THE want for MORE POWER !!!!!!!!!! Best option????

[3024E]

If i was to acheive more power from my pre-cat, would i be better in fitting a 500 straight in, or do i go 4.0 and change the cam/stroke/pistons to make it 4.3 and fit BVH'S ???

This is not my field so i'd like some advice please.


I really dont want to sell her and go looking again, so thats not an option.....



Many thanks in advance.

Edited by 3024E on Wednesday 19th January 22:24

[clarkmagpie]

Can you get a Taraka conversion done to a precat?
That's maybe something to explore?

[hiltonig]

Just. Supercharge it , job done

[clive f]

the big question is how much do you want to spend?

[Devil's Advocate]

These manifolds looks like a bit of a bargain and I'm pretty sure they do indeed yield some good gains:

http://cgi.ebay.co.uk/TVR-Griffith-Chimaera-Penins...

[RichardD]

3024E said:

If i was to acheive more power from my pre-cat, would i be better in fitting a 500 straight in, ...

Do you know the bhp of the precat? The simplest option here would be changing to a 500 engine but really it'd be best to know where you will end up as a unhealthy 500 isn't better than a (very) healthy 400 and would give not as smooth (mid range torque surge) a delivery.

[Pum]

In your position I'd go for a good (like stage 3 or 4) 4.5 or so, with all the nice extras from a reputable engine builder. Possibly also supercharge, depending on power aspirations and budget limitations. Alternatively, I'd look into a Chevy LS conversion, but rumour has it these are more expensive than people who haven't done it think.

[yellowgriff]

Cheapest by far,, Throw nitros in it,,,should be some where around a grand, gas not too dear if used sparingly....

[spend]

A lot of the options people will throw at you involve the pre-serp vs serp conundrums... New/old front cover, crank length, swirl pot location....

If just wanting to bolt in a crank, there are 80mm cranks as used in the 4.5BV available, whether Dom still has pistons/rods to suit would be another matter? Well balanced 4.5 bottom end and nicely done UBV heads with suitable breathing is the most appealing if you wish to keep everything else standard I suppose?

[Alexdaredevilz]

I might sell my V8D stage 3 4.6 engine with all the bits for the right price,

[TV8]

hiltonig said:

Just. Supercharge it , job done

can you supercharge the pre-cat/pre-serp?

[Alan Kee]

TV8 said:

hiltonig said:

Just. Supercharge it , job done

can you supercharge the pre-cat/pre-serp?

Sure, all you need is to machine some suitable pulleys. Or turbocharge it.

depends how deep the OP's pockets are, what he hopes to achieve etc etc etc

Most important number though is the one with the pound sign in front of it. you won't get far with a few pounds for instance.

[Green Meanie]

Hi Andy

How is the old girl then,(the Griff I mean)

Ex Green Meanie

[Hoover.]

TVR Power do / or did a 4ltr upgrade to a 5ltr not sure of the power gains though.

[MPoxon]

The SC Power Superchargers are supposed to be particularly effective on the 4 litre cars.

http://www.sc-power.co.uk/pages/SC-Power-superchar...

[yellowgriff]

Cant believe anyone would pay 5/ 6 Grand for a super charge In a TVR,, Nitros is about a grand and same sort of power gain,,,

[3024E]

Green Meanie said:

Hi Andy

How is the old girl then,(the Griff I mean)

Ex Green Meanie

Fantastic Craig......Clocked up about 1000 miles this year, went to the friday night BNG lights run in it,will be going to Chatsworth hopefully.......

You well??????

[3024E]

RichardD said:

3024E said:

If i was to acheive more power from my pre-cat, would i be better in fitting a 500 straight in, ...

Do you know the bhp of the precat? The simplest option here would be changing to a 500 engine but really it'd be best to know where you will end up as a unhealthy 500 isn't better than a (very) healthy 400 and would give not as smooth (mid range torque surge) a delivery.

Its very healthy indeed, ive been out with a few of my TVR mates, who are VERY suprised at the performance, kept up well with a T350C,CERB AND A TUSCAN plus i was two up in my GRIFF,may be slightly over fueling. I think before i make my mind up i will get it rolling roaded, but nitros seems to be the way...............

As i said unsure, but i wanted some ideas and thanks to all you guys.....


3024E

[3024E]

Alexdaredevilz said:

I might sell my V8D stage 3 4.6 engine with all the bits for the right price,

What sort of price, dont foget mines an early pre cat so im running a LT77 box etc

[Ant.]

plenty of people put big power through the lt77, dont let that stop you.