Question for you vq guru's
 

I blew my motor 450rwhp it leaned out at 5000rpm for god know what reason and i have to buy a new motor so my question ??? is which motor has the better stock bottom end ( con rod ) the vq35hr with its longer block and rod or the vq35de. My third option is to have one built or buy a long block; below is a link where i can buy a vq long block with a built bottom end and ported heads

http://importpartspro.com/niin1.html

The HR should be able to handle more. 450whp was already up there... and pretty hefty for the DE - so props on that... most don't push much past 400whp on stock engines.

I'd ago ahead and biuld it man. Why not? Car's already down for awhile. That way you can come back and not have to worry about which stock engine is stronger, because you can biuld one that's bullet proof.

thats the way that i was leaning it is going to cost me almost the same to build it as it would cost me to buy an hr motor

i was using the greddy profec BC 4 on low 10 on high, for now i am driving my 1993 300z 2+2 with a jdm twin turbo swap that makes 500wrhp but i am a mechanic and i dirve 25 miles to work in traffic with a stage 3 clutch thats hard as a rock no traction control and it rains every day in florida in the summer fun lol....

Lol, well... you could get the HR, drive the car, and then get it biult later. I just don't know your finacial situation.

Who did your tuning? I'm still impressed by 450whp on a stock VQ35DE. Very nice. How long had it been running like that?

Are you trying to put the HR in a g35? I suspect you are going to run into major clearance issues and it will require quite a bit of fab work. At that point you should just go ls1 or rb

Z fever tampa, FL. i could make more hp i am guessing about 600hp at 15psi but i was worried about the bottom end and for good reason i had about $15,000 in mods. My next project was going to be a 4.1L stroker

Just build the VQ35de and call it a day. Why mess ariund with stock blocks at this point. Since the car is down, just get a built block so that you don't have to worry about blowing your stock block again. 450rwhp is way too much for a stock block anyways.

took the words outta my mouth...

I got a short VQ block for sale:hello:

Here is a good thread on could of, would of, and should ofs for the VQ engines:

http://my350z.com/forum/showthread.php?t=350550

It is very useful so long as you quickly identify the off-topic posts and continue on.

also, bring the car to me to tune so it wont blow up this time...



we have tuned more VQs than ANYone in Florida....

also, make sure you let us know if you need anything (built motor, parts, ect) we can handle it all.

That is the first thing you need to figure out! :eek:

Take it to Performance Factory if you're in FL near them, otherwise Forged Performance in Atlanta. You can't just replace a DE block with an HR.

+1 If I was in Florida, only these guys can touch my car

Doing an HR swap into a DE chassis takes much more than just the motor.

I agree with the general consensus: Install a forged shortblock. If we can help, just ask. And definately have it tuned and setup by an experience VQ35 shop. THANKS!