CVH/ZVH rev limits
 

I am wondering where you all have set your rev limits?

Also who has pulled a rocker stud out of the head and what revs?

Regards,
Simon.

Re: CVH/ZVH rev limits
 

i think mine is 6800 pulled a rocker stud at 6600rpm but i think this was due to the newman solid lifter locknut coming loose giving me no clearance.

but saying that my engine peak power at 6000rpm so in any case i am just over reving it with no gain, i need to drop my final drive to either a 3.5 or 3.3 my current 3.82 does'nt suit my engine.

Mine is 7300 but as I run a plain bearing turbo with cutback wheels (laggy)my turbo is delivaring power from 4200 upwards, so I use the revs to stop it dropping out of the power band between up shifts.
Simon.

Simon...when does the car stop making power?

bassboy

Current set up is tailing off at 6900.

Simon.

thats very impressive!! most ZVH's dont seem to want to rev past 6k...any idea why you think that is?

bassboy

I have my theries(spelling?) but mine easly revs to the 7300 rev limit in the first 4 gears I just have to get another 300 revs to reach it in 5th. I have nos but have not used it yet!

Remember I have a 8.8:1 CR
The newman cam spec is for big revs (new profile coming shortly)
The inlet manifold can cope with high gas speeds
Sound bottom end

That is just a few points.

Simon.

limiter @ 8400rpm on the old cvh, with no rocker stud issues.

Thats very impressive Andy, what amount of valve lift were you running?
Is the spec of your old engine listed somewhere?
Simon.

Unsure of the lift, the power peaked high aided by a Newman cam, short Throttleboddies(Bike) on inlet side & Long(equal lengthed)manifold on the exit.

hth

Andy, did u have a custom plenum madefor the tb's?

Bloody hell


:top:

Yup Rick the Inlet(Plenum) was needed in order for the ITB's to be used. The design has been revised again for the ZT Build.

any pics???

yeah any pics??? :top:

Sorry no pics of the new one lads! Im sure there's old pics floating about of the last one though!

theres your old set up mate,totally different now but :D

https://img.photobucket.com/albums/v...RBO/andyr2.jpg
https://img.photobucket.com/albums/v...URBO/andyr.jpg

I love that engine bay :cool: :cool:

Cant wait to see the Zetec T conversion :eek:

correct me if im wrong but are these the pics u need of the your zetec T conversion..... :top:
https://img152.imageshack.us/img152/...enum002gd8.jpg
https://img214.imageshack.us/img214/...enum001rr9.jpg

:cry: :cry: :cry: :cry: What can I say, YUP thats mine as of a few weeks back.

Call the cops my cars been pap'ed :cry: ;) :cool:

we want more pics!! :top:


i have seen it al before but think other people need to see it ;)

:top: :top: AVA Top guys :clap:

my rocker came out at 6500 the rev limit on the old ecu. what a chunt it was

Did you check your valve spring clearance?
whats your spec?


i used to have issue's on one of my old kent35 cam, i used to rev to just under 7000, and it broke a few rockers at different stages.
But never done it on my 1st kent 35 cam setup.

But i checked everything, and clearance's were fine.