Post your dyno curve here

[db484bhpv8]

ChimpOnGas said:

The big boys appear to be making anything from 64 HP per litre to db484bhpv8's very impressive 71.69hp per litre without NoS.

Excellent, never realised my engine was that good really NA.
I suppose i am far too used to the nitrous. I would like to see another 20 or 30 lb/ft in the midrange for road use but i have to be happy with the way the car runs. And it does give me 27+ mpg on a run if i limit my top speed to 90ish.

[ChimpOnGas]

carsy said:

The heads do look really nicely ported i have to say.

Yours is producing good numbers Dave for a 4ltr. Are you sure the heads havent been tickled a bit. That Stealth cam will no doubt boost your peak power.

The heads are definitely standard TVR (later serp 4.0 litre fair) mate, which means their not really anything more than range Rover heads from what I understand?

Rob & I had a good close look at them when the Stealth cam went in, and he pronounced them to be standard heads.

I'm tempted by better heads for 'Ol Gasbag' but the blower makes them a bit pointless.

I think I'm better off putting my head money into an SC-Power kit.

What's interesting is the big capacity RV8s with lots of work only seem to make 2hp more per litre than our baby V8s?

The conclusion to me seems to be if the smaller capacity RV8s saw similar attention to the heads ect, they would actually deliver better power per litre.

Could this mean our little revy engines have the potential to be more efficient than the big boy engines?

Of course I'm just trying to find something positive to cling on to here

All that's going to be pretty irrelevant when say Peter's 5.5 litre monster roars past showing us what 100 extra horse power looks like in a 1060kg TVR.

These Chimaeras that make over 350hp must be totally bonkers

The efficiency point is interesting, but there's really no substitute for a bigger engine.

Well actually smaller one with a supercharger does all right too

Edited by ChimpOnGas on Thursday 31st October 18:05

[ChimpOnGas]

db484bhpv8 said:

Excellent, never realised my engine was that good really NA.
I suppose i am far too used to the nitrous. I would like to see another 20 or 30 lb/ft in the midrange for road use but i have to be happy with the way the car runs. And it does give me 27+ mpg on a run if i limit my top speed to 90ish.

Sorry Derek, I had to amend it mate.

Chilli is actually beating you by a massive 0.33 hp per litre

A wins a win though

[jojackson4]

Std ish 500

[carsy]

swanny71 said:

Mine is a 500 with a TVR Power Taraka Plus rebuild, specs here - http://www.tvrpower.co.uk/upgrades/50-litre-taraka...
Pre-cats removed

320 bhp and 355 torques

Edited by swanny71 on Thursday 31st October 11:25

That is a great torque curve. I`m assuming Powers 885 cam.

Any more with Powers 885 cam. Tvr Beaver

[Richard 858]

Here you go, standard 450, fully decatted & ACT induction hose & elbow but otherwise untouched, 68,000 miles (rebuilt at 55,000)

[A900ss]

Richard 858 said:

Here you go, standard 450, fully decatted & ACT induction hose & elbow but otherwise untouched, 68,000 miles (rebuilt at 55,000)

That's impressive. I do wonder what my 450 (recent rebuild, stealth cam, smooth elbow but that is all) is pushing out.

I will RR it when I get the time.

Edited by A900ss on Thursday 31st October 20:05

[A900ss]

NickOrangeTVR said:

4.0ltr pre-serp Super Charger (SC Power) running up to 10 boost, standard cam, Emerald ECU, still has main cat, Engineer1949 built it (see http://tvrengineer.co.uk/)

351 bhp 376 lbs

I think at would do me just fine......

What is the all in cost for something like this from a standard car? It's at least 2 years away but I do like to window shop.

[Richard 858]

A900ss said:

"I think at would do me just fine......

What is the all in cost for something like this from a standard car? It's at least 2 years away but I do like to window shop."

Ah Ha, this'll be an interesting answer !!!!!

Edited by Richard 858 on Thursday 31st October 20:19

Edited by Richard 858 on Thursday 31st October 20:20

Edited by Richard 858 on Thursday 31st October 20:21

[TV8]

This was my old car. 240 BHP and 270 lb. Much better fuelling and felt as quick at the top of the rev range when driving it hard. Day to day, the 360lb/ft of the new beast makes it feel a lot swifter!

[Richard 858]

Blimey Crikey, what gearbox & clutch are you using to deliver that sort of power to the back end & does the diff cope ok ?

[A900ss]

Hoofa said:

Long live the king!!!!

[A900ss]

Richard 858 said:

A900ss said:

"I think at would do me just fine......

What is the all in cost for something like this from a standard car? It's at least 2 years away but I do like to window shop."

Ah Ha, this'll be an interesting answer !!!!!

Edited by Richard 858 on Thursday 31st October 20:19

Edited by Richard 858 on Thursday 31st October 20:20

Edited by Richard 858 on Thursday 31st October 20:21

I'm not actually expecting an answer but ballparks would be nice for us poor 'unmodified' folk.

[Hoofa]

T5 quaifed box, quaife diff, jobs a good un, engine parts wildcat

Edited by Hoofa on Thursday 31st October 20:55

[Richard 858]

Karl, its just that I think this particular example is a complex subject regarding cost, but that's Nick's shout. I strongly suggest checking out Engineer1949's (John's) thread on the build. to say it's impressive is an understatement!

[Chilliman]

ChimpOnGas said:

db484bhpv8 said:

Excellent, never realised my engine was that good really NA.
I suppose i am far too used to the nitrous. I would like to see another 20 or 30 lb/ft in the midrange for road use but i have to be happy with the way the car runs. And it does give me 27+ mpg on a run if i limit my top speed to 90ish.

Sorry Derek, I had to amend it mate.

Chilli is actually beating you by a massive 0.33 hp per litre

A wins a win though

[db484bhpv8]

Chilliman said:

ChimpOnGas said:

db484bhpv8 said:

Excellent, never realised my engine was that good really NA.
I suppose i am far too used to the nitrous. I would like to see another 20 or 30 lb/ft in the midrange for road use but i have to be happy with the way the car runs. And it does give me 27+ mpg on a run if i limit my top speed to 90ish.

Sorry Derek, I had to amend it mate.

Chilli is actually beating you by a massive 0.33 hp per litre

A wins a win though

OK so it may take a bit of work and money to beat you on the bhp/litre thing.

But all i have to do to beat Hoofa is swap a jet

(till the bottle runs out) i know

[Chilliman]

db484bhpv8 said:

Chilliman said:

ChimpOnGas said:

db484bhpv8 said:

Excellent, never realised my engine was that good really NA.
I suppose i am far too used to the nitrous. I would like to see another 20 or 30 lb/ft in the midrange for road use but i have to be happy with the way the car runs. And it does give me 27+ mpg on a run if i limit my top speed to 90ish.

Sorry Derek, I had to amend it mate.

Chilli is actually beating you by a massive 0.33 hp per litre

A wins a win though

OK so it may take a bit of work and money to beat you on the bhp/litre thing.

But all i have to do to beat Hoofa is swap a jet

(till the bottle runs out) i know

Derek, this is really interesting, out of curiousity, whats your best quarter time NA?

Please tell me it's sub 12

[Chilliman]

ChimpOnGas said:

EDIT! Chilli comes in on top with a mighty 72.02hp per litre, making it the most efficient RV8 of the group so far

Can anyone beat Chilli?

ChimpOnGas, you clearly see things others don't Being a modest kind of guy I am not into the willy waving thing, and like to keep a low and unassuming profile

Seriously though, I would love to see a 400bhp NA motor turn up.... anyone???

ETA: All respect to Rob at V8Dev, If you want more power then Rob's the guy to speak to....

Edited by Chilliman on Thursday 31st October 21:59

[db484bhpv8]

Chilliman said:

Derek, this is really interesting, out of curiousity, whats your best quarter time NA?

Please tell me it's sub 12

Nope
12.41 @ 111
not bad considering only just over 300 lb/ft.
The Mickey Thompsons have to be worth a few tenths