titi_vtec

hi everyone i was out of this game for a bit and now i came back just to build a single cam turbo for my little brother. We have already a Y8 head and some nice D16Y5 (vti) block that we want to build. here is the stuff im planing to get fot block:
-Eagle H rods.
-Vitara 8.5:1 with stock bore at 75mm(i dont want to put the sleve weak by boring then)
-balance crankshaft(stock)
-ARP head bolts
-ARP rod bolts
this is for head:
-stock everything!
now i'm planing more than 18psi of boost, what type of valves not to expensive would you recomend me, as same of retainers and camshaft! also one more question i will get a cometic head gasket with stock bore at 75mm but it has a thick 0.XX number what its means? THIS IS A TRACK PROJECT NOT FOR STREET! thanks

OGlurker

iTrader: (1)

0.XX refers to the thickness of the head-gasket. Upon ordering, it depends on what compression ratio you're aiming for. Usually Cometic gives you a 0.30 but you can order them thinner or thicker. Thinner for higher compression and thicker for lower compression.

OneBadTurboCRV

0.3"??? I haven't heard of a 3/tenths gasket before... unless you can't read decimals and meant 0.030"?

titi_vtec

thanks fot that info it help a lot i will go low compression so y have to get something high then! and what about head? can i leave it like that stock? rev at 6800rpm or you recomend me something? i see the brian crower stage 2 cam but it goes for 350$ in my area the cheapers one! can i use anothe brand like comp zex or bloxs? i just want to pull +300whp! also can i use a light weight flywheel?

boosted_D

iTrader: (1)

You dont want to lower the compression any lower, 8.5:1 is plenty low, stock thickness head gasket is what you want, and cometic is not needed, a stock one will do great.

Also springs/retainers and aftermarket cam are not needed for 300 whp.

Build the bottom, keep top stock, use a 50 or 57 trim t3/t4E turbo and tune to 300 whp, piece of cake man.

titi_vtec

thanks for let me know that! so what i'm planin for my bottom end is right!? and i will keep my head stock how manny psi will it hold? and how manny i will need to +300whp with a nice tune! what about the flywheel?

boosted_D

iTrader: (1)

Yeah the vitara/custom rod is good to go at 8.5:1 compression.

Use any flywheel you want, it makes no difference.

Make sure you have a good clutch that can handle the power.

As far as "holding" psi or how many psi it takes for 300 whp.

The stock head and the built bottom end will hold as much "psi" as you can throw at it, it's not about psi, its about horse power, and that motor will hold 400+ whp so 300 whp is a breeze.

How many psi to make your 300 whp goal? Nobody knows the answer to that, it depends on what turbo you use, what fuel you use, what turbo manifold you use, and how good your tune is.

It could take anywhere from 14 to 25 psi to reach your goal. You wont know untill you get it on a dyno and start tuning it.

OGlurker

iTrader: (1)

Yes, sorry, forgot the extra zero.

titi_vtec

mmm... i see now here is always a pleasure talk with people like you guy that always know! i'm really thanksful, and i will keep you update on my thing, but its a far project because i'm only one working and my little bro has only 17 but he want a track car already and here we are! every step, question, picture and part i will post it here.

titi_vtec

Hi again and one question! What the stock valve dimensions for a P2J head thanks! I will post some pick maybe today of what i got so far! Thanks

titi_vtec

I need an advice here my block is a D16Y5, so my head is a P2J-5, will the cause me any problem at build time? The head is VTEC-E