the track so hopefully he break his mark that he set 4 hisself. All n all pro 3s werked why won't pro 2s if u have doubts call skunk2 yaself 9518089888..ask 4 tony and let him kno u from hondatech thats just bout the only way u get 2 speak 2 any1 lol


Modified by 15sec at 6:13 PM 1/24/2007

 

i personally would never run pct's or s2p2's in a 1.8L. its completely idiotic. the end results will be less than stellar. the funny thing about this p2 in a 1.8L is the first test i saw with p1 vs. p2, it was on a high compression 85mm motor. s2p2 are too big for that motor, str8 up. you will yield much better numbers with a smaller cam.

 

Pro2's will probably want more room for gear adjustment than those pistons will alow.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 15sec &raquo;</TD></TR><TR><TD CLASS="quote">
Well I say do it..reason ah friend of mine was havin da same problem but he had pro 3s..so he called skunk 2 tony and spoke 2 the engine builder and they told me he would be safe not worries just that pro3s need alotta air so portin and throttlebody upgrade would be required.....all n all his car been runnin beautiful 4 the past month so so no traction 1nce vtec opens all the way 2 third but he got tuned right away and now I believe atco opened 2day he at the track so hopefully he break his mark he set 4 hisself. All n all pro 3s werked why won't pro 2s if u have doubts call sk2 yaself 9518089888..ask 4 skunk2 tony and letthem kno u from hondatech</TD></TR></TABLE>

what?

 

marshall,
didnt we cover this yesterday? jesus, this question has been posted at least 2Xs in the same week. search MFers SEARCH!!!!!!!!!

 

Can someone reccomend a different piston (oem or after-market)
that will be able to run Skunk2 Pro2 cams??
Thanx

 

i would be willing to bet that you could run those with CTR pistons but you wont have much room for adjustment or error.

 

yeah the only way to know for sure is to check it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eg_TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Can someone reccomend a different piston (oem or after-market)
that will be able to run Skunk2 Pro2 cams??
Thanx
</TD></TR></TABLE>
B18c1 ctr pistons .50 overbore
b16head
Skunk2 Pro Valvetran
Supertech flat Valves
Aebs man 65mm with 65mm THROTTLEBODT
SMSP header
SKUNK 2 PRO 3 CAMSHAFTS
Pro series camgears

HERES MY FRIENDS SETUP AND HE BEEN RUNNIN IT OVA AH MONTN NOW NO PROBLEMS HE JUST DYNOTUNED NEXTDAY AFTER PUT TOGETHER AND BEEN POPPIN VTEC EVERYSINCE

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eg_TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Can someone reccomend a different piston (oem or after-market)
that will be able to run Skunk2 Pro2 cams??
Thanx
</TD></TR></TABLE>

Every aftermarket piston should be able to accept a 12.8mm cam with a good adjustment window.

Just to put this out there, these cams (Pro2's, Pro3's, BC5's...etc) should be degreed in. We are talking about a lot of lift, and a lot of duration even at low lift. I know DonF has drilled this into a few of us over the past year or so, these aren't meant to be drop-in cams.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1 2 NV &raquo;</TD></TR><TR><TD CLASS="quote">marshall,
didnt we cover this yesterday? jesus, this question has been posted at least 2Xs in the same week. search MFers SEARCH!!!!!!!!!</TD></TR></TABLE>

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If I had a nickel....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eg_TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Can someone reccomend a different piston (oem or after-market)
that will be able to run Skunk2 Pro2 cams??
Thanx
</TD></TR></TABLE>

what's with the obsession with P2's in a set ups that are inadequate? that cam is too big, buddy. you need both a better piston and cam choice.

 

We're running these pistons with the same setup. Our head is milled .040 too and we're fine as far as clearences go. We even have the cams tuned at 3 and 2 and no clearence issues. Yes the compression is high, but if you want the power than you gotta do what you gotta do. We ran almost a whole season on that motor too. Check out our full specs in my Garage post.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RedEj8 &raquo;</TD></TR><TR><TD CLASS="quote">PCT is a terrible piston to run in a b18 block. period. I could probably see running them in a b16 but not a b18. If you need compression that high, get aftermarkets.</TD></TR></TABLE>

Why get aftermarkets when the PCT's are so cheap?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pwrspdgude1.8 &raquo;</TD></TR><TR><TD CLASS="quote">

Why get aftermarkets when the PCT's are so cheap?</TD></TR></TABLE>

A) you can make more power with less dome height
B) Cast pistons inherently are prone to imperfections (ie: breaks in the crystaline structure...) that expand/contract with heating, causing areas for hotspots to occur and can lead to predetonation.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">

A) you can make more power with less dome height
B) Cast pistons inherently are prone to imperfections (ie: breaks in the crystaline structure...) that expand/contract with heating, causing areas for hotspots to occur and can lead to predetonation. </TD></TR></TABLE>

That also depends upon the tuning. Run PCTs in a Type R for over 4 years, with no issues whatsoever. Not as much noise in initial cold start, expands at a good rate, and were easy to work with. Unfortunately I can't find the dyno sheet after the injector upgrade (the stocks were always at about 78% or above at WOT), and retune with Power FC, but otherwise it was quite flawless on a C5.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">That also depends upon the tuning. Run PCTs in a Type R for over 4 years, with no issues whatsoever. Not as much noise in initial cold start, expands at a good rate, and were easy to work with. Unfortunately I can't find the dyno sheet after the injector upgrade (the stocks were always at about 78% or above at WOT), and retune with Power FC, but otherwise it was quite flawless on a C5.</TD></TR></TABLE>

The stability of the setup definately lies with how well the tune is. This is true for all setups, ragardless of metallurgy of the components. However, cast pistons offer a smaller window of error when compared to forged units. The argument wasn't that it is impossible, but rather it is not ideal. The probability of component failure is much greater if you are not using ideal units.

 

the cast honda pistons will last longer on a daily driver(100,000 miles+)

 

Well I dont wanna run almost a season, i want it to last a little longer that that...lol
I want some reliability also... i wanna be able to drive it whenever i want few times a week or so.. and also be able to drive it to the track, and run it, and drive it back..
should i take them out of the block?... wut company should i look at, can someone with pro2 let me know wut rods, pistons cranks there running?? thanks