Kwame

iTrader: (78)

My engine builder is waist deep in my build and it should be done pretty soon. He has not made any mentioning of having to notch the piston or rods. In fact he commented on how much of a well made piece he thought the entire BC Stroker Kit was.

I don't think we will need it for my NA build, my engine builder informed me that if we were going to throw tons of boost at my setup than he would advise me to use the IP piece.

What T.V. commercial is that again were they keep repeating the phrase "We're working on it?' Well thats us.

Dynosty

iTrader: (27)

We have built a number of strokers now, and you do not have to touch the rods or pistons. The BC stroker is a very nice package, and we have it down to very minimal block clearancing now. Our billet girdle takes care of the girdle clearance problem, but more importantly adds strength to the assembly, both for power and high rpms.

__jb

iTrader: (3)

Does the BC kit still require the oil squirters to be removed?

Kwame

iTrader: (78)

Yes, but any good engine builder knows how to compensate for that.

__jb

iTrader: (3)

Thanks. Not having oil squirters would not be a deal-breaker for me, although my car will be a daily driver like yours. Did IP fit up and assemble your shortblock?

I'm trying to find the technical specifications for the two stroker kits. Do you have it? I'm mainly looking for the bore, stroke, and rod length for both the BC and GTM kits.

I thought I used to have a link to the GSM 4.2L stroker kit but I can't seem to find it now. Maybe I need to look through their 3.8L stroker kit post again. I can't believe GTM doesn't have a web site yet.

Thanks for all your info... I keep waiting to see that link in your signature go active!

GTM

iTrader: (12)

Here is the thread with information on our stroker kits (https://my350z.com/forum/showthread.php?t=224931). Our website will be launched on March 1st, we are just wrapping things up on the site it is almost complete.

Thanks!

-George
GT Motorsports

InjectedPerf

iTrader: (15)

We did not assembly Z1's shortblock. As far as losing the oil squirters for a daily driven car, I wouldn't sweat it. Wongy's G35 is driven everyday and he is running the 4.15L BC Stroker Kit.

Z1 Performance

iTrader: (564)

sorry for that Doug!


_jb - we have our own engine builder. Same person has done all our engines for the past 16 years.

The BC VQ35 stroker can take you up to a maximum of 4.15 liters (depending on the bore piston you specify - 4.15 liters requires 100mm bore), and includes your choice of 88mm or 86.4mm Stroke Billet 4340 Crank, Forged 4340 Rods, Custom CP Pistons, rings, pins, and locks, rod bolts, ). You will also need to purchase aftermarket sleeves if you intend to run more than 3.8 liters of displacement.

__jb

iTrader: (3)

Sorry, I should have figured you would both use the same machine shop. I didn't know if these were personal cars or shop cars. You probably have your own connection to get the kits, too. (Doug = Kwame?)

That's good information, thanks Adam.

Do you know if both kits use the standard length rods for all their configurations?

Z1 Performance

iTrader: (564)

doug and kwame are 2 totally different people

both my car and kwame's car are shop cars and personal cars - we got our kit direct, as we sell quite a bit of BC stuff

they have 2 types, std. rods and a high performance rod. I know the "better" one (stronger, rated for higher power/torque) is called the BC625+ Rod and is 5.675"" per their website.

e30cabrio

iTrader: (30)

Are there still issues with the BC 88mm crank& fitment?

str8dum1

iTrader: (11)

nope cuz they dont make it anymore, only 86.4mm stroke. If you want a 88mm get the GTM.

e30cabrio

iTrader: (30)

https://my350z.com/forum/engine/4995...ild-parts.html

I bought this one.

Z1 Performance

iTrader: (564)

Yes they still offer it actually - it's not part of their official catalog anymore, but if it's what you want, they will do it for you - but there is no advantage to it according to our direct discussions with BC. The net difference with the largest piston is 4.07 liters vs 4.15 liters - you tell me how much of a difference that will yield. That is why they introduced the slightly smaller stroke one - because it needs alot less machining (retains squirters), and will yield virutally identical power for all intents and purposes.

There never were issues with it...the issue is on the part of an installer who may be ill experienced for this type of build in the first place. A stroker is shoving 10 lbs of dung into a 5 lbs bag. Some guys know how to do this, others don't. You gotta find the machinist who knows how. The larger stroke crank will simply require alot more machine work and eliminates the factory oil squirters - which again can be compensated for in any number of ways by someone who knows what they are doing in the first place.

e30cabrio

iTrader: (30)

Thanks Adam, from reading this thread it sounded like there was an issue.

I still need rods & pistons for my build. Can you point me in the right direction?

Thanks,

Stefan

Z1 Performance

iTrader: (564)

BC, that would be my suggestion, since all the stuff was designed by them to work together - that's what we did for kwame's

e30cabrio

iTrader: (30)

BC rods & CP pistons since that is what comes in their kit? Am I ok with .20 11.0.1?


Thanks

Z1 Performance

iTrader: (564)

those would be perfectly fine

for the bore, and compression, that is something you'll need to go over with your machinist based on all the other components of your build, goals, etc.

Kwame

iTrader: (78)

Machining that crank to fit in the block will cost you more than what you paid for the crank itself, enjoy.

e30cabrio

iTrader: (30)

I thought it was made for the motor?