What Does Your 4.0 litre Chim Make?

[Chimpafrolic]

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

[Jon Brown]

What does it make - lots of noise

Sorry couldnt resist, at last power run 167 bhp which was shocking. Appears to be blocked cats (one down one to go).

[Chassis 33]

Mine made 245hp on Joo's rollers running hotwire (Castle Race Engines chip), bulleted bronze guides (but no other head work), trumpets shortened by 25mm and a Typhoon cam with Rhodes lifters.
Forget exact the torque values but from memory it peaked around 270lb ft and pulled around 250lbft for alot of the rev range, obviously dropping a bit as it reached the top end.

Regards
Iain

[Zippee]

My old Chim (sold 3 years ago so not sure how relevant to this) made 228bhp on SRRs rollers. My engine was totally standard barr cat-less manifolds (still had main cat) and had just over 50k on the clock.

[Andy chimaera]

mine made253bhp on the rolling road after having a stealth cam, carbon trumpets, induction kit and new air flow meter, hydrolic lifters and chip of course fitted, done at dulford earlier this year and it still shunts like a good un

[CHIMV8]

Last rolling road session, mine reached 220bhp on a totally standard set up

[Campbell]

Going a bit slow in the chimp cage....not enought bananas been passed out

Keep it real.....

[chedder]

Chedder

[Andy_mr2sc]

My standard (except pre cat removal) 4l makes 226bhp. 63k miles and well looked after!

I'd be interested to see dyno runs from people with filters/induction mods/trumpets to see if it's worth the outlay?

Andy.

[Chimpafrolic]

Come on boys, we can do better than this.

The Wedgies are mocking us.

Sadly I only have 233hp myself, but surely there must me some top performing 4.0 litre Chimps out there to beat the Wedge best of 255?

[Ribol]

Andy_mr2sc said:

My standard (except pre cat removal) 4l makes 226bhp. 63k miles and well looked after!

I'd be interested to see dyno runs from people with filters/induction mods/trumpets to see if it's worth the outlay?

Andy.

It would seem that if that 226bhp is accurate you are doing well as you are and I doubt any small gains would be worth the outlay.

[sgrimshaw]

Chimpafrolic said:

Come on boys, we can do better than this.

The Wedgies are mocking us.

Sadly I only have 233hp myself, but surely there must me some top performing 4.0 litre Chimps out there to beat the Wedge best of 255?

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

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

[Chimpafrolic]

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

[ads]

Last year at ROAR mine made 228bhp. Totally standard including Cats!
I'm fairly happy with that for a as it left the factory car.

[900T-R]

Didn't Garlick's ASOB example make 240.0 bhp at SRR?

[Andy chimaera]

Chimpafrolic said:

Come on boys, we can do better than this.

The Wedgies are mocking us.

Sadly I only have 233hp myself, but surely there must me some top performing 4.0 litre Chimps out there to beat the Wedge best of 255?

hey mine is close innit?

[Chimpafrolic]

Andy chimaera said:

hey mine is close innit?

True Andy it is close, but sadly no banana.

[Andy chimaera]

Chimpafrolic said:

True Andy it is close, but sadly no banana.

well dulford said they could squeeze 10 more hp or so from a more taylored map or something, give me 2 bananas and i may concider it!!!

[Chilliman]

This kinda supports my theory that peeps who buy Chimaera 400's are more interested in looks and noise (and perhaps posing) than BHP and performance

[Ribol]

Chilliman said:

This kinda supports my theory that peeps who buy Chimaera 400's are more interested in looks and noise (and perhaps posing) than BHP and performance

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