Camshaft

[markh]

Anyone fitted a Kent H218K to a 4.0, if so were you pleased with the end result

Mark

[anonomouse]

Yes, I had one fitted to mine after the head gasket blew. It gives great torque, but it runs rough under 2000 rpm. This can be fixed with a re-chip or you can live with it.

If I knew then what I knew now I would have never done it.

Daniel

[manek]

What do you know now that's changed your mind?

[trefor]

My 4.0L's got a hybrid cam from Peninsula - I can't remember the model number, but apparently the profile is somewhere between the std cam and a 5.0L cam. Lot's of power above 3000rpm with no apparent loss of low end.

I've been told the 5.0L cam will fit ... it's got a higher profile but I'm not sure where the power gains will be on a 4.0L though.

Trefor/.

[anonomouse]

I know that..

Trying to drive up the high street smoothly in third gear, gently burbling along, doesn't work. You just lurch about like an idiot.

The alternative is to ROAR along loudly in second looking very Max Power.

>> Edited by anonomouse on Tuesday 9th April 13:16

[manek]

quote:
My 4.0L's got a hybrid cam from Peninsula - I can't remember the model number, but apparently the profile is somewhere between the std cam and a 5.0L cam. Lot's of power above 3000rpm with no apparent loss of low end.

I've been told the 5.0L cam will fit ... it's got a higher profile but I'm not sure where the power gains will be on a 4.0L though.

Trefor/.

Trefor

Can yours burble in third as well as roar in second, like the man said?

[swilly]

Head gasket went on my 4.0L last October. Took it to Team Proactive for replacement where they told me I had a 5.0L cam fitted.

As it is my first TVR I have nothing to compare it with but the mechanic said "it goes like a rocket"

Is a bit jumpy in 1st/2nd/3rd gears at idle revs but very insignificant compared to the i get.

>> Edited by swilly on Tuesday 9th April 15:50

[trefor]

quote:

quote:
My 4.0L's got a hybrid cam from Peninsula - I can't remember the model number, but apparently the profile is somewhere between the std cam and a 5.0L cam. Lot's of power above 3000rpm with no apparent loss of low end.

I've been told the 5.0L cam will fit ... it's got a higher profile but I'm not sure where the power gains will be on a 4.0L though.

Trefor/.

Trefor

Can yours burble in third as well as roar in second, like the man said?

It will do both.

Personally I prefer very slight application of the throttle in first, second or third. This makes it pop and gargle which is better than burbling.

Last time I had it serviced they commented on how smoothly it ran too.

T/.

[bazza2000]

Sounds Great Trefor. Do you have a number for Peninsular?

[trefor]

They advertise on here, or are linked in the oily pages.

Now this is where it gets tricky explaining how I obtained mine ... My camshaft needed replacing (worn lobes on exh 8) and nobody could supply a std cam for about a week. I helped the independent out because I was desperate to get the car on the road (track day the coming weekend). I found one in stock at TMS and they shipped it down. When the independent examined it he noticed it didn't look std. It came in a plain white cardboard box with no markings. There were markings stamped on the end of the cam. Anyway, he installed it and set the timing as best he could at the time. Since then it has been adjusted but basically that's how I got a non-std cam. I still didn't know what type it was until one day I called in to Peninsular for something en-route to Devon. I mentioned the cam and they said they supply TMS with all their cams and said it was a hybrid something or other. Sorry I can't remember anything more about it, it's definitely not an 'aggressive cam' though.

Trefor/.

[squirrelz]

'scuse me for being ignorant, but is it a single camshaft on the rover V8 then?

[richb]

Yes, centrally located in the V with pushrods up to the valves etc...

[manek]

Yup, it's a 50-year-old Buick design -- originally designed for boating use IIRC.