How much boost pressure can a built VQ37VHR withstand?

BBRSpeedWorks · 11-06-2014, 11:36 AM

I believe it was phunk that would have been on track for 10 sec barrier but the clutch let go...terribleone and the F.I. guys did there time on stock suspension. Very nice I think they will hit when ever they try

jwick · 11-06-2014, 11:38 AM

Quote:

Originally Posted by TopgunZ

Here you go. Those DE engines were only good for about 425whp before they let go. So instead of building that engine and putting on a smaller pulley and turning up the boost...I just sold both kits, the car, and bought the VHR.

BUT...Were we just speaking of 400tq at 4K. I had 411 by 3250...Lol..

Nice...but I hit 400wtq around 3250ish

BBRSpeedWorks · 11-06-2014, 11:39 AM

Quote:

Originally Posted by TopgunZ

Here you go. Those DE engines were only good for about 425whp before they let go. So instead of building that engine and putting on a smaller pulley and turning up the boost...I just sold both kits, the car, and bought the VHR.

BUT...Were we just speaking of 400tq at 4K. I had 411 by 3250...Lol..

Idk y everybody think singles spool slow....I'm just wondering if I'm going to be laggy after my built motor goes in...

KratikosG37 · 11-06-2014, 11:40 AM

Quote:

Originally Posted by FPenvy

i'm so sorry i forgot to add 370 before Z. figured being on the 370 forum we were speaking of them and the 3.7 engine that the current Z and G have that we are all also speaking about boost with.

i'll be 100% specific in future posts to avoid any confusion.

It's ok.

IMO VQ is VQ but I see the major different between DE/VHR

Quote:

Originally Posted by TopgunZ

Here you go. Those DE engines were only good for about 425whp before they let go. So instead of building that engine and putting on a smaller pulley and turning up the boost...I just sold both kits, the car, and bought the VHR.

BUT...Were we just speaking of 400tq at 4K. I had 411 by 3250...Lol..

Yes, but DE we're TQ monsters if built.

Yes yes you made you're point.

*wearing knee pads*

TerribleONE · 11-06-2014, 11:40 AM

Quote:

Originally Posted by BBRSpeedWorks

Idk y everybody think singles spool slow....I'm just wondering if I'm going to be laggy after my built motor goes in...

What are you dropping the compression down to?

BBRSpeedWorks · 11-06-2014, 11:42 AM

Quote:

Originally Posted by TerribleONE

What are you dropping the compression down to?

9:1...

BBRSpeedWorks · 11-06-2014, 11:44 AM

I like it now cuz I don't really have lag....

FPenvy · 11-06-2014, 11:47 AM

Quote:

Originally Posted by TerribleONE

F.I. and I are gonna turn the boost up on my car once I have my fuel system install and take a crack at breaking that 10 second barrier.

well what are you waiting for lol get that kit in there.

TerribleONE · 11-06-2014, 11:48 AM

Quote:

Originally Posted by BBRSpeedWorks

9:1...

Quote:

Originally Posted by BBRSpeedWorks

I like it now cuz I don't really have lag....

Things are definitely going to get a little more laggy but I don't think you are going to be disappointed. As soon as that 6266 (I think that's what your running?) Hits 15-16psi+ you will forget all about the lag! I think if I had my choice though I would of went with a custom 10:1 if possible.

Quote:

Originally Posted by FPenvy

well what are you waiting for lol get that kit in there.

Check out my build thread! Car is under construction!

Chuck33079 · 11-06-2014, 11:51 AM

Quote:

Originally Posted by TerribleONE

I think if I had my choice though I would of went with a custom 10:1 if possible.

FPenvy · 11-06-2014, 11:52 AM

Quote:

Originally Posted by TerribleONE

Check out my build thread! Car is under construction!

oh i have

TopgunZ · 11-06-2014, 11:55 AM

If you can go 10:1 then you should. It will be more fun out of boost and will get things spooling better. Im sticking with 11:1 for those reasons.

BBRSpeedWorks · 11-06-2014, 11:57 AM

Quote:

Originally Posted by TerribleONE

Things are definitely going to get a little more laggy but I don't think you are going to be disappointed. As soon as that 6266 (I think that's what your running?) Hits 15-16psi+ you will forget all about the lag! I think if I had my choice though I would of went with a custom 10:1 if possible.

I'm fine with alil...I wanted 9:1 for more boost..not worried to much about off boost performance. Just don't want it to be terrible lag...If that makes sense. ..I will never run my car from idle to redline...

KratikosG37 · 11-06-2014, 11:58 AM

Quote:

Originally Posted by BBRSpeedWorks

Idk y everybody think singles spool slow....I'm just wondering if I'm going to be laggy after my built motor goes in...

I don't think that. It all depends on kit, tune, and engine set up.

Most single turbos don't spool as fast as twins. That's my point when you said, "I don't spin".

TopgunZ · 11-06-2014, 12:11 PM

A properly sized turbo (like the 6266) will not be laggy. Singles get a bad rep as being that way because guys in Evo's and STI's are running giant turbos and are going for 800whp out of a 4 cyclinder engine. Those things are laggy as hell.

The fact that we have 3.7 liters of displacement makes us singles comparable to twins. Twins will still spool the fastest though. Now if they weren't just so damn hard to install.......

11-06-2014, 11:36 AM	#196 (permalink)
BBRSpeedWorks Premium Member Join Date: Dec 2013 Location: Ft. Stwart Posts: 366 Drives: 370z,350z,300z,talon Rep Power: 12	I believe it was phunk that would have been on track for 10 sec barrier but the clutch let go...terribleone and the F.I. guys did there time on stock suspension. Very nice I think they will hit when ever they try TerribleONE and FPenvy like this. __________________ God'Z Gift.

11-06-2014, 11:44 AM	#202 (permalink)
BBRSpeedWorks Premium Member Join Date: Dec 2013 Location: Ft. Stwart Posts: 366 Drives: 370z,350z,300z,talon Rep Power: 12	I like it now cuz I don't really have lag.... __________________ God'Z Gift.

11-06-2014, 11:55 AM	#207 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	If you can go 10:1 then you should. It will be more fun out of boost and will get things spooling better. Im sticking with 11:1 for those reasons. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

11-06-2014, 12:11 PM	#210 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	A properly sized turbo (like the 6266) will not be laggy. Singles get a bad rep as being that way because guys in Evo's and STI's are running giant turbos and are going for 800whp out of a 4 cyclinder engine. Those things are laggy as hell. The fact that we have 3.7 liters of displacement makes us singles comparable to twins. Twins will still spool the fastest though. Now if they weren't just so damn hard to install....... jwick likes this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

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