Opinion On Ulmer Stealth Mod Air Box

[UP bushman]

What is the opinion out there on the Ulmers Stealth Air Box Mod and any noticeable improvements with Exhaust or other mods.

 

[vt phazer]

What is the opinion out there on the Ulmers Stealth Air Box Mod and any noticeable improvements with Exhaust or other mods.

i called allen a month ago,he told me a few racers had them and he would check sleds at end of season for r&d should be availiable this year sometime

 

[yam177]

I was one of them that had them for RD along with a PCV that we were working on the mapping for. We also had the Excell exhuast. It worked great and was very reliable and held up under all racing conditions

 

[UP bushman]

Hey yam177 what was the difference at the throttle, response , more power, better pull at what range etc.

 

[yam177]

Much quicker 0-40. Faster response all over and a better pull on the top end. At muni on the Min Maintance road we ran 95-97 on the speedo where the stock sled pulled only 88-91

the Mod sled also had a PCV and an Excell exhuast

Ask Allen i think he was going to put together a kit. I just have to pull the Final fuel map out of the sled and get it over to him

 

[Ruckus]

Any updates?

 

[yam177]

Yup its done and tested map works well i had 900 race miles on the aetup no issues. Worjs real well top spped on the apeedo was 99 on a flat ice road.

 

[Ruckus]

Any photos of this setup?

 

[yam177]

Would have o take the air box baxk out to take pics

 

[Ruckus]

So what makes it different?

 

[yzman]

yeah what does make it different ? should be the same as bullseyes or air pods added to the front cover of the air box shouldn't it?

 

[yam177]

Whole bottom of airbox has been modded. Can't realy say what it is without giving all Allans secrets away. I works good and held up to my abuse. Sled will be at Haydays if you want to check it out. Not sure whos booth yet

 

[Ruckus]

Sounds like he's eliminating the hot air from the engine altogether. Didn't I see a pic of an airbox with 2 fabric intakes?

 

[09phazermichagan]

you think it would help to just make the intake hole in the air box bigger? also you think it would void warranty?

 

[yam177]

Cutting the air box at random will have the opposite effect. You are paying him for the knowledge and time where to cut