Actually, those kind of NA horsepower numbers are possible on a very high compression (over 15 to 1) VQ with full Motec EMS and a LOT of other work. It is not a streetable engine by any stretch of the imagination and would cost more then the car did brand new, a lot more.

Hell, my old racing Datsun SOHC two valve L6 3L made 294 at the rear wheels with 14 to 1 CR, Motec, and lots of custom parts. A VQ with variable valve timing, 4 valves per cylinder, and .5L more displacement should be able to add a bunch more. Typical top end NA race engines make 120hp per liter.

 

i think the point is that this car doesnt have a race engine or 375 whp

 

this thread is made of 100% win

 

i can haz batmobile?

 

to tell you all the truth 375 whp is possible check out jeimportperformance they did a 4.1 stroker in a g35 and made 376 hp and 347tq on a dynapack hub dnyo but to the OP i doubt your buddies n/a z made 375 wheel hp

 

what if it was rebuilt to 4.2 or 4.5L? would that not possibly produce those numbers?

 

OP is still a herb

 

somehow i doubt this kid built a high compression stroked out VQ, but yeah, it would be possible

 

Found that N/a build http://www.jeimportperformance.com/n...s/Stroker_VQ35
Video of the dyno is at the bottom as well...

Tuned with an e-manage, all the money for a stroker and use a cheap ems

 

lol nice. is it the dyno that is bolt on the hub, or does it spin a roller?

 

Its possible....did u buy it from Chuck Norris?

 

ITS locked on to the hub

 

no but you can haz the tumbler

 

Chuck Norris can haz RSX??

 

Is this for real? I'd be interested to hear more from this shop. There are a lot of talented guys struggling to make 300rwhp...and here we have 376? Someone educate me.

Thanks

 

not familiar with dyno graphs but usually they state WHP, in their case they didn't. . . and doesn't it say flywheel hp at the top of it?

 

someone one on here put a TITAN 5.7L engine in a Z.... that could be a nice start for a dream! looooooool

 

Most of the people struggling to make 300hp are using the stock bore and stroke VQ35. The engine in this article increases the size of the VQ from 3.5 liters to over 4.1 liters. It has sleeves so the engine can be bored larger and a new stroker crankshaft to increase the overall size of the engine. More cubic inches (liters) makes more horsepower.

The Dynapack in the article seems to be measuring or calculating horsepower and torque at the flywheel. I'm not sure what's up with that. I don't know much about DynaPack dynos. It would be nice if they tested the engine on a DynoJet so we all could relate.

There really is no secret though. The BC stroker kit is very expensive and its installation is more complicated and expensive that assembling a normal VQ35 engine. I thought about getting one but didn't want sleeves and didn't want to spend the extra money on the stroker kit.

This is the first NA stroker kit anyone has built. There isn't much other information available on that combination. Time will tell...

 

I apologize, I should have read the sheet more carefully. It clearly says "fly wheel power". I assumed it was rwhp.

I'll call this shop on monday to ask more about this. Anyone care to guess at the cost of this build and actual rwhp numbers?

Thanks,
Justin

 

set up a race... at a drag strip.... and we can see whats the diff between adams 303whp and this 376hp car