What Does Your 4.0 litre Chim Make?

[900T-R]

Ribol said:

I suspect most people buying a TVR will have an interest in performance but a lot of the numbers being churned out are just that, numbers.

Two different cars on two different rolling roads means very little, add into that they may be measured on two different days weather wise and it means even less.

Take a car in, stick it on the RR, measure it, do some mods/changes/mapping etc and stick it back on, measure it again and that might actually be worth something.

Anything else is just pub talk, but entertaining nonetheless

This.

Would much rather have a well sorted boggo 400 on Intrax/Ohlins suspension and a set of DS2500s all round than a 450/500 on the corresponding OE items, anyway - likely to be faster in the real world, too.

[sgrimshaw]

Chimpafrolic said:

sgrimshaw said:

Nothing I've seen so far on their thread comes even close to my 400's output .........

if only you hadn't banned blowers .......

Oh go on, tell us anyway

Let's just say that had I been at the Griff Growl, a Chim 400 would have been the most powerful (bhp) car there ..... (not as much torgue as Macdeb's 450 though).

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

[v8 racing]

Chimpafrolic said:

Hi folks,

I have been running a post over in the Wedge enclosure trying to establish who has the most powerful normally aspirated 4.0 litre Rover V8 powered car.

http://www.pistonheads.com/xforums/topic.asp?h=0&a...

This has proved to be an excellent source for my favourite hobby "Wedge Bating"

After a lot of cheating, the best genuine 4.0 litre Wedge currently weighs in at 255hp.

MegaSkirts & other after market ECU's are fine but no laughing gas, blowers or 4.6 litre cars with a 4.0 plenum badge please.

So come on, lets show the Wedgies who's boss.


NB: Early 4.0 litre Grifters are also welcome

Sorry to dissapoint you dave, but the wedgies came with more powerfull engines from the factory than the chims or griffs!, the very early 390 wedges that where built by nck where fitted with big valve heads/high compresion and a lot of them where fitted with 234 cams, later changing to 214 cams, a totally un molested early 390 was making around 270, they didnt drive very nice so they started pulling back on cams etc...., i know of a few 270-280bhp 4.0 chims that i built but dont know if they are ph'ers.

[slideways]

v8 racing said:

Chimpafrolic said:

Hi folks,

I have been running a post over in the Wedge enclosure trying to establish who has the most powerful normally aspirated 4.0 litre Rover V8 powered car.

http://www.pistonheads.com/xforums/topic.asp?h=0&a...

This has proved to be an excellent source for my favourite hobby "Wedge Bating"

After a lot of cheating, the best genuine 4.0 litre Wedge currently weighs in at 255hp.

MegaSkirts & other after market ECU's are fine but no laughing gas, blowers or 4.6 litre cars with a 4.0 plenum badge please.

So come on, lets show the Wedgies who's boss.


NB: Early 4.0 litre Grifters are also welcome

Sorry to dissapoint you dave, but the wedgies came with more powerfull engines from the factory than the chims or griffs!, the very early 390 wedges that where built by nck where fitted with big valve heads/high compresion and a lot of them where fitted with 234 cams, later changing to 214 cams, a totally un molested early 390 was making around 270, they didnt drive very nice so they started pulling back on cams etc...., i know of a few 270-280bhp 4.0 chims that i built but dont know if they are ph'ers.

my 4ltr chim made 259bhp after a top end rebuild and fettle at V8D

[Andy_mr2sc]

Lets face it the wedges need more horse power than a Chim to make up for what they lack in looks!!
(Que 10 pages of abuse....!)

[slideways]

Andy_mr2sc said:

Lets face it the wedges need more horse power than a Chim to make up for what they lack in looks!!
(Que 10 pages of abuse....!)

Quick don a flame proof suit

[theironduke]

Mines a HC but no idea what it makes...would love to go to a RR to find out. Cant see it making the 275 book figure though

Edited by theironduke on Saturday 10th September 21:16

[Andy_mr2sc]

Slideways do you know what tweaks they did to get you up to 259?

Andy

[Chimpafrolic]

v8 racing said:

Sorry to dissapoint you dave, but the wedgies came with more powerfull engines from the factory than the chims or griffs!, the very early 390 wedges that where built by nck where fitted with big valve heads/high compresion and a lot of them where fitted with 234 cams, later changing to 214 cams, a totally un molested early 390 was making around 270, they didnt drive very nice so they started pulling back on cams etc...., i know of a few 270-280bhp 4.0 chims that i built but dont know if they are ph'ers.

Thanks Rob, some interesting facts here, so a 270-280bhp potential from a 4.0 litre RV8 is a proven.

I can see more spending with you is on the horizon.

My original post over in Wedge land did say I had a feeling they would win out.

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Lets face it they need a few extra ponies to pull their doors about, those bars inside make the Wedge doors weigh a ton.

TBH it was all just meant to be a bit of a laugh, I think most people got that & enjoyed it?

[Jammy Dodger]

Meanwhile Dave, we've been the butt of some abuse on the " saw this and thought of you lot" thread..... I figured the jungle drums would be rumbling but no ones gone ape.....everyone must be scratching their arses or jacking off, not that I like to stereotype. I nearly went bananas when I first saw it.... The chimp guys should stop monkeying around and answer back..

[slideways]

Andy_mr2sc said:

Slideways do you know what tweaks they did to get you up to 259?

Andy

yes!
stage 3 heads mc1 cam 72mm plenum and later an ACT smooth bore induction kit

[Andy_mr2sc]

slideways said:

yes!
stage 3 heads mc1 cam 72mm plenum and later an ACT smooth bore induction kit

Does it feel much quicker in real world situations?

[jmorgan]

slideways said:

Andy_mr2sc said:

Lets face it the wedges need more horse power than a Chim to make up for what they lack in looks!!
(Que 10 pages of abuse....!)

Quick don a flame proof suit

Nah, don't care.

[slideways]

Andy_mr2sc said:

slideways said:

yes!
stage 3 heads mc1 cam 72mm plenum and later an ACT smooth bore induction kit

Does it feel much quicker in real world situations?

it did for ten minuets but got used to it so have gone chasing more horses

[scotty_d]

My old 400 made 225bhp and 260 lb/ft with only breathing mods

My new Tvr made 349 bhp and 300 lb/ft as standard oh roll on the inlet tart up and re-map

[Andy_mr2sc]

slideways said:

t did for ten minuets but got used to it so have gone chasing more horses

That's what worries me. I'll end up spending ££££ on it, be bored very quickly then wished I'd have put the money towards a quicker car to start with!
It's still prettier than a wedge though......!

[slideways]

Andy_mr2sc said:

slideways said:

t did for ten minuets but got used to it so have gone chasing more horses

That's what worries me. I'll end up spending ££££ on it, be bored very quickly then wished I'd have put the money towards a quicker car to start with!
It's still prettier than a wedge though......!

Supercharge it using the bigger charger then if that gets boring bang a 4.5 lump in with said charger and adjust pulley to suit that should do it

[scotty_d]

slideways said:

Supercharge it using the bigger charger then if that gets boring bang a 4.5 lump in with said charger and adjust pulley to suit that should do it

Or sell up and buy a quicker car save ££££ in the long run.

[Chilliman]

scotty_d do you keep the cerb in a garage or a TMS

[scotty_d]

Chilliman said:

scotty_d do you keep the cerb in a garage or a TMS

In the TMS right now at 50 Meters baby sitting due to weather.

But the Cerb is in the garage waiting for me in 19 days