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Comp
[QUOTE=INTEG;1387941]
 Originally Posted by Sexc86
dont go a super low compression on your piston. 10:1 Cp forgies would be good!
VTIR B18c is already 10:1 ratio welz that what it says in the SnapOn book is rite some corrt mi?
Bro,
Run 9:1 rotio since ur planning to do some head work. This means u will still gain alot of power from ur head.
With the selections of ur valve springs, cam gear and camshaft, me personally would of just went and purchase the crower kit. Just make sure that the boost ur running ur springs will hold? Jap parts are great for NA but when u start playing with boost i suggest u buy Yank parts, as they have been boosting hondas for years with der own products.
U changing ur valves aswell?
U will always gain power when u port and polish ur head and intake monifold. Just make sure the guy doing it knows wats his doing, specially when his polishing it. If not polished right then the airflow will be unbalance
Good luck
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[QUOTE=BALIW;1393764]
Originally Posted by INTEG
Bro,
Run 9:1 rotio since ur planning to do some head work. This means u will still gain alot of power from ur head.
With the selections of ur valve springs, cam gear and camshaft, me personally would of just went and purchase the crower kit. Just make sure that the boost ur running ur springs will hold? Jap parts are great for NA but when u start playing with boost i suggest u buy Yank parts, as they have been boosting hondas for years with der own products.
U changing ur valves aswell?
U will always gain power when u port and polish ur head and intake monifold. Just make sure the guy doing it knows wats his doing, specially when his polishing it. If not polished right then the airflow will be unbalance
Good luck
Yerh i was thinking about it today cause i got my engine apart and ready to get sent out i havnt ordered the pistons yet cause im still thinking of what com ratio to go, yerh i mite do what you say go 9.0:1. About the cams i was going to go skunk2 turbo cams but i had to wait for ahwile to get them from the US and Yonas gave me a good deal on the BC kit. I think in the end it all depends on the tuner.
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I was thinking while im installing kaaza 1.5way lsd diff i mite aswelz change all the syncros and needle bearings and input shaft bearing, so i called up honda and got i quote on these parts and all cooling hoses beside top and bottom radiator hose and holy shit it came up $26xx.00 i was like WTF!!!. some of the guys said you can get the syncros matched up at some place around $10-15 each is it betta go OEM then aftermarket. ill post up the quote of all the parts. Any of use mite know what is necessary or what is not when rebulding a gearbox. There nothing wrong with my gearbox just done 180,000k just to be safe side, while i got it out i mite aswelz do it!!!
Let me what your opinon?
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man dont do 9:1 you are just robbing yourself of power.... just means you gonna have to run more boost or more agressive timeing to make it up.
just get 10:1 Cp/weisco forgies, much more responsive with useable power off boost. Best talk to a pro about it then us E-mechanics. www.hondatech.com.au / www.jtune.com.au / qcb771@hotmail.com
Name is James, probably one of the best honda engine builders in australia, and loves high comp dohc vtec turbo engines.
Last edited by Sexc86; 28-10-2007 at 06:04 PM.
Light up with Lyle - Electrical / Communications / Instrumentation
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How much PSI you plan on running?
And im not pro in this area or anything, but i agree, and would go for 10:1
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go higher comp.........with less boost will make more power and more resonsive than lower comp and more boost.
speak with james aka blkcrx he has his crx b16 with 12.5 comp and 26psi never missed a beat in 2 years.....................anbd he drove it every day, he is also the tuner................
i am leaving my b18c7 type r motor stock at 11.1 comp with about 8-9psi.........should make some decent power...........
and next year when i decide to rebuild bottom end, i will got to 12.5 comp and hopefully around 12-14psi...............
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So use guys recon i should stay high comp 10:1, everyone at work is saying go low comp just to be safe! Now use have convince me to go 10:1 i call up the engine recon place 2moro and see if his ordered anything if not i stay with 10:1 or go higher??? let me know will the block handle it eg the bores?
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first thing is first, who is going to be the tuner?????
speak to the tuner and ask him what he thinks....personally like i have said above, the higher comp the less boost required to make the power......
as long as the tune is correct, you wont have anything to worry bout........
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welz i was going to get james and try to get enough ppl over in perth to get terh car tune but it dosnt look like it plus his a busy man. so the new place in perth that specialised in hondata is "South West Customs" but i done know how there tuners are!? Hopefully james reading this post and let me know how good terh tuners are cause he came down here last month i think
so basically when my motor comes back start putting it back together and tow it to my friends exhaust shop to get the exhaust done and intercooler piping done and should be all set to get tuned. then tow down to South West Customs it abit far from were i live but that only place i know of that does Hondata ECU.
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Originally Posted by INTEG
... everyone at work is saying go low comp just to be safe! ...
no offence but how many of these guys at work have built a boosted HONDA engine?
and with all the work you're getting done, what do you need to be safe for?!
will this be your daily? i consider myself a relative n00b but i believe  's love rpm and compression and with no compression, daily/off-boost driving = 
btw, you doing rods too? or just pistons?
FOR SALE: Injector seal kits || Dayco B16A timing belt
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i undertsnad where your coming from, i am fortunate that james is in melb and i only have to tow it to him.lol
y dont you offer to pay hgis ticket maybe just 1 way then it may be worth your and his while to come and tune it.
btw he isnt on this site.hge got banned i think ages ago....
go to www.hondatech.com.au and ask him there.
his name on there is BLKCRX. so pm him
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