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-   -   How much boost pressure can a built VQ37VHR withstand? (http://www.the370z.com/forced-induction/94762-how-much-boost-pressure-can-built-vq37vhr-withstand.html)

Chuck33079 11-05-2014 01:05 PM

So you can go WOT all through second gear and have it hook up the whole time?

1slow370 11-05-2014 01:08 PM

If he can he must have a water bottle stuck under his gas pedal. I'm on the slightly superior nismo tires and and a second gear pull for me ends up spinning loose, and even if i ease on the throttle if I'm on the boards at 6k it breaks loose again, and that was at the F'n drag strip NA. with a 3.56 rear gear, coils, bushings, and running less camber too.

BBRSpeedWorks 11-05-2014 01:09 PM

Yes and I run to 75k-8k redline...the second pull in the video I let off at 165-170mph

BBRSpeedWorks 11-05-2014 01:11 PM

Quote:

Originally Posted by 1slow370 (Post 3022866)
If he can he must have a water bottle stuck under his gas pedal. I'm on the slightly superior nismo tires and and a second gear pull for me ends up spinning loose, and even if i ease on the throttle if I'm on the boards at 6k it breaks loose again, and that was at the F'n drag strip NA. with a 3.56 rear gear, coils and bushings too.

No water bottle under the pedal..lmao..

FPenvy 11-05-2014 01:13 PM

Quote:

Originally Posted by BBRSpeedWorks (Post 3022850)
What's up. You it think it well get hit...I'll take it down if so...I'm just trying to show it gets traction. ...

you got beat..........by a cobalt.........:stirthepot:

yea i'd say take it down out of self respect lol

Chuck33079 11-05-2014 01:14 PM

Quote:

Originally Posted by 1slow370 (Post 3022866)
I'm on the slightly superior nismo tires and and a second gear pull for me ends up spinning loose, and even if i ease on the throttle if I'm on the boards at 6k it breaks loose again

I'm on the same wheels / tires and this is exactly my experience as well.

1slow370 11-05-2014 01:16 PM

Quote:

Originally Posted by Chuck33079 (Post 3022879)
I'm on the same wheels / tires and this is exactly my experience as well.

Bridgestone must have screwed up when they made BBR's S04's and used R comp Tread rubber

BBRSpeedWorks 11-05-2014 01:17 PM

Quote:

Originally Posted by FPenvy (Post 3022876)
you got beat..........by a cobalt.........:stirthepot:

yea i'd say take it down out of self respect lol

I ain't got no sham and I never lost when he passed me I was already of the gas and the second I started in third and still walked him down...

BBRSpeedWorks 11-05-2014 01:20 PM

Quote:

Originally Posted by 1slow370 (Post 3022884)
Bridgestone must have screwed up when they made BBR's S04's and used R comp Tread rubber

I guess I'm lucky...lol...idk it works that's all I know...I don't have other tires to compare...and that night it was in the 70 degrees range outside

FPenvy 11-05-2014 01:20 PM

Quote:

Originally Posted by BBRSpeedWorks (Post 3022886)
I ain't got no sham and I never lost when he passed me I was already of the gas and the second I started in third and still walked him down...

i know this..........but i had to bust balls a little bit. :tiphat:

BBRSpeedWorks 11-05-2014 01:22 PM

Hye man its a bad *** cobalt...at least that I have seen..and the little fucker was no lift shifting...

KratikosG37 11-05-2014 04:17 PM

Quote:

Originally Posted by 1slow370 (Post 3022866)
If he can he must have a water bottle stuck under his gas pedal. I'm on the slightly superior nismo tires and and a second gear pull for me ends up spinning loose, and even if i ease on the throttle if I'm on the boards at 6k it breaks loose again, and that was at the F'n drag strip NA. with a 3.56 rear gear, coils, bushings, and running less camber too.

:iagree:
Quote:

Originally Posted by BBRSpeedWorks (Post 3022869)
Yes and I run to 75k-8k redline...the second pull in the video I let off at 165-170mph

7.5k to 8k RMP? My shift point is 7.1k and that's the climax tq spot for my powerband.

After reviewing the video at a 40mph pull. Your turbos probably have longer lag response. Know for a fact 8 psi GTM stage 2 stock block setup you will kick sideways and have to peddle it out. That's my guess being that your top end is more aggressive.

Thanks for sharing. Comparing my car to yours is Apples and oranges.

BBRSpeedWorks 11-05-2014 05:02 PM

Quote:

Originally Posted by KratikosG37 (Post 3023143)
:iagree:


7.5k to 8k RMP? My shift point is 7.1k and that's the climax tq spot for my powerband.

After reviewing the video at a 40mph pull. Your turbos probably have longer lag response. Know for a fact 8 psi GTM stage 2 stock block setup you will kick sideways and have to peddle it out. That's my guess being that your top end is more aggressive.

Thanks for sharing. Comparing my car to yours is Apples and oranges.

Agree with apple an oranges ..as far as Lag I'm not sure idk what ur twins spool at but I hit full boost right about 3200 rpms to 3500 rpms I think that's pretty good for a single turbo..

BBRSpeedWorks 11-05-2014 05:15 PM

If im just drive and pull up on some and run yes my tires well spin but let's say I'm rolling around 3k in 2nd smash it do a nice Rollin burn out after and only after that the tires are nice and warm it sticks just fine in second and third...

Chuck33079 11-05-2014 05:23 PM

Quote:

Originally Posted by BBRSpeedWorks (Post 3023178)
but let's say I'm rolling around 3k in 2nd smash it do a nice Rollin burn out after and only after that the tires are nice and warm it sticks just fine in second and third...

That's hardly the same thing the rest of us were discussing.

BBRSpeedWorks 11-05-2014 05:24 PM

Quote:

Originally Posted by Chuck33079 (Post 3023182)
That's hardly the same thing the rest of us were discussing.

hows that? I mean ive said from the start i warm my tires up if your out there doing pull with semi cool tires yes it's going to be lose and walk everwhere...

BBRSpeedWorks 11-05-2014 05:25 PM

Quote:

Originally Posted by KratikosG37 (Post 3023143)
:iagree:


7.5k to 8k RMP? My shift point is 7.1k and that's the climax tq spot for my powerband.

After reviewing the video at a 40mph pull. Your turbos probably have longer lag response. Know for a fact 8 psi GTM stage 2 stock block setup you will kick sideways and have to peddle it out. That's my guess being that your top end is more aggressive.

Thanks for sharing. Comparing my car to yours is Apples and oranges.

also the second pul in that video was a 3rd gear pull...

Chuck33079 11-05-2014 05:29 PM

Quote:

Originally Posted by BBRSpeedWorks (Post 3023184)
hows that?

Of course people can hook up after a burnout. We were disputing whether a ~500whp Z could hook up in second. You swore up and down that you could, and then after all the debate you mention that unless you do a burnout you can't hook up second either. :facepalm: That's either being deliberately disingenuous, or you didn't grasp what the rest of us were discussing.

BBRSpeedWorks 11-05-2014 05:32 PM

i mean how do you warm up your tires???

BBRSpeedWorks 11-05-2014 05:36 PM

i mean if people are just starting the car and doing pulls of course it's not going to hook...it's 500whp car... i guess i'm wrong for talking then....i said a 100 times i warm my tires there is a 1k different ways to do....i re word my statements....IF you do a rollin burnout and warm your tires up they will stick...sorry...

1slow370 11-05-2014 05:41 PM

so its a case of " i punch it in second and my tires self warm until they are ready to grip awesome then i shift to third" ok yeah thats pretty much what i get too.

Chuck33079 11-05-2014 05:44 PM

Quote:

Originally Posted by 1slow370 (Post 3023197)
so its a case of " i punch it in second and my tires self warm until they are ready to grip awesome then i shift to third" ok yeah thats pretty much what i get too.

:iagree:

That's what everybody gets. I mean, we're not all so cool as to post vids of us racing people on the street, but the rest of it is pretty much the standard. I thought homie was doing something special and was getting second to hook without burning off 2k miles worth of rubber on the tires.

BBRSpeedWorks 11-05-2014 05:48 PM

Quote:

Originally Posted by 1slow370 (Post 3023197)
so its a case of " i punch it in second and my tires self warm until they are ready to grip awesome then i shift to third" ok yeah thats pretty much what i get too.

no more like " i punch it in second burn out then let off and go have fun cuz my tires hook"

i have no reason to lie...i show you a video and still get called liar..i mean what do want me to say i'm sorry you dont get grip...idk sorry i'll shut up...lol...

1slow370 11-05-2014 05:48 PM

I can't wait to get some real rubber back there so i can hook 2nd gear flat out from 3000 up, got just about everything except real tires at this point then its back to the strip!

BBRSpeedWorks 11-05-2014 05:50 PM

Quote:

Originally Posted by Chuck33079 (Post 3023200)
:iagree:

That's what everybody gets. I mean, we're not all so cool as to post vids of us racing people on the street, but the rest of it is pretty much the standard. I thought homie was doing something special and was getting second to hook without burning off 2k miles worth of rubber on the tires.

i'm not trying to be "cool" just trying to show it works...

Chuck33079 11-05-2014 05:51 PM

That video showed something, all right.

1slow370 11-05-2014 06:00 PM

Quote:

Originally Posted by Chuck33079 (Post 3023209)
That video showed something, all right.

that cobalt drivers have sweet handlebars and shoot dimly lit videos from rear third quarter perspective?

At least he wasn't rollin on stretched 20's at 170mph on shittty public roads so I do give him props for that.

Edit: and just for some perspective I live in cali most of the modded cars on the road here are running stretched low pro's and I laugh my asz off everytime i drive past one on the highway after a blow-out with a FUCKEDUP rim and his tread lying 100yards in front of the car.

phunk 11-05-2014 06:18 PM

Quote:

Originally Posted by TerribleONE (Post 3022652)
This run was done on 10PSI. Right around 530-550WHP.

It was also done on 26" Mickey Thompson bias ply slicks if I recall correctly?

KratikosG37 11-05-2014 06:33 PM

Quote:

Originally Posted by BBRSpeedWorks (Post 3023203)
no more like " i punch it in second burn out then let off and go have fun cuz my tires hook"

i have no reason to lie...i show you a video and still get called liar..i mean what do want me to say i'm sorry you dont get grip...idk sorry i'll shut up...lol...

Hey it's ok. Now we know you we're comparing a single turbo that spools at 4k v.s. Us twins that spool at 3.2k rmp. Should have caught it when you said 8k rmp shift point.

Car looks clean and the video was well put together. Takes balls to hit 170mph on open road(personally 120mhp in 5th is my shut down point)

None the less we we're on two different aspects of FI. Just take in mind you're hitting 300wtq at 4k rmps and twins usually hit 400+wtq at 4k rmps. Big different, but when my smaller turbos peak at 6.6kish yours is just beginning to open up.(example)

Thanks again for your input.

BBRSpeedWorks 11-05-2014 06:39 PM

Quote:

Originally Posted by KratikosG37 (Post 3023239)
Hey it's ok. Now we know you we're comparing a single turbo that spools at 3.5k v.s. Us twins that spool at 2.2k rmp. Should have caught it when you said 8k rmp shift point.

Car looks clean and the video was well put together. Takes balls to hit 170mph on open road(personally 120mhp in 5th is my shut down point)

None the less we we're on two different aspects of FI. Just take in mind you're hitting 230wtq at 40mph and twins usually hit 400+wtq at 2.5k rmps. Big different, but when my smaller turbos peak at 6.6kish yours is just beginning to open up.

Thanks again for your input.

Anytime...I'm not trying to offend anyone. You can hit 8 psi at 2.2k dam I was thinking more around 3k...but any way yes its a different world. 2nd gear 40 is around 4k I think which is prime starting point for my car tires hold just fine and that's all I was trying to say...

KratikosG37 11-05-2014 06:44 PM

Quote:

Originally Posted by BBRSpeedWorks (Post 3023244)
Anytime...I'm not trying to offend anyone. You can hit 8 psi at 2.2k dam I was thinking more around 3k...but any way yes its a different world. 2nd gear 40 is around 4k I think which is prime starting point for my car tires hold just fine and that's all I was trying to say...

Was comparing at 10psi 480whp, but 3.2k I'm about 4 psi(320ishwtq)

4k on a single unit is still awesome power, but if your not blowing your tires 5k to 7k then :tiphat:

jwick 11-05-2014 06:53 PM

Quote:

Originally Posted by KratikosG37 (Post 3023245)
Was comparing at 10psi 480whp, but 2.2k I'm about 4 psi(320ishwtq)

4k on a single unit is still awesome power, but if your not blowing your tires 5k to 7k then :tiphat:

You have a Dyno graph of your setup? I've messed with several GTM kits and I've never seen one come on that early. Even the FI kits don't spool like that.

BBRSpeedWorks 11-05-2014 06:54 PM

Quote:

Originally Posted by KratikosG37 (Post 3023245)
Was comparing at 10psi 480whp, but 2.2k I'm about 4 psi(320ishwtq)

4k on a single unit is still awesome power, but if your not blowing your tires 5k to 7k then :tiphat:

ya 4k was just that pull i'm full 10psi at 32 to 35....with my twin scroll i should be right behind you tt guys...

TerribleONE 11-05-2014 07:04 PM

Quote:

Originally Posted by jwick (Post 3023250)
You have a Dyno graph of your setup? I've messed with several GTM kits and I've never seen one come on that early. Even the FI kits don't spool like that.

Agreed would love to see a dyno graph

KratikosG37 11-05-2014 08:06 PM

Quote:

Originally Posted by KratikosG37 (Post 3023245)
Was comparing at 10psi 480whp, but 2.2k I'm about 4 psi(320ishwtq)

4k on a single unit is still awesome power, but if your not blowing your tires 5k to 7k then :tiphat:

Quote:

Originally Posted by TerribleONE (Post 3023260)
Agreed would love to see a dyno graph

my apologizes, was posting on my iphone wasn't thinking clearly. i''l edit my RPM range. 3 to 3.5k is the correct guess.

jwick 11-05-2014 08:28 PM

Quote:

Originally Posted by KratikosG37 (Post 3023350)
my apologizes, was posting on my iphone wasn't thinking clearly. i''l edit my RPM range. 3 to 3.5k is the correct guess.

That makes more sense. My twin scroll has a boost threshold under 2.5k.

Torque looks like the below. Rough estimates as my tuner has a Mustang and best we can tell it reads 13-15% low:
265wtq @ 2.5k
350wtq @ 3.0k
435wtq @ 3.5k

TopgunZ 11-06-2014 09:05 AM

1 Attachment(s)
Quote:

Originally Posted by KratikosG37 (Post 3023239)
Hey it's ok. Now we know you we're comparing a single turbo that spools at 4k v.s. Us twins that spool at 3.2k rmp. Should have caught it when you said 8k rmp shift point.

Car looks clean and the video was well put together. Takes balls to hit 170mph on open road(personally 120mhp in 5th is my shut down point)

None the less we we're on two different aspects of FI. Just take in mind you're hitting 300wtq at 4k rmps and twins usually hit 400+wtq at 4k rmps. Big different, but when my smaller turbos peak at 6.6kish yours is just beginning to open up.(example)

Thanks again for your input.

Well Im glad you at least edited your first response, but this is also full of false information.

Ill back up my reasons why with this. If you can post one up also, Id love to see it.

KratikosG37 11-06-2014 09:11 AM

Quote:

Originally Posted by TopgunZ (Post 3023668)
Well Im glad you at least edited your first response, but this is also full of false information.

Ill back up my reasons why with this. If you can post one up also, Id love to see it.

:iagree:

It was a (exmple) wasn't compaing my own car.

jwick 11-06-2014 09:20 AM

Quote:

Originally Posted by TopgunZ (Post 3023668)
Well Im glad you at least edited your first response, but this is also full of false information.

Ill back up my reasons why with this. If you can post one up also, Id love to see it.

Is this your dyno? If so, are you running the ball bearing or journal bearing?

FPenvy 11-06-2014 09:22 AM

i love this thread. so full of cock fighting and dick measuring over turbo size, spool speed, where the tq comes in.

next thing i'm waiting for is people comparing who's VTEC kicks in sooner.......

:wtf2:


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