Whats the most Hp the VQ35DE can take stock;no pistons,rods and no block work. Just curious because I dont want to blow the motor. I know the VQ can't take over 8lbs of boost on the Greddy kit or so I've heard from my tuner. Any response is cool so please give me your input




Gonzo

 

Being safe... i would say around 404rwhp and 410rwtq at 8 psi with propper tune... alot of the greddy tt Z's around here are running 8 and at the numbers i listed.. But with the greddy 8 is just perfect 9 would be pushing it. And upgrade to the EU... do you have the techno square complete re-flash????????.... if so not a good idea with F/I @ 7100 rpms you will blow your motor at 8psi. ?????

 

where did you 404 rwhp from, kind of a random number wouldn't you say?

Alot of people are making quite a bit more than that at slightly higher boost safely. It is all in the tune.

 

I am at 8.5-9psi on my Greddy kit. 450whp and no problems yet.

 

I was just curious about how much I can push the stock block of the VQ because I bought new parts(JWT cams, Crawford plenum and Greddy E-01 Boost controller). I'm about 330- 340 RWHP right now with 5lbs but just wanted to get some more info about if any folks have holes on the side of the motors . I didn't know having your ECU reflash and being F/I would matter but if you have a link saying that it messes with the motor in any way. Friends told me as long I have it tuned correctly it shouldn't matter but I over heard that the VQ has weak pistons and rods; and shouldn't be push too much. Just wondering what that magic number is till I've to upgrade .





Gonzo

 

Me too. 442whp and no problems after 3K miles.

 

The Greddy kits MUST be flashed for timing. We have reliable made 400 to 450 @ 8 to 9 psi on over 20 cars with the flash. Timing is by far the biggest issue with these cars. The factory ECU will advance timing on you at any time.

 

I love how people say their car is "reliable" after just a couple thousand miles...

 

FWIW We have a couple of cars that have put down this power down for quite a while. One greddy car we did the install and tune on was run hard for over 18K miles before it was in an accident that totaled it.

 

I am using the TS reflash for the greddy kit just for the timing maps. the fuel tables were left at stock settings and adjusted with the EU. So far it is working good.

 

There's the $10,000 question.

I would say anywhere from 400-550 RWHP depending on the parts used and tune.

 

What does your TS turbo reflash consist of? I have the complete TS reflash now, but plan to go back to stock before going FI in a few months. Thanks

 

There is no real answer to this question as of yet. The amount of power that guys are running keeps going up and we don't have motors consistantly popping @ a certain power level yet so there is no definite "max".

 

404 rwhp is from Godspeed here in Michigan, all the greddy Z's he did came out with that rwhp!

 

Hey don't do it, just get the limited spec... speed limit only. Rev to 7100 is TERRIBLE for F/I cars to much strain on the motor. As for the remaping get the EU... that takes care of everything. I had to get my ecu back to stock.. was messing up timing and wrong codes. Just get the speed limit taken off and your set. The emanage ultimate (EU) takes care of everything.

 

467rwhp at 9psi and 7000rpm redline. daily and nightly highway races 2nd,3rd,4th,5th gear. you couldnt beat on a car harder without putting it on a road course. around 15,000 miles like that before tearing down for build up.

With a piggyback its going to be as hard to get as good of a tune, I had the FCON standalone. But assuming the tune is good, 7000rpm and over 450rwhp is no problem at all.

as for the reflash, i dont think its needed at all. you can pull out timing with the e-manage that comes with the greddy kit, APS kit already pulls timing. the only reason i would reflash is for higher rev limiter... 6500 rpm blows when you have twin turbos.

 

Phunk do you know if the APS Unichip pulls timing above 6500 rpm?

 

i cant recall for sure as I only took a peek at the maps once for a brief moment... however I am pretty sure that it does. When a good tuner builds maps for a car, he doesnt leave the out of range RPM/Load sites blank, they will usually at least continue on with what was already happening with averaged interpolation... or they will at least set ultra conservative settings in those ranges.

However, to double check this, I would shoot an APS dealer a email with that question.

 

I just shot Peter a PM for his imput on this...Thanx

 

The AAM Spec ECU reflash is a complete re-mapping of the timing tables in the ECU. The fact of the matter is the factory ECU has three different timing maps. Generally the vehicle operates on the middle map. If and when the ECU "decides" to switch to the advanced timing map there is a significant risk of detonation. When using a timing solution like the Greddy Emanage the problem is that the values in the Greddy Timing Map only take into account the base timing in the middle map. When (it is a matter of when not if) the ecu goes to the advance map those Greddy Timing Values are putting you in dangerous territory. I replace all three timing maps with a custom program that was developed on the Greddy TT shop car which is putting out well over 450RWHP with stock motor, and has been turned up to over 11 psi on the street at times. My flash is also dyno, street, and track proven on well over 20 vehicles. If you still wish to use the Greddy or other timing solutions do so only once the three maps have been stabalized by me with the flash.