How much boost pressure can a built VQ37VHR withstand?

jwick · 11-04-2014, 01:39 PM

Guess I'll chime in...First is worthless, I get most of 2nd if the temperature is above 90, 3rd gear I hook up unless temperatures are below 60. Haven't seen temps in the 40's yet.

Best DynoJet number guess is 480whp/450wtq @ 10psi. I do have the diff bushing upgrade which seems to help.

Nissan370 · 11-04-2014, 01:50 PM

you have to take the good with the bad. i mean if you want to drive the car like normal then dont boost it. we all know you cant just add 5-600hp to a stock car and expect it to run normal with all stock suspension.
redo the suspension to match the power and the car will run like a race car

but then expect to lose so of that comfort you just have to find that zone.

when i had my mustang i made about 550rwhp or so and over did the suspension to support 800 or so hp and it was horrible to drive on a day to day

KratikosG37 · 11-04-2014, 02:53 PM

Quote:

Originally Posted by 1slow370

Yup I have 370whp and I'm running out of traction need to get better tires. 500+ whp is pretty useless on these cars unless you want to go a bazillion mph.

Yep with a N/A build you're powerband is crazy good. Probably feels like 500whp with that tack slinging 8k RPM.

Quote:

Originally Posted by BBRSpeedWorks

I have tons and tons of info on all the work I do...but I will for sure....as far as traction goes I was putting down 500 whp and didn't have a problem with traction out side of first and tires warm..and that's on stock 2014 rays

Yes and no. If you're full throttle you will blow all 3 gears with normal street tires.

I for one can get traction peddleing 1st and 2nd gear catching at the end around50ish MPH. Just my experince.

Quote:

Originally Posted by jwick

Guess I'll chime in...First is worthless, I get most of 2nd if the temperature is above 90, 3rd gear I hook up unless temperatures are below 60. Haven't seen temps in the 40's yet.

Best DynoJet number guess is 480whp/450wtq @ 10psi. I do have the diff bushing upgrade which seems to help.

10psi 480whp/450wtq is the perfect street use power. Just enough to run decent 11's with good driver or enough to blow the doors off a C7 on a 40 to 120mph pull.

It's your build, your goals. VQ37HR don't need to be built.

jwick · 11-04-2014, 03:01 PM

Quote:

Originally Posted by KratikosG37

10psi 480whp/450wtq is the perfect street use power. Just enough to run decent 11's with good driver or enough to blow the doors off a C7 on a 40 to 120mph pull.

It blows the doors off a lot more than a C7, not that I would know

KratikosG37 · 11-04-2014, 03:03 PM

Quote:

Originally Posted by jwick

It blows the doors off a lot more than a C7, not that I would know

Yep. Even with my 8 PSI tune I took out a C6 on a 200ft, and kept up with a GTS Viper.

BBRSpeedWorks · 11-04-2014, 07:58 PM

Quote:

Originally Posted by KratikosG37

Yes and no. If you're full throttle you will blow all 3 gears with normal street tires.

I for one can get traction peddleing 1st and 2nd gear catching at the end around50ish MPH. Just my experince

i guess your tires suck then cuz the ones that i have hold mine just fine and i run the piss out of it everyday....today on the way home i was running 13psi and did a pull against my wife in my talon and still didnt blow off the tires (after tires are warm) and went from 30 to 170 no spins...

My uncle is one of the owners of jegs and when i was younger i raced legend cars..we only did 4 to 8 races a year.i always said it had to much power...he said no car has to much power it just means your driving skill has to improve....he would always say control the car dont react to the car...is what i'm trying to say is we r not in a honda you dont just slam it to the floor and hope it goes where yu want...

11-04-2014, 01:39 PM	#1 (permalink)
jwick A True Z Fanatic Join Date: Dec 2010 Location: Houston Posts: 14,532 Drives: '10 G37 6MT Rep Power: 2465058	Guess I'll chime in...First is worthless, I get most of 2nd if the temperature is above 90, 3rd gear I hook up unless temperatures are below 60. Haven't seen temps in the 40's yet. Best DynoJet number guess is 480whp/450wtq @ 10psi. I do have the diff bushing upgrade which seems to help. __________________ '10 G37T 6MT Graphite/Graphite - BP - G37T Build

11-04-2014, 01:50 PM	#2 (permalink)
Nissan370 Enthusiast Member Join Date: Feb 2011 Location: Baltimore Posts: 431 Drives: 2009 ST BLK 370Z Rep Power: 16	you have to take the good with the bad. i mean if you want to drive the car like normal then dont boost it. we all know you cant just add 5-600hp to a stock car and expect it to run normal with all stock suspension. redo the suspension to match the power and the car will run like a race car but then expect to lose so of that comfort you just have to find that zone. when i had my mustang i made about 550rwhp or so and over did the suspension to support 800 or so hp and it was horrible to drive on a day to day __________________ 370z vsr motorsports single turbo/built motor 9.1cr 525rwhp/450rwtq @ 10.5psi (stock maf maxed out)

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