TVS2650 for LS engines

[anonymous-user]

I would be in the market for one of these: http://www.lsxperformanceparts.com.au/harrop-tvs26... .Just need to find somebody to fit it....and a new bonnet!

[stevieturbo]

It ain't cheap !

Unless you could get a good return on your old setup

[anonymous-user]

stevieturbo said:

It ain't cheap !

Unless you could get a good return on your old setup

Yes, especially when you add labour. A pair of turbos would possibly be cheaper. No fabrication required though.

[stevieturbo]

wormus said:

Yes, especially when you add labour. A pair of turbos would possibly be cheaper. No fabrication required though.

A pair of turbos will NEVER drive or feel like one of those blowers though, so depends what your end goals are.

[stevieturbo]

With the likes of this...surely even if you had to change to Gen5 accessories, it'd still be cheaper than the 2650 ?

https://whipplesuperchargers.com/index.php?dispatc...

[anonymous-user]

Problem is the Whipple is too big to fit under the bonnet of a Monaro, I suspect the 2650 is too. I was hoping Magnusson would come up with a Heartbeat style version but I suspect they are now focussing on the LT4 instead.

[HappyMidget]

lsxpp said:

18 percent less input power required when compared to competitors 2.9L design

Well yes, but the 2.9L has internal compression in the screws providing pre-compressed air into the inlet manifold, rather than just using the manifold to compress the air.

Wonder if that comparison was run in free air or actually on an engine requiring the harrop with backpressure....

Anyways, if you are going to cut the bonnet, the best bet would be the 4.5L front fed Whipple they announced last year (My one day plan...)

[stevieturbo]

Ultimately they can make all the claims they want....it's what makes it to the back tyres, and the road what really matters.

And then which can do it the most reliably....and of course is most practical actually on the road or track.

[HappyMidget]

stevieturbo said:

Ultimately they can make all the claims they want....it's what makes it to the back tyres, and the road what really matters.

And then which can do it the most reliably....and of course is most practical actually on the road or track.

Yeah, I just wish all this marketing guff was better restricted as invariably someone will fall for it. Lies, damn lies, statistics and marketing.

[anonymous-user]

That Whipple is also old tech and not massively efficient compared to the newer TVS units coming from GM. The little 1.7 litre on the LT4 was designed to fit under the hood of the Corvette and sits right in the Vee. It uses longer 4-lobe rotors than the LSA or LS9 with more twist so has a broader spread of torque. Still flows enough air out of the box for 650hp though which is impressive.

I think the 2650, packaged in the same way would be phenomenal.

This sort of sits between the two but only for LT4 intake: https://whipplesuperchargers.com/index.php?dispatc...

Edited by anonymous-user on Tuesday 17th October 13:38

[HappyMidget]

But TVS are still only PD with no internal compression compared to the Twin-Screw design. I wanna go reverse cowl with this bad boy!

http://www.dragzine.com/features/sema-coverage/sem...

[anonymous-user]

HappyMidget said:

But TVS are still only PD with no internal compression compared to the Twin-Screw design. I wanna go reverse cowl with this bad boy!

http://www.dragzine.com/features/sema-coverage/sem...

Technically both are PD blowers, just different designs. From an efficiency perspective, there’s nothing wrong with the TVS and it continues to be the choice of compressor for OE manufacturers mainly due to its low, off boost power consumption, not sure anyone uses twin screw though.

[stevieturbo]

wormus said:

Technically both are PD blowers, just different designs. From an efficiency perspective, there’s nothing wrong with the TVS and it continues to be the choice of compressor for OE manufacturers mainly due to its low, off boost power consumption, not sure anyone uses twin screw though.

Or more importantly..lower cost.

Although likes of Mercedes use a twin screw ?

[300bhp/ton]

stevieturbo said:

wormus said:

Technically both are PD blowers, just different designs. From an efficiency perspective, there’s nothing wrong with the TVS and it continues to be the choice of compressor for OE manufacturers mainly due to its low, off boost power consumption, not sure anyone uses twin screw though.

Or more importantly..lower cost.

Although likes of Mercedes use a twin screw ?

Didn’t the Ford GT use a twin screw too?

[robbyd]

Think the Saleen did too.

[HappyMidget]

The Hellcat also uses twin screw. Nearly all modern superchargers now use bypass valves for nearly 0% consumption off boost anyway, so that negates that argument

[anonymous-user]

So low volume specials and one-offs use modular twin screws whilst volume manufacturers like GM, Audi and Jaguar/Landrover invest in TVS units of their own design.

Mercedes did use twin screws but I don’t think they supercharge cars anymore.

[Brad_Wil]

I've heard there might be a CV8 up for sale...one with a 6.6L forged motor and a 3.3L Whipple...bonnet beautifully sculptured to fit over the charger.

[leigh1050]

Brad_Wil said:

I've heard there might be a CV8 up for sale...one with a 6.6L forged motor and a 3.3L Whipple...bonnet beautifully sculptured to fit over the charger.

Are you selling already?
Are you getting anything interesting?
Auto r8?

[Brad_Wil]

leigh1050 said:

Brad_Wil said:

I've heard there might be a CV8 up for sale...one with a 6.6L forged motor and a 3.3L Whipple...bonnet beautifully sculptured to fit over the charger.

Are you selling already?
Are you getting anything interesting?
Auto r8?

Want to do track days...not sure the monaro is the best instrument for that. I was strongly advised that it would not benefit me in anyway to have 2 "toys" standing in the back yard. So while I'm still able, I'm going to do track days. When I'm less able, I'll be moving back to an auto R8!