Forced Induction Superchargers | Turbochargers | Intercoolers

Small external size single turbo?

Old 08-30-2012, 01:57 AM
  #1  
Teching In
Thread Starter
 
lysergic's Avatar
 
Join Date: Feb 2009
Location: Western Australia
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts

Default Small external size single turbo?

Hey guys,

Can anyone recommend some turbo models to look at to suit a 6L with minimal space under the hood?

I know the GT4088 has been used, but is there anything that will flow better but not be the size of a Gt42.

The car is a stalled a4 with a cam.

Another question i have is, will the car drive different offboost to what it does now as an NA? Or do you lose power until its in boost?

I dont have the luxury of room in front of the motor where most people fit big singles so it will need to be off to one side
Old 08-30-2012, 04:27 AM
  #2  
TECH Senior Member
iTrader: (18)
 
itsslow98's Avatar
 
Join Date: Apr 2006
Location: Maryland
Posts: 6,768
Likes: 0
Received 4 Likes on 4 Posts

Default

Turbonetics has a line of turbos for what you need. They call it their hurricane series. I run the 7668 on my car with no complaints.

http://www.turboneticsinc.com/turboc...-turbochargers
Old 08-30-2012, 04:51 AM
  #3  
9 Second Club
 
stevieturbo's Avatar
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 13,616
Received 178 Likes on 154 Posts

Default

Originally Posted by lysergic
Hey guys,

Can anyone recommend some turbo models to look at to suit a 6L with minimal space under the hood?

I know the GT4088 has been used, but is there anything that will flow better but not be the size of a Gt42.

The car is a stalled a4 with a cam.

Another question i have is, will the car drive different offboost to what it does now as an NA? Or do you lose power until its in boost?

I dont have the luxury of room in front of the motor where most people fit big singles so it will need to be off to one side
You need to decide on what sort of power you want, spool etc, then decide what is a suitable turbo.

As for driving, it should drive no different than it does now. It may feel more sluggish off boost, but that's only because of the larger difference in power between on and off boost.
But it will make pretty much the same low end as it did before.
Old 08-30-2012, 04:53 AM
  #4  
Teching In
Thread Starter
 
lysergic's Avatar
 
Join Date: Feb 2009
Location: Western Australia
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts

Default

Thanks, do you have any photos of your engine bay showing the turbo?
Old 08-30-2012, 04:57 AM
  #5  
Teching In
Thread Starter
 
lysergic's Avatar
 
Join Date: Feb 2009
Location: Western Australia
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts

Default

600rwhp would be enough. (that is never the case but gotta start somewhere )

Spool shouldnt be an issue with a high stall and a turbo of this size i wouldnt have thought? The car is just a weekend warrior with a semi focus on drags but nothing crazy.

Originally Posted by stevieturbo
You need to decide on what sort of power you want, spool etc, then decide what is a suitable turbo.

As for driving, it should drive no different than it does now. It may feel more sluggish off boost, but that's only because of the larger difference in power between on and off boost.
But it will make pretty much the same low end as it did before.
Old 08-30-2012, 05:12 AM
  #6  
9 Second Club
 
stevieturbo's Avatar
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 13,616
Received 178 Likes on 154 Posts

Default

Mine isnt turbocharged. There isnt a lot of point fitting a huge turbo if you only want 600hp though. Although 600rwhp AusHP isnt always the same as USHP. You might want to target 800 in the US :p

But as you also say, some modern big turbos can actually spool very well.

A lot of guys have good luck with the 88mm sized units and it would also leave you room to grow at a later date. Even then there is a huge variety of brands and different specs within that size range.
I'm sure some of the more experienced guys will chime in soon
Old 08-30-2012, 05:15 AM
  #7  
9 Second Club
 
stevieturbo's Avatar
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 13,616
Received 178 Likes on 154 Posts

Default

Here is an Aussie setup that seems to be working well.

https://ls1tech.com/forums/forced-in...rbo-build.html
Old 08-30-2012, 08:15 AM
  #8  
8 Second Club
iTrader: (5)
 
rotary1307cc's Avatar
 
Join Date: Jan 2007
Posts: 2,790
Likes: 0
Received 120 Likes on 89 Posts

Default

smallest physical setup with some turbine will be the new Tnetics tc with their new turbine. dont think it is out yet, not sure though

76gts is not much bigger physically
Old 08-30-2012, 08:59 AM
  #9  
LS1TECH Sponsor
iTrader: (3)
 
DrTurbo's Avatar
 
Join Date: Mar 2006
Posts: 3,966
Likes: 0
Received 2 Likes on 2 Posts
Default

TC7675 will be your answer.
Old 08-31-2012, 04:20 AM
  #10  
Teching In
Thread Starter
 
lysergic's Avatar
 
Join Date: Feb 2009
Location: Western Australia
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts

Default

Thanks, is that the same as the hurricane 7668? Is the 7675 on your website available to purchase?

Originally Posted by DrTurbo
TC7675 will be your answer.
Old 08-31-2012, 05:43 AM
  #11  
TECH Regular
iTrader: (12)
 
TurboS10's Avatar
 
Join Date: May 2010
Location: Waxahachie, Tx
Posts: 445
Likes: 0
Received 0 Likes on 0 Posts
Default

2nd pair of numbers 7668, 7675. 68 = 68 mm turbine outlet OD 75 = 75 mm turbine outlet OD. You'll want a 75mm turbine minimum for a 6.0l single with 1.15AR or bigger if available.
Old 09-08-2012, 01:28 AM
  #12  
Teching In
Thread Starter
 
lysergic's Avatar
 
Join Date: Feb 2009
Location: Western Australia
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts

Default

Can anyone help track down this turbo? I cant find anything on a tc7675. I know there is one that size from precision but not turbonetics that i can see. They all have 68mm turbine?

I am having no luck getting in touch with drturbo on where to buy the tc7675


Originally Posted by DrTurbo
TC7675 will be your answer.
Old 09-08-2012, 04:01 AM
  #13  
TECH Regular
iTrader: (12)
 
TurboS10's Avatar
 
Join Date: May 2010
Location: Waxahachie, Tx
Posts: 445
Likes: 0
Received 0 Likes on 0 Posts
Default

It's custom that's why. Just use the email link at ForcedInductions.com
You'd be looking at the T76 S trim basically with a different compressor housing.

TC compressor housing = 4" in & 2.5" out.
H cover (aka GTS, HPSH) = 4" in & 3" out.
Old 09-08-2012, 04:09 AM
  #14  
Teching In
Thread Starter
 
lysergic's Avatar
 
Join Date: Feb 2009
Location: Western Australia
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts

Default

Thankyou

Originally Posted by TurboS10
It's custom that's why. Just use the email link at ForcedInductions.com
You'd be looking at the T76 S trim basically with a different compressor housing.

TC compressor housing = 4" in & 2.5" out.
H cover (aka GTS, HPSH) = 4" in & 3" out.
Old 09-08-2012, 11:13 AM
  #15  
LS1TECH Sponsor
iTrader: (3)
 
DrTurbo's Avatar
 
Join Date: Mar 2006
Posts: 3,966
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by lysergic
Thankyou
The TC7675 should be available shortly. We are waiting on the turbine housings to be cut and then they are ready to go. We will have a GP on them.
Old 09-11-2012, 07:21 AM
  #16  
Teching In
Thread Starter
 
lysergic's Avatar
 
Join Date: Feb 2009
Location: Western Australia
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by DrTurbo
The TC7675 should be available shortly. We are waiting on the turbine housings to be cut and then they are ready to go. We will have a GP on them.
Do you have a rough estimate on how far off these are? Will help me decide on what to do


Thread Tools
Search this Thread
Quick Reply: Small external size single turbo?



All times are GMT -5. The time now is 03:48 AM.