Jump to content


Welcome to JZX World Forums


Sign In  Log in with Facebook Log in with Twitter

Create Account
Welcome to JZX World Forums, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information for you to signup. Be apart of JZX World Forums by signing in or creating an account.
  • Start new topics and reply to others
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Customize your experience here
 
Guest Message by DevFuse

Photo
- - - - -

To Tomei Cams or Not to Tomei Cams

tomei cams camshafts poncams

  • Please log in to reply
10 replies to this topic

  #1 eyebeclubin

eyebeclubin

    Goodfella

  • Lifetime Supporter Lifetime Supporter
  • 847 posts
    • Time Online: 44d 17h 9m 43s
  • Gender:Male
  • Location:Melbourne, Victoria
  • Country:Australia
  • Car:Toyota JZX100 Chaser S2 1999

Posted 15 December 2014 - 02:49 PM

I've seen the question being thrown around here recently, especially since tomei brought out their poncams for the VVTi 1JZ-GTE...
 
And you all know the Question... "Are Cams worth it?"
 
I guess it all depends on what you are after.
 
 
I my self am not going to debate it here... 
But I guess you guys can have a look at my results and make your mind up from them.
and debate them more...
 
Ok so as you may already know I had engine trouble and got a replacement motor.
Had Tomei cams that where waiting in the wings to be installed which they where.
Pulled out the sad motor & found my turbo had died, so organised a Hypergear high-flow.
Got all of installed and happy days...
 
Well... not exactly...
 
After what seemed to be only a few weeks actually 5 weeks 3 days... this happened
 
 
IMAG0133_zpsh3rq2e0v.jpgIMAG0134_zpsdasmrg3k.jpgIMAG0136_zpslpwqswcl.jpg
 
So yep... Tomei has failed me once more... not to mention they want me to pay for the shipping of the faulty component.
 
To give you a time frame the tune with cams was on 7th July 2014 the night they broke 21st August 2014...
So 5 weeks 3 days... and wasn't getting driven every day...
 
Can I say a big thank you to Simo and Choonga for rescuing me, my car and my friends who where with me at the time...
 
So again thanks to Simo of 612 Autoworks the car is up and running and doing fine with stock cams..
 
Ok Dyno Graph time...
 
Hypergear ct15b gt30 High-Flow + stock cams - Red curve
Hypergear ct15b gt30 High-Flow + Tomei cams -Blue curve
 
Power & Torque Curves
IMAG0290_zps6ha2wgku.jpg
 
Boost Curve
IMAG0291_zpsfu8wzghn.jpg
 
 
So the breakdown is as follows
 
Hypergear ct15b gt30 High-Flow + Tomei cams
Peak Power:  278rhkw @ 6463rpm
Peak Torque: 510Nm @ 3495rpm
Peak Boost:  20psi @ 3449rpm
 
Hypergear ct15b gt30 High-Flow + stock cams
Peak Power:  270rhkw @ 6620RPM
Peak Torque: 486.2Nm @ 4043RPM
Peak Boost:  20psi @ 3530rpm
 
So tomei cams Vs Stock looks kinda like this 
 
power gain:  8rhkw coming in @ 157rpm sooner
torque gain: 24Nm coming in @ 548rpm sooner
boost response: 20psi coming in @ 81rpm sooner
 
But over all there is a healthy gain over the whole rev range when looking at the graphs.
 
Boost and torque could of been adjusted to come in even earlier by retarding the timing on the exhaust side but as Trent said that would be like robbing Peter to pay Paul as top end power would suffer...
 
Seat of the pants driving is different, boost doesn't come on as hard and the engine doesn't seem as angry.. cant really say much more since is been so long since having the tomei cams in.
I must say thought that the car feels better on take off with stock cams, not sure why but the Tomei cams, made the car feel like it need a little bit of a push of the line... or it could just be that I'm a shit driver...
 
So at the end of that is it really worth it???
Well for me no, as all the Tomei products I've bought have basically been binned... :(
 
Ok, Talk, discuss at will...
 
Oh and admins if you think it's worthy to be pinned/stickyed, please do so... :D

  • 2

  #2 Vomit

Vomit

    #1 Miley Fan

  • Lifetime Supporter Lifetime Supporter
  • 1091 posts
    • Time Online: 63d 23h 36m 13s
  • Gender:Male
  • Location:Melbourne
  • Interests:Bourbon, Sunroofs & Toyotas
  • Country:Australia
  • Car:The General Lee

Posted 15 December 2014 - 03:09 PM

HKS cams
</THREAD>


  • 1

  #3 oggy

oggy

    Thug

  • Lifetime Supporter Lifetime Supporter
  • 257 posts
    • Time Online: 19d 7h 45m 29s
  • Gender:Male
  • Location:Mildura
  • Country:australia
  • Car:JZX110 fortuna

Posted 15 December 2014 - 07:16 PM

wow, that sucks to see that happen! Good to hear the car is going again at least.

I hope that's going to be a once off and not a common fault with them, Ima be well pissed off if mine break like that!

 

To answer the thread though, specs wise the tomei's are pretty piss weak, which is why peak gains are minimal but you have a pretty consistant ~10kw gain over most of the RPM range.   

The advantage they have is that they are reasonably priced and available. 

 

The HKS on the other hand are no doubt better cams (more aggresive, and billet?), but dearer and not always available. When I was looking to get a set they were on back order with something like an estimated min 2 month wait or some crap so I gave them a miss. 


  • 0

  #4 5hu7o

5hu7o

    What am i talkin about?!

  • Forum Moderator Moderators
  • 1958 posts
    • Time Online: 92d 16h 36m 18s
  • Gender:Male
  • Country:Sydney, Australia
  • Car:Jzx100 chaser TraumSports

Posted 15 December 2014 - 08:08 PM

HKS cams
</THREAD>

sounds about right


  • 0

  #5 DieselKing

DieselKing

    Diesel King

  • Lifetime Supporter Lifetime Supporter
  • 613 posts
    • Time Online: 137d 11h 48m 50s
  • Gender:Male
  • Location:JZXGG
  • Country:Australia
  • Car:LX90
Garage View Garage

Posted 15 December 2014 - 11:46 PM

Jesus Mahal, Tomei Dirty Double.


  • 0

  #6 Indelible

Indelible

    Godfather

  • Forum Moderator Moderators
  • 4209 posts
    • Time Online: 400d 16h 52m 31s
  • Gender:Male
  • Car:slow one

Posted 16 December 2014 - 09:08 AM

https://www.youtube....h?v=PgpDN-bARwc


  • 0

  #7 Panzer

Panzer

    Goodfella

  • Lifetime Supporter Lifetime Supporter
  • 899 posts
    • Time Online: 29d 12h 48m 23s
  • Country:Australia
  • Car:1jz-gte + 1uz-fe

Posted 16 December 2014 - 09:47 AM

That's so piss poor that they failed. Tomei I won't buy your cams.
  • 0

  #8 Kaizoushin

Kaizoushin

    Lackey

  • Standard member Members
  • 87 posts
    • Time Online: 2d 15h 56m 27s
  • Gender:Male
  • Country:Japan
  • Car:1998 Chaser Tourer V TRD

Posted 16 December 2014 - 09:58 AM

I've had mine in for about a year without a fault. They definitely gave the car a boost in the acceleration department (I'm on the stock turbo) and I'm happy with them. When I saw the price for HKS cams, that pretty much made the choice easy for me.
  • 0

  #9 eyebeclubin

eyebeclubin

    Goodfella

  • Lifetime Supporter Lifetime Supporter
  • 847 posts
    • Time Online: 44d 17h 9m 43s
  • Gender:Male
  • Location:Melbourne, Victoria
  • Country:Australia
  • Car:Toyota JZX100 Chaser S2 1999

Posted 16 December 2014 - 12:54 PM

I know right...

Whats worse I hat do wait 2 months to get them then when I finally did had to send them back to have them replace because they apparently found a faulty set in that batch.
Mind you they did give me a DHL account to use to ship them back to Japan.


  • 0

  #10 Panzer

Panzer

    Goodfella

  • Lifetime Supporter Lifetime Supporter
  • 899 posts
    • Time Online: 29d 12h 48m 23s
  • Country:Australia
  • Car:1jz-gte + 1uz-fe

Posted 16 December 2014 - 08:21 PM

That's terrible. Did it sound tuff at idle? Like the idea of the angry sounding car but this has put me right off the poncam. And quite an investment for just 8kw.
  • 0



Similar Topics Collapse




0 user(s) are browsing this forum

0 members, 0 guests, 0 anonymous users


Toggle %s JZX Hall of Fame!

Daily Top Posters Weekly Top Posters Monthly Top Posters Overall Top Posters Most Liked Users