First off depends if you want to go N/A or FI - but his 10.1:1 compression pistons will give good drivability and strength for 8-9 psi on 93-octane gas - not to mention more power on a FI 3.5

 

I'm not planning on using his pistons, too much compression, but they are a good price.

just the crank rods and pistons, but if your into doing it cheaply, you might be able to re-use your old pistons if your going to use your 3.2 block. i do have those stock forged rods for sale, never used.

 

This is looking interesting

 

I already have a S/C and I/C will be here next week. I'm thinking the added torque from the extra displacement is a definite plus. Also, with the slightly lowered compression (10.2:1 vs 10.5:1) I shouldn't have much trouble running 10psi instead of 8.5-9psi.

I wonder how much my dealer would charge me. They've always talked about "stroking" this motor.

 

If you are going to pull factory pistons out, replace them with forged ones!!

 

I'd replace the pistons with the ones from Dean. The 10.2:1 set.

 

^^^ dont u have to get the max boost pulley to run that much boost steve??

 

Yes, but with a lowered CR and forged internals it wouldn't be a problem.

Just something for me to think about. The "built tranny" fund has already started.

 

what pistons are those from??? i thought the type-s was like 11:1 already i could be wrong though i havent read up on it in long time

 

Type-S = 10.5:1

 

Well, I'd say for just the 3 main componets to make it a stroker, Crank-789.00, Pistons-800.00-1000.00 for a set, stock forged rod from acura - 85.00 each.

 

Honestly if you are opening up the bottom-end, get aftermarket rods!

 

but does any after market company make forged internals for our car? i didnt think anyone did

 

Everything will be custom...

 

got any recomendations for a company to use. u think crane cams is worth a shot?

 

Cams are tougher because it is usually an iterative process to figure out what works best for what...

 

yea but dosent crane also make pistons sleves and all that good stuff also?

 

so what? If you're going custom, just go custom... no reason to go with a company because they make a variety of parts for some other car. I'm sure allmotor has the right idea with who he's using and for what he's using them for.

 

i wasnt trying to say he has to use them i was just asking if they made other custom engine parts other than cams

 

yes

 

are there any J series engines that are DOHC? if you're going to build up the engine, why not make it DOHC while you're at it? (NA)

 

Well, if the 6spd tranny mates to the NSX block... then that is an idea!

 

Does the 3.5L bottom end bolt up to the NSX heads?

 

no

 

That would be too easy wouldn't it?

 

and expensive, 04 head for the nsx is around 3700.00, that's for one head only

 

Not according to www.acuraautomotiveparts.org

Each head is < $2000

 

that's without the valves and springs.

http://www.acuraautomotiveparts.org/...prddisplay.jsp

look under... ENGINE ASSY.- TRANSMISSION ASSY.

 

Ahhhh I see now

 

Raising the dead but am curious what information was determined about new pistons??

 

Oh... nothing that dramatic. It's a 6-8 week lead-time for custom JE's, Arias or pretty much any brand.

 

No big deal, just curious.

My father-in-law now wants in on the NSX build which is fine with me; lowers my total costs. We may just leave the engine alone and run the twin turbo system and see at what point it goes south. Might be interesting to find out how much the stock J32A2 can take.

 

What about Type-S motor with CL-P pistons?

 

Would be cheaper way to lower compression, but I doubt they are as strong as a set of JE forged pistons.

 

I have seen some comment thru out the forum leading me to think you are in the midst of some kind of project. I was going to search to see what it was but have no idea so don't know what to search for. So if you or someone else could fill me in. I am also interested in getting forged internals prolly 9.5:1 compression for CL-S motor.

Can we use off the shelve pistons, rods, etc. I remember hearing that some parts are interchangeable/compatiable with K series Engines. I also went to King Motorsports and they said that NSX internals are also compatiable. This way save some money since not custom.

 

Eh? I don't think the internals are compatible!?!

 

I am not sure but that is what King Motorsports told me, maybe they would slightly modify them in-house or something but that just what I was told.

 

It would be trial and error to see if any parts are interchangeable.