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Cat cam 421's / piper bp270's or kent cams



  172 CUP
Been looking into getting some cams for my 172 cup,mine allready has matched inlets,182 manifold,yozza exhaust and cda carbon airbox,custom remap by in-car-tech at 189bhp and 161 lfbt.
been searching loads on here and only seems to be a few posts on the piper cams or kent cams rn2004 just wondered what the verdict or possible reveiws from other peeps on here is
choice at the moment is -
1. cat cam 421's - 276deg inlet / 268deg exh
2. piper bp270 (re-Profiled) 278deg inlet / 270deg exh
or
3. kent cams rn2004 286deg inlet / 278deg exh

I am really not bothered about lumpy idle or poor running while driving around town / low rpm etc etc and i allready have a top man to do my remap so thats not an issue.I do plan on taking it around the track and day to day use,but as stated earlier lumpy idle and poor slow speed running is not a problem.

Thanks in advance guys.
marcus
 
  Mazda 3 MPS Mk1
421's dont run very well on the stock ecu mate, they can be made to work, but car is very poor around town at low rpms. 421's are designed for aftermarket management. I have 428's fitted, and sometime low down they are a little lumpy so 421's would be terrible. id reccomend the 428's, best of both worlds

Oh and id stick with new billet cams, not re profiled jobbies
 
If you still intend to run a pressure based plenum setup via the stock ECU then it's going to be quite unpleasant.

We're just finalising our cam profiles at the moment but will have two options on the market by the end of this month at circa £420 + VAT a pair machine from a billet.
 
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  172 CUP
is the main issue with 421's just idle / low rpm running as that wouldnt bother me to be honest,i did consider 428's but dont think i would be happy to comprimise,would rather just go all out or nothing,do you know anyone who may have tried piper or kent cams as there durations seem to be more aggresive than the cat cam range.
lumpy idle is nothing my last subaru sti was terrible but in a good way.lol
 
  ITB'd MK1
I wouldn't fit re-profiled cams. 421s are very good, but as said are tricky on the standard ECU. Planning on doing it though, as last time i saw it tried, the available control of the ECU was far less. I just need to buy a car lol
 
  172 CUP
I wouldn't fit re-profiled cams. 421s are very good, but as said are tricky on the standard ECU. Planning on doing it though, as last time i saw it tried, the available control of the ECU was far less. I just need to buy a car lol
Only looked at piper re-profiles after there was a few good reviews on here about them and the price seems very good,but very werey of profiled cams myself,was just after peeps opinuns on those.Think my choice is really cat cams or kent cams but not many seem to of used kent cams on here.
 
I wouldn't fit re-profiled cams. 421s are very good, but as said are tricky on the standard ECU. Planning on doing it though, as last time i saw it tried, the available control of the ECU was far less. I just need to buy a car lol

Issue on the stock ECU is the lumpy map sensor signal. Remote mount it in a damped plenum and it's much more usable.
 
  Mazda 3 MPS Mk1
428's aint too bad once Matt (icarus) has mapped it!

IMG_0951.jpg
 
428's aint too bad once Matt (icarus) has mapped it!

IMG_0951.jpg

Your car is a bit of a Freak though Dave!!!! It's one of the strongest none port throttled cars I've ever seen :)

Generally 188 - 190bhp on 428's with matched inlets and no aircon compressor is about right.
 
  Mazda 3 MPS Mk1
And mine had air-con lol

Im still coming over for the ITB kit, buying and selling house has got in the way!
 
  172 CUP
If you still intend to run a pressure based plenum setup via the stock ECU then it's going to be quite unpleasant.

We're just finalising our cam profiles at the moment but will have two options on the market by the end of this month at circa £420 + VAT a pair machine from a billet.

What cam profiles will you be using,could be very interested.
 
What cam profiles will you be using,could be very interested.

Our ones. They'll be released with pre and posts on our dev 182 along with the usual info but as I'm sure understand I'm not going to post complete profile details on a public forum or everyone will be banging them out by next week!
 
  172 CUP
Our ones. They'll be released with pre and posts on our dev 182 along with the usual info but as I'm sure understand I'm not going to post complete profile details on a public forum or everyone will be banging them out by next week!

No thats cool fella i fully understand,whats the best wat to get in contact with you to disscuss my neads and current spec of my car,sorry fairly new to the site.
 
  172 ph1
Fred: trying to buy some disks from you, sent PM, sent email, I can try calling tomorrow if all else fails lol
 

Silent_Scone

ClioSport Club Member
  Evo 5 RS
yeah with the RS fabbed airbox though

Although his gay wheels would counter it

:D

Would of been nice to of known what my munch box would of made initially :(
 
  Lionel Richie
bothered? some people take this forum WAY too seriously, a bit of fun never hurt (well my ex girlfrined wasn't impressed with my bit of fun, but that's a story for another time)
 


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