piper 285s,

24th March 2009, 23:42

hi guys, am lookin at gettin the piper 285 cams 4 vts, or the respective equivalent (sugestions).
i have piper270s at the moment without a map and its an ok up.
how ever i wanna take it a bit further,
if i go for the wilder cam, wat else needs changing, ie lifters followers(solid or not, not sure),springs
would i need to get bigger injectors.
i know a standalone ecu would be good, but for now want to just remap standard ecu, and take the revs to 8, 8.2, to cater for the rangeof the cam.
and anyone know where can get ecu mapped. dont mind travelling.

24th March 2009, 23:46

piper cams are expensive, which is why people mostly use catcam 708s in the TU engine.

You dont need solid lifters, most solid lift cams are so wild you need forged pistons etc....

8-8.2k is a rev limit thats not needed imo on mildish cams, even my 803s peak power is below 8k.

24th March 2009, 23:48

803s, there more like the 285s am i rite?

24th March 2009, 23:54

Quote:

Originally Posted by adzvtr

803s, there more like the 285s am i rite?

803s are solid grind, from memory the 285s are hydro grind and not quite as wild as 285. *approx 285*

They seem to make similar power to 708s with most people

24th March 2009, 23:59

Piper Part Number SAXBP285H
Application ULTIMATE ROAD
Power Band 3000-7500
Power Increase 20 BHP
Duration Inl 264 deg
Duration Exh 260 deg
Valve Lift Inl 0.396" (10.05mm)
Valve Lift Exh 0.38" (9.65mm)
Timing 22 - 62 & 64 - 16
Full Lift Inl ATDC 110 deg
Full Lift Inl BTDC 114 deg
Lift @ TDC Inl 0.058" (1.47mm)
Lift @ TDC Exh 0.016" (0.40mm)
Valve Clearance HYDRAULIC

803s are ALOT LOT wilder than that tbh!

25th March 2009, 00:43

catcams 803s are wilder then, so can they be run without tbs,

25th March 2009, 00:49

Quote:

Originally Posted by adzvtr

catcams 803s are wilder then, so can they be run without tbs,

you need solid lifters, forged pistons, and id deffinately say TBs if you want any form of idle.

708s/285s/newmans ph3 iirc are really as wild as you can go before spending big money.

25th March 2009, 01:16

708s seem better for money, probs gunna look into them, wanna do it right the first time, would it be best to change springs. is it good idea to up the fuel injectors,(already had port and polish, headgasket) would it be worth raising the revs.

25th March 2009, 01:19

the rev limit will be set when you get the ecu remapped.

standard rev limit for 708s seems to be 7800 iirc as peak is around 7500 on these cams.

depends how old your springs are as to if they need a change imo.

Standard injectors should be perfectly fine aswell, most people seem to be using them ok. Bigger injectors doesnt mean better power in all cases

25th March 2009, 01:28

dont think springs have bin changed from new, probs best to get new,stronger maybe just for piece of mind, will most places remap standard ecu or is there only select places.

25th March 2009, 01:30

quite a few specialists can do it tbh.

25th March 2009, 01:34

cool, going to look into it, cheers for the advise, its bin a big help,think 708s are lookin like the ones. wat gains would i hope to see, 15,20 bhp maybe, with map.

25th March 2009, 01:36

depending on rollers 150-155 is the average benchmark. Some will obviously read a bit higher aswell.

25th March 2009, 01:41

thats pretty respectable, and around what im aiming for, will 1500 be enough as thats what i have to play with.

25th March 2009, 01:43

see if you can get the cams second hand, or in a group buy (think 106 owners might be doing one)

then if you can fit the cams yourself you should do it with £££ to spare easily.

25th March 2009, 01:51

thats an idea. there about 500,600 new arent they,not sure about fitting myself, the timing wouldn be the same would it.

25th March 2009, 01:54

many people with spanner skills fit cams themselves, OE cam sprockets have adjusters on them so you dont need pulleys. Most mappers check the timing anyway. Depends how confident you are really.

iirc they are around £480 from QEP for them, not 100% sure though.

25th March 2009, 02:08

Quote:

Originally Posted by adzvtr

i know a standalone ecu would be good, but for now want to just remap standard ecu, and take the revs to 8, 8.2, to cater for the rangeof the cam.

Wouldn't that just be a waste of money though?

The predator ECU costs about £500, a remap from chip wizards is about the same so might as well go for the predator.

25th March 2009, 02:11

cheers mate, bin a big help, given me some ideas to think about, thankyou

25th March 2009, 02:18

Quote:

Originally Posted by Mieran

Wouldn't that just be a waste of money though?

The predator ECU costs about £500, a remap from chip wizards is about the same so might as well go for the predator.

if i could get enough together i would get better ecu, would like one that could be mapped with my nitrous aswell,

25th March 2009, 03:24

i'm doing a group buy on newman cam's at the moment £270 delivered for the ph3 cam's

25th March 2009, 09:47

you have nitrous aswell??

25th March 2009, 15:12

ye m8i do,

25th March 2009, 15:14

Quote:

Originally Posted by RICKYP-RPM

i'm doing a group buy on newman cam's at the moment £270 delivered for the ph3 cam's

are these similar to the 285s, and 708s, would i need to change anything else with the ph3s

25th March 2009, 15:16

ph3s are similar to 708s, theres about 2-3bhp between all of them.

25th March 2009, 15:29

is it possible to run these cams with a charger, a m8 is interested in gettin them 2 but he wants to charge his.

25th March 2009, 15:47

Quote:

Originally Posted by adzvtr

is it possible to run these cams with a charger, a m8 is interested in gettin them 2 but he wants to charge his.

turbo charge or supercharger

25th March 2009, 17:03

supercharged m8

25th March 2009, 17:35

not sure of with supercharger but turbo you have to have turbo cams http://www.catcams.co.uk/acatalog/TU...bocharged.html

28th March 2009, 15:22

Quote:

Originally Posted by mattevts

not sure of with supercharger but turbo you have to have turbo cams http://www.catcams.co.uk/acatalog/TU...bocharged.html

you dont have to have boost cams.

I have known of people using 708s before, you need to select the cam choice right for boost, but it isnt a 1 cam only application