How much boost pressure can a built VQ37VHR withstand?

KratikosG37 · 11-05-2014, 07:44 PM

Quote:

Originally Posted by BBRSpeedWorks

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

jwick · 11-05-2014, 07:53 PM

Quote:

Originally Posted by KratikosG37

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

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, 07:54 PM

Quote:

Originally Posted by KratikosG37

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

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, 08:04 PM

Quote:

Originally Posted by jwick

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, 09:06 PM

Quote:

Originally Posted by KratikosG37

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

Quote:

Originally Posted by TerribleONE

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, 09:28 PM

Quote:

Originally Posted by KratikosG37

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, 10:05 AM

Quote:

Originally Posted by KratikosG37

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, 10:11 AM

Quote:

Originally Posted by TopgunZ

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.

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

jwick · 11-06-2014, 10:20 AM

Quote:

Originally Posted by TopgunZ

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, 10:22 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.......

jwick · 11-06-2014, 10:22 AM

Quote:

Originally Posted by FPenvy

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.......

NA boy

( Click to show/hide )

TopgunZ · 11-06-2014, 10:32 AM

Quote:

Originally Posted by FPenvy

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.......

Actually, I am just making sure the community if well informed of the capabilities of certain kits. I would hate to see some guy buy a GTM kit in fear that a single will be laggy and underperform. Forums are meant to be educational and not give people false information.

Jwick. That is my dyno. Actually one where I was running off spring pressure only. You can see this by the way my boost drops off really bad up top. The WG springs get hot and loosen up. This is why nobody should ever run off springs alone. After I figured out my MBC it held boost evenly across the range.

I got the ball bearing upgrade. I also have that 16* timing to help spool thanks to the E.

FPenvy · 11-06-2014, 10:37 AM

Quote:

Originally Posted by TopgunZ

Actually, I am just making sure the community if well informed of the capabilities of certain kits. I would hate to see some guy buy a GTM kit in fear that a single will be laggy and underperform. Forums are meant to be educational and not give people false information.

Jwick. That is my dyno. Actually one where I was running off spring pressure only. You can see this by the way my boost drops off really bad up top. The WG springs get hot and loosen up. This is why nobody should ever run off springs alone. After I figured out my MBC it held boost evenly across the range.

oh i got you i just felt like throing a honda joke in there. if you cant tell my job is quite boring some days and this forum provides entertainment along with the educational notes on turbo kits

personally i would never touch a GTM kit nor go with a single turbo.

i would either go with a TT kit from FI or AAM. shoot for about 500-550whp since i DD it in the warm months. also add a level10 upgraded 7AT thats capable of about 1000hp so i dont blow it up.

KratikosG37 · 11-06-2014, 10:41 AM

Quote:

Originally Posted by jwick

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

GT28RS.86

Quote:

Originally Posted by FPenvy

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.......

Quote:

Originally Posted by TopgunZ

Actually, I am just making sure the community if well informed of the capabilities of certain kits. I would hate to see some guy buy a GTM kit in fear that a single will be laggy and underperform. Forums are meant to be educational and not give people false information.

Jwick. That is my dyno. Actually one where I was running off spring pressure only. You can see this by the way my boost drops off really bad up top. The WG springs get hot and loosen up. This is why nobody should ever run off springs alone. After I figured out my MBC it held boost evenly across the range.

Thanks for the info mothergoose. Being well informed is the way to be, like i've said i'm the last to give adivce, but I wasn't wrong about powerband (just RMP).

In less you're running some cvic sized single turbo twins will always boost faster.

What size and turbo style you have?

TopgunZ · 11-06-2014, 10:43 AM

Quote:

Originally Posted by FPenvy

oh i got you i just felt like throing a honda joke in there. if you cant tell my job is quite boring some days and this forum provides entertainment along with the educational notes on turbo kits

personally i would never touch a GTM kit nor go with a single turbo.

i would either go with a TT kit from FI or AAM. shoot for about 500-550whp since i DD it in the warm months. also add a level10 upgraded 7AT thats capable of about 1000hp so i dont blow it up.

Ummm...And why is that? Did you look at the curve of that chart I posted with only 9lbs?

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