How much boost pressure can a built VQ37VHR withstand?

1slow370 · 11-04-2014, 01:59 PM

Himitsu

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elperuano · 11-04-2014, 02:21 PM

At 534/496 1st is useless 2nd have to feather and 3rd is scary fun but I've managed to keep it straight as possible while sometimes spinning. Anything 600+ will be perfect for what I'm looking for. Roll racing. I'm on coils and a quiaffe diff. Has helped a lot. I believe with the right suspension and diff AND gears 600-700 is a great street car.
I don't really have the time to go thru the process to get on a track for laps. Would love to but, calling a few buddies and hitting up deserted streets is much easier for us.

jwick · 11-04-2014, 02:26 PM

Quote:

Originally Posted by elperuano

At 534/496 1st is useless 2nd have to feather and 3rd is scary fun but I've managed to keep it straight as possible while sometimes spinning. Anything 600+ will be perfect for what I'm looking for. Roll racing. I'm on coils and a quiaffe diff. Has helped a lot. I believe with the right suspension and diff AND gears 600-700 is a great street car.
I don't really have the time to go thru the process to get on a track for laps. Would love to but, calling a few buddies and hitting up deserted streets is much easier for us.

What's you rim and tire setup?

elperuano · 11-04-2014, 02:48 PM

Actually is mild aggressive setup. 20x10 20x11.5 255 fronts 275 rears. Around -2.5 camber. Started off as show car then powa came on later.

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.

1slow370 · 11-04-2014, 02:55 PM

Your running a 275 stretched on a 20x11.5" wheel at -2.5 degrees camber? You must have low standards for acceptable traction.

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TopgunZ · 11-04-2014, 02:58 PM

Quote:

Originally Posted by 1slow370

Himitsu

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You bringin the Z back to its roots and going all Japanese on me now?..lol.

Guess Ill have to wait and see.

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, 03:01 PM

Quote:

Originally Posted by TopgunZ

You bringin the Z back to its roots and going all Japanese on me now?..lol.

Guess Ill have to wait and see.

Seems he has no budget in order to be the odd ball smashing FI cars.

1slow370 · 11-04-2014, 03:02 PM

Nah id be typing in hiragana if i wanted to do that lol. Check the build thread, next rebuild its getting turned up to 9k probably going to do internals then too

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jwick · 11-04-2014, 03:02 PM

Quote:

Originally Posted by elperuano

Actually is mild aggressive setup. 20x10 20x11.5 255 fronts 275 rears. Around -2.5 camber. Started off as show car then powa came on later.

I'm running a 275. I thought maybe you had squeezed a lot more tire in a G and I was getting

Why did Nissan go and hamstring the G? Guess it's R-compound time

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.

elperuano · 11-04-2014, 04:46 PM

Quote:

Originally Posted by 1slow370

Your running a 275 stretched on a 20x11.5" wheel at -2.5 degrees camber? You must have low standards for acceptable traction.

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Works for me. I explained how i drive and have never had any problems i couldn't handle. Yes, they're stretched somewhat not that much. Also being a show stance car that is the obvious setup i wanted to run.
I think the quaife diff helped out a lot.

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...

1slow370 · 11-04-2014, 09:24 PM

Eh to each his own i would rather have a car that can easily hook up what it has than one i have to contantly hold back. A 450hp z runs mid to low 12's a 700hp z runs low 12's. Up to 125mph its the same ****. One is just a lot easier to drive.

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11-04-2014, 01:59 PM	#91 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	Himitsu Sent from my HTCONE using Tapatalk __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

11-04-2014, 02:55 PM	#96 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	Your running a 275 stretched on a 20x11.5" wheel at -2.5 degrees camber? You must have low standards for acceptable traction. Sent from my HTCONE using Tapatalk Presto likes this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

11-04-2014, 03:02 PM	#100 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	Nah id be typing in hiragana if i wanted to do that lol. Check the build thread, next rebuild its getting turned up to 9k probably going to do internals then too Sent from my HTCONE using Tapatalk __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

11-04-2014, 09:24 PM	#105 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	Eh to each his own i would rather have a car that can easily hook up what it has than one i have to contantly hold back. A 450hp z runs mid to low 12's a 700hp z runs low 12's. Up to 125mph its the same **. One is just a lot easier to drive. Sent from my HTCONE using Tapatalk __________________ ANSWER PRICE LIST** Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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11-04-2014, 02:21 PM	#92 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 28	At 534/496 1st is useless 2nd have to feather and 3rd is scary fun but I've managed to keep it straight as possible while sometimes spinning. Anything 600+ will be perfect for what I'm looking for. Roll racing. I'm on coils and a quiaffe diff. Has helped a lot. I believe with the right suspension and diff AND gears 600-700 is a great street car. I don't really have the time to go thru the process to get on a track for laps. Would love to but, calling a few buddies and hitting up deserted streets is much easier for us.

11-04-2014, 02:48 PM	#94 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 28	Actually is mild aggressive setup. 20x10 20x11.5 255 fronts 275 rears. Around -2.5 camber. Started off as show car then powa came on later.