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

[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

[3024E]

Ant. said:

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

ANT,


If my memory serves me well, didnt they use the LT77 box on early 500's utpo about 1996??????


Are the LT77 box's the h/duty ones fitted to the Rover SD1 'Vitesse' or is this just a mith!!!

[3024E]

I'VE only ever gone for pre-cats and this is my second as you know, having never driven a 500 is there really that much difference in power??????

[3024E]

What did TVR power do to the Rover v8 3.5 or did they start with 4.0???? bore/stroke change pistons crank what????????? blueprinted????? can someone tell me please....



This is something i have never known.


My mate reacons by simply changing the crank and conrods, this can make it into 4.3 ????


If i buy a 4.0 block or 4.6 what do i do or get to obtain TVR power,i've even heard of vauxhall injectors etc is this a mith??

[3024E]

Thanks to everyone.............


With all your help i have really got my head round this topic now, ive learned all about strokes, bores, cranks, heads stages 2/3/4 etc gas flowing cams porting etc etc.........


I've budgeted on £4k to build a good engine, and also keep my original factory 4.0 precat engine....


Cheers again for all your help guys


Andy

[3024E]

Luckily, ive just found a rare 1994 'LSE' Range Rover 4275cc complete car with a chipped ECU for £600......

Std bore 94mm with 77mm stroke, might just have a play with it....

[3024E]

[quote=Pasco]
This is how i would Start if i had my time over again knowing what i know now !!!!

If i had a standard griff this is where i would start and with the benefit of hindsight the order i would do it in.

Junk the suspension and replace with Nitrons
Front springs 450lb rears 375lb
................................................................#### DONE ####

Bigger brake discs and four pot callipers.... i went to the extreme and went for 17" rims at the same time 330mm discs and AP Racing 4 pot callipers
........................................................ ### MASSIVE BILLET 4 POTS DONE ####

Then look at the Engine...........



Pasco


Some serious advice there Pasco, many many thanks.

P.S let me know how you end up with your engine ......

Edited by 3024E on Sunday 30th January 12:51

[3024E]

Green Meanie said:

Oh typical,all the hard work has been done for you Andy

Just the small job of the engine now!

Just knew I should have kept hold of it

G.M

I'M going to keep the original engine as is,,,,,,,,, and build another

Just been offered a 4.0 out of a chimp with 56k on the clock for £750..... good start i hope

Edited by 3024E on Sunday 30th January 21:32

[3024E]

Just bought an all singing SEAC 4.5BV.......




Happy days

[3024E]

YES CHRIS,

It was really local to me thats why i went for a look, my mate has just helped me do a basic strip down, and it is the real deal......

[3024E]

Not sure Ant, it came with a chipped 14cux

[3024E]

The chap i bought it from cost him £3k.....

He was selling up and his TVR had already gone, even the house was up for sale, it came complete with ecu and airflow meter. I got it for less than half he paid inc the engine stand.


So i brought it home and did a simple strip down and boy is it a good one, absolute no wear in the cylinders.

SPEC;

4.5 block stamped 1988/9 number 47A..... Also stamped TVR (4441cc)
Big Valve Head, fully gas flowed and ported
Steel crank
Omega forged pistons
ARP bolted
22LB balance flywheel
45mm trumpets
75mm plenum
TVR 435 cam
New lifters and 360 BHP clutch
Double valve springs
Oil cooler (which im going to sell)

[3024E]

Just found out what 'NCK' is stamped on my engine,,, Anyone other boffins already know?????

47A45 = (TVR 4.5)

[3024E]

V8FROG said:

what a nice engine!!!will really like to have one like that in my car!!what kind of power are u expecting from it???

Hopefully 320/340 bhp...

[3024E]

Quinny said:

X bolted too by the looks of it. Bit of a clean and freshen up, and that should make a very nice motor...

Don't go spoiling it with a silly cam, and trying to get the absolute max BHP....... A nice clean revving engine with plenty of GRUNT is what suits the Griffs best

Leaving it as is Quinny....


Just a full check over and a good clean with plenty of powder coating bits etc

[3024E]

Wotland said:

When you speak of steel crank it means Iceberg crank ? Or it is a special crank made by NCK ?

???? Not got that far yet, more internet reading required.....


Infact, it must be a special made crank to get the stroke ??

[3024E]

The engine number is the very best way to find out exactly what it is........