Hi


looking at getting one this week, but wondered what spec do people use.


What Rpm does your power still pull? (i know this is not only down to cam)

 

Ive been using one for 4 years now

I make peak power at 6100 rpm

http://i2.photobucket.com/albums/y36/T28/205.jpg

 

Is your cam a Ava own spec or one of Newmans off the shelf item?

 

AVA one

 

I used the Newman 2.0l ZVH cam, an off the shelf cam and solid followers. It got me to 166.6 at almost 7000rpm.

S.

 

are u on 3.55 diff Simon?

 

Was suppose to be!
Thats what I asked the gearbox shop to fit!

Getrag six speed fitted now.

S.

 

i run a custom ava one and make peak power at 6k and only drop 10bhp by 6500(i have other restrictions stoppin me makin it higher) but its not just the peak power ive gained its all thru the rev range,that was comparing to my 195@wheels run on the piper t2.
andy r ran one too on his mega cvh build and was makin peak power at 7200rpm sure he had an 8k rev limit or there abouts
he's runnin 2 customs ones now in his zt i believe

 

Dan peak was at 7200rpm. From 7200-7600 the power dindnt drop.....after 7600 it then tailed off. Limiter was at 8400ish.

Jamie....just standard cams on the ZT build

 

knew you'd pop up to correct me

 

Impressive stuff.


Do any of you know what off the shelf cam is best for a std c/r 1.6, running about 220 bhp, with upto 7000 rpm?

 

christian major runs a newman cam, if 350bhp & 168 mph in a 1600cvh isnt enough proof than what is

 

how easy to live with are this newman cams? thinking of invsting in one with newman followers etc but it would be on a day to day basis
are they lumpy etc?- noisy?

 

Very good cam, i dont think its lumpy but it does sound abit like a 1.1 fiesta!!!!!!!!

 

Dan, you want something fairly wild on a 36 housing.

 

i spoke to David @ Newmans, and he said

FORC/276/409T

is best for me, but when i asked about the advantages and disadvantages of it, he said its all positive.

So i asked few questions, but he doesn't answer them, just skips them.

and got the impression either he doesn't care or know.

So, unless i speak to someone with that cam, or see some back to back test's against something else, i'm not going to make a decision.

 

u mean decision......

Dan - do u know the basics of cams on turbo engines, and what does what, solid vs hydraulic etc?

 

Yeah, now edited.


what do you mean by basic's?

i do know the difference of hydrolic/solid lifters,

 

not just the physical construction, but the effect they have, and the effect that duration has etc. Point is, as u have found out - they dont have a clue when ur on the phone - u need to spec it urself

 

I'm not to clue'd up on that part,


as i normally ask the cam people what they think/know will suit my engine spec, and what i want.

 

Dan, i'm with u on the back to back tests - nothing can beat them. I have my ideas as to what will work, but it's only theory. I will say that the "std" off the shelf newan cam is a good one.

 

Cheers Rick,


What cam do you use?

i'm gonna talk to Kent's about making a solid lifter kit for the RST, as i get
good discount.


As i asked Newmans, whats the good/bad points, and they said its better than a std or a Kent cam all the way thro the rev's, which is too good to be true.

 

i went fron a piper 285t2 cam to a newman and gained on mine all the way thru the rev range at same boost,actually think i run less in the mid range now than i did with the pipe but peak power is made at same boost,also its still makin good power at 6.5k where the piper didnt want to budge by 6k

piper



newman

 

i know they are better than any Hydrolic cam kit, and you Ava (and other lad's) have shown that.

But they must be parts of the rev range that is neglected for the rest..

But if Piper or Kent pulled their figure's out, and develop a solid lifter cam, then Newmans wouldn't have the market cornered like they have at the moment.


I've never heard of other cars running Newmans like the CVH.

 

Was your Piper cam measured afterwards to see if it was worn?

And did you/ava change anything at the same time?


I believe the rev issues on Kent and Pipers are due to too soft springs, causing valve bounce, (mine wouldn't rev past 6300 on the 36 cam, but would rev to 7000rpm on a different spec engine with a 35 cam kit)
And fitting double springs on hydrolic setup causes even worse wear.

 

it was not measured and was practically new,had done about 200 miles pl;us the 1k running in miles,there was a slight bent valve problem which meant the head had to come off and was offered to guinea pig the newman cam as ava were just testing them out at the time,im sure there was a fuel mod done along with the cam being fitted as id ran out of fuel at 195@wheels

 

Got the 'standard' newman cam in mine, just had me new engine mapped on an engine dyno and i don't mind sayin i was very impressed at how it made power all the way through the range! I didn't have steel rods so we had to cap it at 6,300rpm, but power was still climbing at that point. I haven't got the engine back in the car and running yet so i can't comment on how it drives on the road, but it certainly looks like it's gonna be good on paper! To be fair tho, the head had recieved some fairly extensive porting so the results might not be exactly the same in a standard car.

 

Shame it wasn't a true bk to bk test with no mod's.

Was the bent valve seating ok? as if yes, it wouldn't change the power unless it was sticking or not seating.






Whats your spec? would be good to see your dyno sheet.

 

I'll get the dyno sheets up asap, haven't got em with me at the mo!
Spec wise,
- Standard bottom end, freshly rebuilt with new pistons, rings, shells, standard rods with arp bolts etc.
- Heavily ported/polished head
- Newman cam with solid lifters
- T3, 0.48 housing, specced for 250bhp by turbo dynamics.
- Omex 600 management, with modified fuel rail and injectors

Made 245bhp peak power, runnin 1.4 bar boost at approx 6300rpm. Had i had rods i could have maxxed it out as the power wasn't actually tailing off at that point like i was expecting. The last engine dyno'd didn't make any power after 5,500rpm so we think the cam/solid lifters must have bin a contributing factor to the engine's willingness to rev!
[/quote]

 

Cheers, what dyno was that on?

 

Was at Norris designs, Simon looked the other way and let us slip a cvh on the dyno lol!! He also mapped the engine, will need live mappin when i get it back on the road to make sure it's as driveable as possible off boost, don't want a lag monster!!

 

 

Don't know if it's any help, but my XR3i turbo is running a Newman cam too and I'm pretty chuffed with it!
The spec:

Standard bottom-end with new pistons, shells, etc with ARP bolts
Standard head (bar the Newman cam)
Stage 2 T3 on standard manifold peaking @20psi, dropping to 16psi
Magnex 2.5" bore exhaust
GRS intercooler
VEMS management



Christian and Gary went through 3 different specs of Piper cam (best RR result was 180bhp) before giving up on them and slapped in the Newman one- something to do with high exhaust temps?

They said it could go further with more tweaks, but I ain't got no money!

 

is that on a RST bottom end or a xr3i bottom end?

 

will be running newmans version of the BD16 in my cossy......one day,if i don't sell up

 

Newmans haven't got any plus points in the yb cams,


As Kent's and pipers are more experienced, and there isn't issue's on the cossie setup like the CVH.


I run piper cams in my cossie.




Had a RST in for some work this weekend, and its had a piper T2 cam fitted a month or so ago. and about 300 miles.

And its fuc-ed, dont know if its the cams fault or if it weren't fitted correctly.

 

okaaaay

 

not sayiny they are worse, as will be on par.

just i haven't heard anything better about them.

 

oh right

 

It's a Fiesta RST lump (mine's a late EFi XR3i so it made the wiring and everything easier).