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Old 11-14-2017, 12:32 AM   #81
bandakias
 
Join Date: Nov 2008
Location: Greece
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Re: More power 1250.

This is mine with yoshi camshafts and compression, but without porting.
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Old 11-14-2017, 12:17 PM   #82
Blicharski1989
 
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Location: Marana, AZ
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Re: More power 1250.

that looks really good. Do you have any people that you recommend for porting? I would really hate to send my head off and have it hacked up.
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Old 11-14-2017, 01:12 PM   #83
Blicharski1989
 
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Re: More power 1250.

did you mill the head for compression or change pistons?
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Old 11-14-2017, 01:52 PM   #84
bandakias
 
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Re: More power 1250.

Sorry i can not recommend for porting. For compression i milied the head, much cheaper
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Old 11-14-2017, 04:07 PM   #85
Blicharski1989
 
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Re: More power 1250.

how much did you mill to go from 10.5:1 to 12:1?
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Old 11-15-2017, 12:10 AM   #86
bandakias
 
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Re: More power 1250.

I milled the head 0,7 mm and 0,1 the top off the cylinder blocks. For yoshimura camshaft it is should be ok. On my friends bandit they went more, 1mm on head and 0,2 on the block, but with high duration 254/1mm intake camshaft.
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Old 11-15-2017, 10:52 AM   #87
Blicharski1989
 
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Re: More power 1250.

cool where did he get his cam?
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Old 11-15-2017, 11:21 AM   #88
bandakias
 
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Re: More power 1250.

Regrind the intake camshaft is the only other option beside the yoshimura camshafts
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Old 11-15-2017, 01:58 PM   #89
Blicharski1989
 
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Re: More power 1250.

oh ok. are there any gains to be has from the exhaust cam? wondering if I just had the intake cam ground to a 244-248 duration.
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Old 11-15-2017, 11:46 PM   #90
bandakias
 
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Re: More power 1250.

Yes you need to ground the exhaust as it is very very small. Yoshi exhaust is 220 duration 7,4mm lift so something about there, no more than 224. Intake can be regrind up to 8,8mm lift. That seems to be the limit. Yoshi intake is 234/ 8,8 lift. About intake duration you can compare the 2 dyno.
Of course they are different days with quite different temperatures but you can get an idea. The first is intake 254/8,8mm exhaust 220/7,2mm , 1,2mm shaved head/block for compression and head work. The second is yoshi cams, 0,7mm shaved head. Both bikes used same header and ecu hacked. As you see first one is much better at high rpm about the same middle and a little worse at low.

Last edited by bandakias; 11-15-2017 at 11:57 PM.
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Old 11-16-2017, 12:17 AM   #91
Blicharski1989
 
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Re: More power 1250.

are you referencing the dyno graph above?
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Old 11-16-2017, 09:37 AM   #92
bandakias
 
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Re: More power 1250.

The dyno above with 143 rwp is with the yoshimura.
The dyno on page 4 with 152 rwp is with 254 intake.
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Old 11-27-2017, 05:53 PM   #93
Blicharski1989
 
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Re: More power 1250.

im looking at getting a set done by webb. trying to decide on the duration. Hows yours coming along?
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Old 11-28-2017, 01:23 PM   #94
bandakias
 
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Re: More power 1250.

Mine are 255in 232ex My friend's are 254in 220ex
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Old 12-01-2017, 09:42 PM   #95
Blicharski1989
 
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Re: More power 1250.

whats your best run to date?
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Old 12-01-2017, 11:36 PM   #96
bandakias
 
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Re: More power 1250.

My best run is 160,9 rwp. That is with my previous header and yoshimura inlet camshaft in a quite low temperature.


In the dyno run below green line is the same set up as above but with 36 degree temperature. As you can see there is a 5 hp difference. The yellow line is with my second header, 3 more hp on top.



I still need to dyno it with the new camshaft off 255 duration. I Believe i have got about 4-5 more hp.

Last edited by bandakias; 12-01-2017 at 11:37 PM.
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Old 12-02-2017, 02:49 PM   #97
Blicharski1989
 
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Re: More power 1250.

you should be mucher higher with that large cam?
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Old 12-03-2017, 02:00 AM   #98
bandakias
 
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Re: More power 1250.

Quote:
Originally Posted by Blicharski1989 View Post
you should be mucher higher with that large cam?
As i mentioned above in a good dyno day i expect about 166-168 hp
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Old 12-08-2017, 08:56 PM   #99
Blicharski1989
 
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Re: More power 1250.

do you think youve reached max hp out of the bandit?
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Old 12-08-2017, 10:31 PM   #100
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Re: More power 1250.

when do you think the stock 36mm bodies start holding back power?
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