cam recomendation

[wongthecorrupter]

Any views or recomendations for a cam replacment in a 1995 chimaera 400 .The car is standard apart from sleeved pipes.Thanks

[roysum]

wongthecorrupter said:

Any views or recomendations for a cam replacment in a 1995 chimaera 400 .The car is standard apart from sleeved pipes.Thanks

I have been very pleased with the MC1. Installed it along with other mods so cannot be specific about any performance gains, but engine runs very well, smooth tick over etc.

Roy.

[MikeTVR]

I'll second the MC1. Much smoother than my original HC cam. I've never measured the power but it still feels great.
Mike

[macdeb]

Piper 285. Wasn't impressed by MC1.

Edited by macdeb on Tuesday 23 November 23:03

[roysum]

macdeb said:

Piper 285. Wasn't impressed by MC1.

Edited by macdeb on Tuesday 23 November 23:03

http://www.tvrmonster.co.uk/modscam.html

Quote...........
Piper 285 crap idle, poor drive ability, very good mid range, ok bhp, falls off the cam very quickly.

I'm no expert !!

[EggsBenedict]

do a search for cam or camshaft on the forum, there's a few threads. I'm changing mine soon and am going for the RC87. Not a recommendation because it's not in yet...

[macdeb]

roysum said:

macdeb said:

Piper 285. Wasn't impressed by MC1.

Edited by macdeb on Tuesday 23 November 23:03

http://www.tvrmonster.co.uk/modscam.html

Quote...........
Piper 285 crap idle, poor drive ability, very good mid range, ok bhp, falls off the cam very quickly.

I'm no expert !!

No, and neither am I. The guy asked for opinions, I gave my own experience that's all, not quoting someone elses words either!!

[roysum]

macdeb said:

roysum said:

macdeb said:

Piper 285. Wasn't impressed by MC1.

Edited by macdeb on Tuesday 23 November 23:03

http://www.tvrmonster.co.uk/modscam.html

Quote...........
Piper 285 crap idle, poor drive ability, very good mid range, ok bhp, falls off the cam very quickly.

I'm no expert !!

No, and neither am I. The guy asked for opinions, I gave my own experience that's all, not quoting someone elses words either!!

It certainly wasn't my intention to upset anyone by quoting the above. Sorry mate !

[SILICONE KID]

I was told the Piper 270 and 285 grinds are a bit old hat.I had the 285 on a modified MGB engine.Poor idle and nothing till 2500rpm then a sudden power surge.Remember different cams may cause problems with your fueling..Then you open a can of worms ..
http://www.tvrmonster.co.uk/modscam.html

Edited by SILICONE KID on Wednesday 24th November 17:54

[clive f]

have a chat with Paul at v8 tuner, he has a chim himself and very kmnowledgable on the subject of cams, cheaper than most places too.

[Barkychoc]

I bought a Real Steel DW252 'Viper Cyclone' cam thats listed as being designed for 3.9 Hotwire injection engines.

I needed a rebore and got Rob Robertson to sort it for me and to assemble the bottom end & cam / timing chain.

He looked at the cam and told me to send it back - he said its too tame for a TVR and told me to order the Real Steel DW268 'Stump Puller' cam.
With a name like this I would never have ordered it - it sounds like a 4x4 cam - but its awesome and the engine is loosening up now and just getting better and better

Don't be put off by the name - rev pickup is awesome right up the scale.

http://www.realsteel.co.uk/section1.pdf

Rob if you're reading this would you normally recommend this cam or was it because I'd already ordered one from Real Steel and had to exchange it for something else from them?

[macdeb]

roysum said:

macdeb said:

roysum said:

macdeb said:

Piper 285. Wasn't impressed by MC1.

Edited by macdeb on Tuesday 23 November 23:03

http://www.tvrmonster.co.uk/modscam.html

Quote...........
Piper 285 crap idle, poor drive ability, very good mid range, ok bhp, falls off the cam very quickly.

I'm no expert !!

No, and neither am I. The guy asked for opinions, I gave my own experience that's all, not quoting someone elses words either!!

It certainly wasn't my intention to upset anyone by quoting the above. Sorry mate !

Cool, me neither
Just that I've had both and for what I wanted from the car, I prefer the 285.

[wongthecorrupter]

thanks ,not sure what to do

[blitzracing]

The Piper 270 and 285 where designed to bolt on top of stock valve springs (as in Range Rover- not TVR) so the lift is somewhat limited compared to the full cam kits with different springs you can get.

[wongthecorrupter]

Quinny said:

wongthecorrupter said:

thanks ,not sure what to do

Haha welcome to the cam club.....


Now despite my silly comment above...... The best advice I can give, is talk to Rob at V8D........ Not Ray or Shaun, nice chaps that they are... You want Rob...

Tell him exactly what you want from the car.....BUT.. Be honest..... All cams are a compromise. The trick is to get the best compromise for your style of driving and for the main use of your car

We would all love a cam that gave a perfect tickover, and monster power at the top end, and an extra 10 mpg....

The reallity is you can't have one

cheers will do

[TVR Beaver]

The question is.. do you like the engine profile the way it is now...
If your wanting more power over the range, may be the cam is the wrong thing to change to give you this...
If your wanting to change the way your engine dilivers it's power and at what RPM it delivers it, then the cam is the thing that controls this....
But getting another say 10 BHP on the top end... may loose you a lot on the bottom end torque and introduce shunting (this is just a for-instance)..
So think long and hard about what you want.. do you want it to drive nice in towns.. at 30 / 40 mph.. or are you after a balls out race cam that will be a pig under 40 mph... If your anything like me, 80% of what I do is around town so to get a cam thats top end, no torque and shunty would be a nighmare...
Just be honest with yourself.. as said above we'd all like it all.. but you can't have everything thats for sure...
Also as said before, talk to Rob... he knows his stuff and will give you good advice.. .he'll also point you in the right direction if he has nothing to offer himself..

[Alexdaredevilz]

Im just about to buy a new cam for mine, and ive decided im going with Viper Typhoon,
What im trying to work out is, are the Rhoads Bleed-Down Lifters worth a toss? standard followers are £50 ish an these are £110 ish would the money be well spent?
Also can some one recommend me a timing chain with out breaking the bank

Thanks

Alex

[dog man]

This is almost quite an exciting subject cam replacement. I think I actually look forward to the day I discover I need a new one so I get to explore all these cool choices!

[Pupp]

Alexdaredevilz said:

Im just about to buy a new cam for mine, and ive decided im going with Viper Typhoon,
What im trying to work out is, are the Rhoads Bleed-Down Lifters worth a toss? standard followers are £50 ish an these are £110 ish would the money be well spent?
Also can some one recommend me a timing chain with out breaking the bank

Thanks

Alex

I'd try and have a listen to an engine with those lifters fitted before you commit... they are pretty clattery. Not familiar with the Typhoon, why do you think it will need bleed downs?

The JP Billet twin-row chain/gear set (Part 5984) is a good multi-key set if you need to dial the cam in (not a vernier set but nearly as versatile). May need the front cover slightly relieving on the inner casting near the dizzy drive.

ETA - chain kit from V8D

Edited by Pupp on Thursday 25th November 20:47

[SILICONE KID]

Will your 90`s 14CUX compensate for massive fueling changes ?you may need a 400 quid Tornado chip, guess map or the worse case senario a full rolling road remap up to 1k...or you could go the bodge way and get a adjustable 1:1 Malsappi fuel regulator..I have been down this road and if i had my time again a replacment standard TVR factory cam would be fitted..i bet if you get it on the rollers after the new cam the fueling would be all over the place.