3.5 Litre V6.....

[Tim]

Should one happen to stumble across a low mileage Ex Megane Trophy 3.5 litre V6 engine would it be possible to fit it into the back of a Clio V6.......what would be required.......running gear etc.......

Maybe Mike or Tim could chime in with some of their thoughts...

 

[® Andy]

Didn't the Clio Trophy racers have 3 litre engines (putting out something like 280BHP)?

 

[DennisV6]

Yeah I thought the Same andy, its the eurocup megane trophy that has the 3.5 litre engine.

 

[Tim]

Talking about the Euro Megane Trophy's guys.....they are 3.5....

 

[DennisV6]

I believe its a Renault Velsatis engine, the same as used in the Nissan 350Z IIRC but if im wrong I do apologise.

Not sure if it would fit tho.

 

[Tim]

Anything is possible thats why I want the tech heads to chime in....they usually have the last word on these things!

 

[DennisV6]

Yeah when it comes to the major mods they are the fountains of knowledge, from seats to engines they know. :wink:

 

[Mike T]

It would fit but all systems would neeed custom making to make it work.

Far easier and cheaper to stroke a renault engine to 3.4 litres via Huger parts.

If you want 500 bhp its just twin turbos on a low comp 3.0 at 1.25 bar - still cheaper and a lot quicker at 500lbft torque

 

[Tim]

What would the stock engine give Mike? I believe the stock vel satis unit is 245BHP which seems low considering the 255 is just that from a 3 litre.......the eoro megnae trophies give out 330 IIRC?

 

[Mike T]

On tbs about 110+bhp per litre - with cats

A good performance is 100bhp per litre which would be an engine in a strong road/race tune.

The torque figures are the ones to watch - not the headline bhp

 

[k1ano]

The V6 is quite a short stroke I believe (under square) - I guess this is why the torque is quite low for a 3 litre but the flip side is that it revs very freely.

I would be happy with 100 bhp per litre n/a but definately not forced induction

Mike, I heard about your TT plans for a 500hp car - I will definately keep an eye on this as you reveal more info.

I was reading an article the other day about compound charging - caterpiller and cummins do a few implementations with their diesal engines. Did you consider this ? Basically it is using a supercharger feeding the turbo it can also be done using 1 small turbo feeding a big one.

Martin

 

[John V6]

Cat engines and Cummings are far larger than 3 litre and you can do far more.

Also they have to guarantee the engines

 

[TRW1]

Mike's will be 400bhp, 500lbs/ft from 2500rpm to 6500rpm.
Supercharging combined with twin turbos was considered but with 2 small turbos and figures as described, s/charger is not going to add anything.

 

[Mike T]

Ahem - 470bhp with 500lbft+

Tims right, charger just adds inertia to the engine and no additional boost is required to make the above figures.
The secret is Turbo selection and Motec and mapping. Aside from a strong engine with Turbo cams.

I'm only doing it to look younger - I believe it'll tighten the skin in race mode with launch control active.

Mike

 

[TRW1]

A face lift is still cheaper!

 

[Mike T]

but you don't get to giggle at Evos reversing away at the lights!!

 

[scotty6r4]

ALL THAT POWER WHOT ABOUT DOWN FORCE :lol:

 

[TRW1]

With that new rear wing Mike has he'll need all that power just to keep up with the rest of us!!

 

[Mike T]

But at least I'll have a table for lunch when I arrive!

 

[TRW1]

picnic for 15?