Haybusa Parts and Service Member Support
« previous next »
Pages: [1]   Go Down

Author Topic: Yosh cams with 1397 setup (12:1 CR)  (Read 7145 times)

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Yosh cams with 1397 setup (12:1 CR)
« on: November 25, 2006, 07:45:35 AM »
how does this setup sound? durable? ok will lower octane gas? maybe ard 92RON?

maybe a lower CR will help with easier hot cranking?
any expert opinions on this?

 8)
Logged

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #1 on: November 25, 2006, 09:04:26 AM »
Not an expert but it will be a 190rwhp motor IF stock head and a bit more if ported.

12 to 1 works on 89 r/m(2) method which is like 94RON...  May also work on 92RON...

Logged

Offline Johnnnycheese

  • Post Master
  • *****
  • Posts: 1916
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #2 on: November 25, 2006, 09:28:37 AM »
use 24 volt starting and you can run higher than 12 with 92
Logged
Official Site Tuner
Builder and tuner of some of the FASTEST motorcycle in the world
www.johnnycheese.com

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #3 on: November 25, 2006, 09:51:12 AM »
Quote from: Johnnnycheese on November 25, 2006, 09:28:37 AM
use 24 volt starting and you can run higher than 12 with 92

So how fast your starter spins determines which compression ratio you can use with certain octanes of fuel?

Or is this just a hard statement to decipher... :lol:

Logged

Offline Johnnnycheese

  • Post Master
  • *****
  • Posts: 1916
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #4 on: November 25, 2006, 07:35:25 PM »
the 24 will not let it kick back or hard start when warm.
13.5:1 you can run on 92-93 octane
Logged
Official Site Tuner
Builder and tuner of some of the FASTEST motorcycle in the world
www.johnnycheese.com

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #5 on: November 25, 2006, 08:29:29 PM »
Quote from: Johnnnycheese on November 25, 2006, 07:35:25 PM
the 24 will not let it kick back or hard start when warm.
13.5:1 you can run on 92-93 octane

I was hoping that was what you were saying...

Mine runs on 93 with 13.5 MTC's and i use a 24V starting setup... :thumb:
Logged

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #6 on: November 25, 2006, 11:38:53 PM »
dunno if i've gotten it correctly, but shouldn't a 13.5:1 require a higher octane fuel to prevent pre-detonation?

so am i right to say that it'll be quite safe to be running on ron92 for a 12:1 1397 setup?
my concern is that if i were to go 1397 and when it comes to pumping gas, i wouldn't risk blowing up the engine with lower octane gas as some stations may not have such high octane gas to begin with..
Logged

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #7 on: November 25, 2006, 11:43:30 PM »
btw regarding the setup i posted again, does the yosh cam provide enough lift so that most of the potential of the 1397 maybe exploited..

also.. any advantages of using HD valves springs.. i'm currently looking at a set with 53lbs of seat pressure and coil bind of .520" from APE. will it be crucial for the set up?
Logged

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #8 on: November 26, 2006, 07:47:47 AM »
Kaieiru   -   what country are you in?   You should be fine with 92RON.

The Yosh are about 1 step smaller than optimum - 395/378 Web cams would be optimum but the Yosh cams on a stock head will work fine and put you around 190rwhp with a decent pipe and tune.

The APE springs will work fine - mine still has stock springs in it.  Or Carpenter makes springs too...
Logged

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #9 on: November 26, 2006, 08:12:47 AM »
hi gnd111, i'm from singapore, if you're familiar with where it is.. though we've got a wide selection of gas from RON92 to RON98 with additives...

but i do a fair bit of long distance riding to neighbouring countries.. so have to accomodate to the availability of the gas there..

i hoping to be able to juz get 200rwhp out of this setup reliably... if it's possibe without head porting and high compression... i'll be happy already.. :P
Logged

Offline GeorgeC

  • Mad Post Whore
  • ******
  • Posts: 4985
  • Gender: Male
  • It sucks to be slow...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #10 on: November 26, 2006, 03:29:45 PM »
I ran Yosh cams in my 1397 for awhile and they worked pretty well...  Not the best choice for a larger motor, but they will work out OK...
Logged

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #11 on: November 26, 2006, 05:17:13 PM »
Quote from: GeorgeC on November 26, 2006, 03:29:45 PM
I ran Yosh cams in my 1397 for awhile and they worked pretty well... Not the best choice for a larger motor, but they will work out OK...

how much hp are you getting with your setup then?
Logged

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #12 on: November 26, 2006, 05:31:53 PM »
Ka - he was running 154 in the 1/4 with those cams and a mildly ported head...
Logged

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #13 on: November 26, 2006, 05:43:36 PM »
 :thumb: that sounds impressive...
Logged

Offline GeorgeC

  • Mad Post Whore
  • ******
  • Posts: 4985
  • Gender: Male
  • It sucks to be slow...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #14 on: November 26, 2006, 08:30:41 PM »
Quote from: gnd111 on November 26, 2006, 05:31:53 PM
Ka - he was running 154 in the 1/4 with those cams and a mildly ported head...

No, the bike ran ~150mph with the Yosh cams and other head...  The Ward head/cams were worth another 5-6mph.
Logged

Offline tampated

  • Post Whore
  • ****
  • Posts: 633
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #15 on: November 27, 2006, 11:50:19 AM »
13:1
Web 395 intake cam
Not sure on exhaust cam
93 pump fuel all day long





Logged
Ted....

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #16 on: November 27, 2006, 01:39:46 PM »
Quote from: GeorgeC on November 26, 2006, 08:30:41 PM
Quote from: gnd111 on November 26, 2006, 05:31:53 PM
Ka - he was running 154 in the 1/4 with those cams and a mildly ported head...

No, the bike ran ~150mph with the Yosh cams and other head...  The Ward head/cams were worth another 5-6mph.

I thought it was a bit faster than my setup but i guess it was identical...
Logged

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #17 on: November 27, 2006, 07:29:13 PM »
juz a thought.. wat's the CR for the turbo 1397?
Logged

Offline gazza414

  • Mad Post Whore
  • ******
  • Posts: 2024
  • Gender: Male
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #18 on: November 27, 2006, 07:41:18 PM »
kaieru, Pm me your handphone # as I'll be in Singapore on the weekend and might be able to catch up.
Logged
1 Fast Hayabusa N/A 217.443mph so far

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #19 on: November 29, 2006, 04:24:39 AM »
how much rwhp difference does this (12:1) make compared to 13:1?
Logged

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #20 on: November 29, 2006, 05:20:06 AM »
C/R is not going to make a siginificant difference.  I would recommend the JE pistons at 12.8 c/r...
Logged

Offline KSpecII

  • Rider
  • ***
  • Posts: 439
  • Gender: Male
  • Black & Blue is the fastest color
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #21 on: November 29, 2006, 07:41:19 AM »
what diff does it has then? as compared to a 12:1 CR.. i'm looking at less heat and better compatibility with lower octane gas..
Logged

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #22 on: November 29, 2006, 08:16:46 AM »
Then get some 12-1 Wiseco pistons or whatever they lower c/r is with JE.

Call APE - they will get you setup right with pistons/block/ported head.

Going from 12 to 13 c/r might net 6rwhp...
Logged

Offline Pat Dietrich

  • OFF TOPIC
  • Universal Post Whore
  • **********
  • Posts: 7257
  • 8.6 @ 160 all motor
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #23 on: November 30, 2006, 07:25:09 PM »
Quote from: kaieiru on November 26, 2006, 05:17:13 PM
Quote from: GeorgeC on November 26, 2006, 03:29:45 PM
I ran Yosh cams in my 1397 for awhile and they worked pretty well... Not the best choice for a larger motor, but they will work out OK...

how much hp are you getting with your setup then?

I had that exact set up with a mild port job and had right about 200hp with a soft rear tire which eats hp on a dyno. I ran a best of 8.90 @ 160 and change on a near perfect day. Also, it would start in the hottest temps here (95 or so) on a single battery set-up. YTZ14s
Logged

Offline gnd111

  • Post Apocalyptic Whore
  • ********
  • Posts: 12410
  • Fried Chicken and Gasoline...
Re: Yosh cams with 1397 setup (12:1 CR)
« Reply #24 on: November 30, 2006, 08:40:27 PM »
Quote from: Pat Dietrich on November 30, 2006, 07:25:09 PM
Quote from: kaieiru on November 26, 2006, 05:17:13 PM
Quote from: GeorgeC on November 26, 2006, 03:29:45 PM
I ran Yosh cams in my 1397 for awhile and they worked pretty well... Not the best choice for a larger motor, but they will work out OK...

how much hp are you getting with your setup then?

I had that exact set up with a mild port job and had right about 200hp with a soft rear tire which eats hp on a dyno. I ran a best of 8.90 @ 160 and change on a near perfect day. Also, it would start in the hottest temps here (95 or so) on a single battery set-up. YTZ14s

Damn we need some of that good air in FL... :thumb:
Logged
Pages: [1]   Go Up
« previous next »