How much boost pressure can a built VQ37VHR withstand?

BBRSpeedWorks · 11-05-2014, 06:24 PM

Quote:

Originally Posted by Chuck33079

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, 06:25 PM

Quote:

Originally Posted by KratikosG37

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, 06:29 PM

Quote:

Originally Posted by BBRSpeedWorks

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.

That's either being deliberately disingenuous, or you didn't grasp what the rest of us were discussing.

BBRSpeedWorks · 11-05-2014, 06:32 PM

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

BBRSpeedWorks · 11-05-2014, 06:36 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, 06:41 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, 06:44 PM

Quote:

Originally Posted by 1slow370

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.

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, 06:48 PM

Quote:

Originally Posted by 1slow370

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, 06:48 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, 06:50 PM

Quote:

Originally Posted by Chuck33079

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, 06:51 PM

That video showed something, all right.

1slow370 · 11-05-2014, 07:00 PM

Quote:

Originally Posted by Chuck33079

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, 07:18 PM

Quote:

Originally Posted by TerribleONE

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, 07:33 PM

Quote:

Originally Posted by BBRSpeedWorks

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, 07:39 PM

Quote:

Originally Posted by KratikosG37

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...

11-05-2014, 06:32 PM	#139 (permalink)
BBRSpeedWorks Premium Member Join Date: Dec 2013 Location: Ft. Stwart Posts: 366 Drives: 370z,350z,300z,talon Rep Power: 11	i mean how do you warm up your tires??? __________________ God'Z Gift.

11-05-2014, 06:36 PM	#140 (permalink)
BBRSpeedWorks Premium Member Join Date: Dec 2013 Location: Ft. Stwart Posts: 366 Drives: 370z,350z,300z,talon Rep Power: 11	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... __________________ God'Z Gift.

11-05-2014, 06:41 PM	#141 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	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 likes this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

11-05-2014, 06:48 PM	#144 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	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 likes this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

11-05-2014, 06:51 PM	#146 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	That video showed something, all right. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

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