VQ35DE vs. VQ37?

ImportConvert · 06-24-2010, 10:55 PM

I have heard that the 35's did not really like boost, and the bottom-end was weak. Is the new 3.7 stronger? Are these TT kits "running on the edge" of what the engine can handle at 450whp, or is this a safe level of power for DD'ing the car at on 91* pump gas?

I read the FAQ, but it seemed a bit dated...

FuszNissan · 06-24-2010, 11:02 PM

I don't think we really know yet. No one has seem to blow one up yet

nogoodname · 06-24-2010, 11:12 PM

Quote:

Originally Posted by FuszNissan

I don't think we really know yet. No one has seem to blow one up yet

I believe it has happened already....

FuszNissan · 06-24-2010, 11:16 PM

Really? Who? 370 wise

FuszNissan · 06-24-2010, 11:16 PM

In lieu of a shitty build too

FuszNissan · 06-24-2010, 11:19 PM

Then why did u bring it up..lol

nuTinmuch · 06-25-2010, 12:33 AM

wat

350z_2nr · 06-25-2010, 01:57 AM

Quote:

Originally Posted by ImportConvert

I have heard that the 35's did not really like boost, and the bottom-end was weak. Is the new 3.7 stronger? Are these TT kits "running on the edge" of what the engine can handle at 450whp, or is this a safe level of power for DD'ing the car at on 91* pump gas?

I read the FAQ, but it seemed a bit dated...

ummm my 350 is fine with boost, I'm on stock internals with 9 lbs of boost with APS twins, Greedy Evo TT exhaust, invidia test pipes, and ACT clutch. I ran consistent 12.2-12.4's at the track. I dynoed 457 rwhp btw

Red370 · 06-25-2010, 01:59 AM

Quote:

Originally Posted by 350z_2nr

ummm my 350 is fine with boost, I'm on stock internals with 9 lbs of boost with APS twins, Greedy Evo TT exhaust, invidia test pipes, and ACT clutch. I ran consistent 12.2-12.4's at the track. I dynoed 457 rwhp btw

on a DE engine? better turn that boost down a few bud, that bad boys gonna pop soon. I believe the recommended boost pressure on the APS kit was 7 lbs for a grand total of 350-400whp, which APS deemed as "Safe".

DIGItonium · 06-25-2010, 08:11 AM

IIRC, Sharif had his '03 350Z boosted around 450whp+ with stock internals and never had issues.

350Z_2nr, is yours daily driven as well? How many miles have you put on it since you had the APS kit?

JB-370z · 06-25-2010, 11:48 AM

I know de engines have good tq numbers in terms of scale.

theDreamer · 06-25-2010, 11:59 AM

Like any engine, definition of safe will vary from engine to engine.
From a few 350z I know many guys are running just below 450rwhp and have been for upwards up 30,000 miles or more, with little to no issues (just normal maintenance). Though there are guys who try to run the same thing and run into issues, it comes down to prep, good shop (or install really), and taking care of the car properly. I would not say the 3.7l is any better or worse, but experience of the past has given a lot of what can/cannot be done to the current engine (3.7l).

Lug · 06-25-2010, 01:17 PM

Good info on the different VQ35 engine capabilities:

Google Image Result for http://i140.photobucket.com/albums/r34/GT-Motorsports/GTM%20TT%20G37S/P1010284.jpg

GZ3 · 06-25-2010, 01:28 PM

I loved my DE engine, very torquey, and very tuff. But I'm willing to be the VHR can handle allot more, better...just as the HR did vs the DE

350z_2nr · 06-27-2010, 01:34 AM

Quote:

Originally Posted by DIGItonium

IIRC, Sharif had his '03 350Z boosted around 450whp+ with stock internals and never had issues.

350Z_2nr, is yours daily driven as well? How many miles have you put on it since you had the APS kit?

It's not driven daily, I have had the kit on for 2 and half years and put around 11k on it with the turbos. As for the 7 lbs, no my kit came with a tune from APS set to 9 lbs. That's with the engine management from APS so I don't think i'll be having any problems. I have had absolutely no issues with the car other than traction

YouTube - tt 350z

06-24-2010, 10:55 PM	#1 (permalink)
ImportConvert A True Z Fanatic Join Date: Jun 2010 Location: SWMO Posts: 4,454 Drives: 2019 CX5 GT Reserve Rep Power: 7627	VQ35DE vs. VQ37? I have heard that the 35's did not really like boost, and the bottom-end was weak. Is the new 3.7 stronger? Are these TT kits "running on the edge" of what the engine can handle at 450whp, or is this a safe level of power for DD'ing the car at on 91* pump gas? I read the FAQ, but it seemed a bit dated...

06-24-2010, 11:02 PM	#2 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 542	I don't think we really know yet. No one has seem to blow one up yet __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

06-24-2010, 11:16 PM	#4 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 542	Really? Who? 370 wise __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

06-24-2010, 11:16 PM	#5 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 542	In lieu of a shitty build too __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

06-24-2010, 11:19 PM	#6 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 542	Then why did u bring it up..lol __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

06-25-2010, 12:33 AM	#7 (permalink)
nuTinmuch A True Z Fanatic Join Date: Dec 2009 Location: New Jersey Posts: 1,092 Drives: PG 7AT 370Z Rep Power: 18	wat __________________ nuTinmuch! -- Platinum Graphite 370Z -- Check out my Gallery thread here!

06-25-2010, 08:11 AM	#10 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	IIRC, Sharif had his '03 350Z boosted around 450whp+ with stock internals and never had issues. 350Z_2nr, is yours daily driven as well? How many miles have you put on it since you had the APS kit? __________________

06-25-2010, 11:48 AM	#11 (permalink)
JB-370z A True Z Fanatic Join Date: Apr 2009 Location: Houston, Tx Posts: 1,859 Drives: Stage 2 Twin Turbos Rep Power: 19	I know de engines have good tq numbers in terms of scale. __________________ ll Baker Tuning ll GTM ll Powerhouse Amuse ll HKS ll Up-Rev ll iForged ll AP Racing ll Pioneer ll SPL ll Bride ll Top Secret ll OS Giken ll GTM Stage 2 Twin Turboed 370z (First in Texas, Thanks To Baker Tuning)

06-25-2010, 11:59 AM	#12 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	Like any engine, definition of safe will vary from engine to engine. From a few 350z I know many guys are running just below 450rwhp and have been for upwards up 30,000 miles or more, with little to no issues (just normal maintenance). Though there are guys who try to run the same thing and run into issues, it comes down to prep, good shop (or install really), and taking care of the car properly. I would not say the 3.7l is any better or worse, but experience of the past has given a lot of what can/cannot be done to the current engine (3.7l). __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

06-25-2010, 01:17 PM	#13 (permalink)
Lug A True Z Fanatic Join Date: Dec 2008 Location: Texas Posts: 1,926 Drives: 2006 350Z Rep Power: 20	Good info on the different VQ35 engine capabilities: Google Image Result for http://i140.photobucket.com/albums/r34/GT-Motorsports/GTM%20TT%20G37S/P1010284.jpg __________________ keep Chubbs in your pocket - Chubbs

06-25-2010, 01:28 PM	#14 (permalink)
GZ3 A True Z Fanatic Join Date: Dec 2009 Location: SATX Posts: 3,296 Drives: Z Rep Power: 22	I loved my DE engine, very torquey, and very tuff. But I'm willing to be the VHR can handle allot more, better...just as the HR did vs the DE

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