the more I think about it, I think it fits the vortech/ATI kits really well

at low rpms, the bigger chamber lets more air naturally come in to make good power down low. Then up high where big liter engines start falling on their face at high rpms because the air doesn't have enough time to fill the chamber, the vortech comes along and starts upping the boost more and more forcing the engine to stay efficient.

It'd lower the stock redline, but I don't think you'd really want to rev a supercharger up to 7500+ rpms anyway because the belt is so damn big. It'd be like trying to rotate a tractor wheel to 200 mph, it'd fall on it's face, while a turbo would have no issue with reving that high with the small belt

I guess I see this kit as working well with superchargers, while reving to 8000 rpms with a ferrea valvetrain or destroker kit to be better for turbo guys

So if you have ferrea Ti valve springs, and ported heads and big cams, that'd pretty much keep your redline from lowering and yet you wouldn't be in the danger zone of possibly breaking a belt.


I think it'd tilt the dyno curve a little while raising power overall. It'd up the low end a lot, while starting to damp the high end from going super high, which I can see being an issue with the vortech at crazy high boost. I think it'd would create a more balanced car. Meanwhile, the bigger chamber lowers the boost pressure on the internals, even though the power would improve. The only downside I see is more friction on the crankshaft, but the crank is one of the strongest parts of this engine so I don't think I'd worry much about that.

The only thing I'd be paranoid about is this kit or even stroking in general on this engine hasn't proven itself as reliable yet

 

Im guessing the BC kit is a stroke and a bore kit?
Personally i'd bore it and destroke like a lot of maxima guys do, but im a broke *** college kid.

 

i might be doing this stroker kit from GTm by early next year i cant wait but i need to see how good it really is because the price aint all that pretyy they will have a 3.8 and a 4.2. Im going with the 4.2 and fully built heads just have to wait a bit. Brian crower also has a 4.15L go to their site.

 

only thing I do not like about the Brian crower kit, is I've never heard a single good thing about CP pistons.

Actually I've heard CP pistons use a lower grade metal and are prone to rings chipping

 

CP Pistons are said to be the best american made pistons available, according to many engine machinists that I have spoken with over the years. I have personally used them tons of times, and when we used to sell our own 3SGTE stroker kit, CPs were used and never had a problem. They seem very high quality to me, and I have never had a problem with one. But I am not a piston manufacturer, so I could not really tell you what it is that supposedly makes them better.

A properly tuned engine will not crack the ring lands. Unless your pistons have terribly small ring lands, like our stock NA ones, you dont need to worry about it.

 

AR Fabrications has a stroker kit...

They are a nice shop and they do lots of custom work.

I've only heard positive things, you guys should check it out.

 

Ok, everybody, inhale..... and hold your breath until THAT comes out.

 

We have been running the AEBS stroker kit for over a year now. At low boost we still made 680 DD numbers and that is with a completely stock head, cams, etc. It is sad but I haven't been on the dyno in over 5 months. Hopefully Saturday I will be able to get it back on. There were some definate problems with the AEBS motor that we had to fix before it could be installed. I would highly recommend the Brian Crower Stroker kit as we will be using this for our 350z and most likely our Supra.

 

I am not sure if you are referring to the $8k AEBS motor or the $8k Magnetti Marrelli. Either way, neither one costs that much.

 

$8k Magneti Marrelli

Maybe a tad exaggerated.. Just giving him an idea. $6500- Untuned.

 

Wait on this one from GTM, we'll be selling it as well!!!!

 

Magneti Marelli $4,995
Boost Control w/ PWM Valve
includes NTK High Speed Sensor


HKS FCon V Pro $3,490
no wideband
no boost control that I know of

 

Wow, I can just imagine a sleeved and stroked VQ35 using the FCON. Must...get...out...of...head...

 

just curious ,why do you highly recommend the Brian crower kit .

 

We have heard really good things about the Brian Crower kit with the 2JZ motors. His family has a good reputation . If you would like to work something out on the GT Motorsports' motors just give me a call. Always looking for new options.

 

Actually, $3490 includes the full FCON setup: FCON, Knock Amp, and all harnesses and sensors.

The Fcon alone is $1399, but the knock amp is really needed to get the most benifits out of the system.

 

wait, why do you need the Fcon for the stroker kit? wouldn't it just need a tune?

 

we did have a chance to examine and test fit the brian crower kit in the vq and I hate to tell you this , it does not work or fit for many reasons

1- crank hit the block (clearance issue)
2-pistons bind and strike the crank (design issue)
3-no oilier (completly eliminated due to poor design)
4-not enough engineering went into this STROKER kit otherwise you should not have all these problems .

all this info is 100% factual , this kit was supposed to be installed in a sema vehicle 2 weeks ago and let me tell you there were a lot of disappointed people to say the least .

Greg, we would love to show you what we can offer as far as GTM engines ,we are way ahead of the game .I will call you

 

A picture is worth a thousand words, so much for just going by "family reputation".

 

how much power could you expect from boring out the engine to 4.2 liters and keeping is NA with higher compression pistons. An n/a build would be very interesting. do all bolt ons, cams, and bore out engine, and you might have a naturally aspirated powerhouse thats reliabe. how much power you think could be made?