Motorhead, I am about to fully mod my air box and make a uni filter. My question is how do you think I should map it with a Yoshi box. Right now I am at +5,+5,0. This set up made the most horsepower on the dyno. I have a 1/2 modded box(cut to the filter), short stacks, yosh duplex. After I cut the box should I go 5,5,5? or leave it the way it is. At one time I had it at 0,+5,+10, It ran good but on the dyno 5,5,0 made five more horsepower. What do you think?
? For THEMOTORHEAD
- Thread starter OB_ZXALAN
- Start date
OB_THE MOTORHEAD
Registered
1130 on the idle +5+5+5 should be good.long stacks on all 4 will bump you up 2-3 more hp above the other mods.
Do you sell the long stacks?
I had the idle circuit at about 11:45 but had a substantial hesitation at 2500 rpm. Change back to 12 oclock and got better but still has a hesitation somewhere below 3k. Is it possible to tune it out with a yosh box or is a PCII absolutely nessecary? It is not noticeable at the track but when revving it in neutral especially after throttling and letting off it coughs its *** off only clearing its self after about 3500 rpms. I am hoping that maybe the box mod will lean it out some and clean it up in the rev range, what you think MHEAD?
I had the idle circuit at about 11:45 but had a substantial hesitation at 2500 rpm. Change back to 12 oclock and got better but still has a hesitation somewhere below 3k. Is it possible to tune it out with a yosh box or is a PCII absolutely nessecary? It is not noticeable at the track but when revving it in neutral especially after throttling and letting off it coughs its *** off only clearing its self after about 3500 rpms. I am hoping that maybe the box mod will lean it out some and clean it up in the rev range, what you think MHEAD?
OB_Johnnycheese
Registered
It would not hurt if you never have done them there are no air screws like on TL's a set of sticks and a manual It is more critical to set TPS
OB_THE MOTORHEAD
Registered
this setting has worked fine with my box.on some i went to 1100 .my box will lean it out A LOT.THATS TO FAT FOR THE STOCK OR SMALL MOD BOX.
OB_THE MOTORHEAD
Registered
cheese the tps is usually high so if your doin my box leave it there.order your shifter?
OB_Johnnycheese
Registered
shiter will be ordered tomorrow morning and I will have to set it back I have changed it.
Hey MHEAD or JCHEESE, after I do the airbox mod do you think I need to sync the throttle bodies? I have not done them yet. I think I can use a regular mercury carb synchronizer, Is this true? I tried to do a search on synching the throttle bodies but came up with nothing! How do you do it? I am going to do my box tonight and am planning on going to the track Friday night so I want it right. Are there air adjustment screws to adjust the TB's or what? Any help I will greatly appreciate!
I checked the TPS last week. It was in the middle position at 1100-1200 rpms but when the throttle was raised to about 1300-1400 rpms, it jumped to the top. I believe thats a little to early but I didnt adjust just because I didnt have the security torx. Should I adjust or just leave it, I will be installing my fully modded box tomorrow so I am thinking of leaving it where it is at. What do you guys think? Also we have a manual on order but it wont show up for another two weeks or so, do you think it is hurting the performance ANY racing it without a synch job? The bike hauls *** but stumbles bad below 3k. I will play with the yosh box tomorrow also after installing the air box
OB_Johnnycheese
Registered
get it up a little more on the TPS the sink is not going to hurt wide open preformance.
Similar threads
