Jump to content

Welcome to Autoworld Forum !

Sign In or Register to gain full access to our forums. By registering with us, you'll be able to discuss, share and private message with other members of our community.

Close
Photo

Pros and Cons using semi-racing cam.


  • Please log in to reply

#1
cyclone

Posted 09 April 2003 - 12:05 PM

cyclone

    Veteran

  • Members
  • PipPip
  • 139 posts
What are the pros and cons of using a semi-racing cam on a 4G13 / 4G15
engine?

#2
Conrod

Posted 10 April 2003 - 08:20 AM

Conrod

    Veteran

  • Members
  • PipPip
  • 233 posts
First thing that comes into my mind is :

Cons:
- Fuel Consumption goes up.
- Might need to change valve clearance and timing. But you will need to
retune too because of the cam replacement.
- Narrower sweet powerband , I think it will narrow your powerband but
also raise the revs , means you need to rev your engine higher to meet
the sweet powerband.

Pros:
- Better acceleration , better torque and power

Well you might want to also do a port and polish job , that way you will
really see a difference Big Smile

#3
waikitfire

Posted 11 April 2003 - 01:52 AM

waikitfire

    Taxi Driver

  • Members
  • PipPip
  • 301 posts
why u put so much of cons for it woh..!
can rev until red spot,
increse HP


but i am sure waste money hahahahha!:)
get a mivec is better hahahaha!:)


#4
BR101GTi

Posted 12 April 2003 - 04:58 AM

BR101GTi

    Advanced

  • Members
  • Pip
  • 61 posts
Hehe dun't put too much faith in a 1.6 Mivec :).

#5
llsaw

Posted 12 April 2003 - 04:35 PM

llsaw

    Tokyo Drifter

  • Members
  • PipPipPip
  • 3,516 posts
Agree!!! :)

#6
waikitfire

Posted 12 April 2003 - 06:50 PM

waikitfire

    Taxi Driver

  • Members
  • PipPip
  • 301 posts
why woh....:)!
they r high cam too..!


#7
Conrod

Posted 16 April 2003 - 02:57 PM

Conrod

    Veteran

  • Members
  • PipPip
  • 233 posts
Hmm ... I think in terms of cost should be better too , just put in high
cam without doing a engine transplant like MIVEC. Engine transplant it
self already RM6K , some more you are gambling with an unknown engine(
half cut ).
Anyway if you want to put RM6K , might as well go for 4G93T , bang for
buck Smile Throw in a set of high cam too , wheel spinning happy Big Smile

#8
waikitfire

Posted 16 April 2003 - 08:23 PM

waikitfire

    Taxi Driver

  • Members
  • PipPip
  • 301 posts
conrod maybe leh ..... it is cheeper:)
but high cam will produce bad low end...
this will cost u alot of fuel money ....!

4G93T still need high cam? throw in a set of high cam cost u 2000+ or more.
better i go for intercooler and bigger turbo and injector will happyly
wheel spinning and cheeper in anyway without touching yr engine..:)

#9
Glee

Posted 20 April 2003 - 01:24 AM

Glee

    Fast & Furious

  • Members
  • PipPipPip
  • 1,437 posts
to throw in a bigger turbo into a 4g93t isn't that simple.. and its not
cheap. how much do you think a larger turbine is? a larger intercooler
(larger than vr4) is already close to costing in the region of RM1000.

and it not as easy as throwing a big turbo in.. if you did that.. you
would need to boost up.. and if you boosted up.. your internals will be
under more stress, and you might have to change to stronger parts.the list
goes on...

#10
waikitfire

Posted 20 April 2003 - 03:53 PM

waikitfire

    Taxi Driver

  • Members
  • PipPip
  • 301 posts
every BHP u wanted to gain also have a price to give....i have herd ppl
just wanted to boost his vtec to 1.2 bar purposely change piston