rtbain
Expert Class
old, fat and slow
Posts: 244
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posted May 20, 2010 11:32 AM
LSR helmets
I know no one would modify an existing helmet thus negating its certification. I would never remove the stripping and sand the shell for better clearance in the neck/back area then replace the edge stripping. I would also never trim my back protector for more clearance. Doing the same to the port would likely get caught by the tech inspectors.
Is there a helmet made so that allows you to actually see in a tuck?
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Randy
   
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ZRXDean
Needs a job
Posts: 2225
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posted May 20, 2010 12:21 PM
I usually just push mine up a little.
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rtbain
Expert Class
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posted May 20, 2010 12:52 PM
I have tried that without much success. Probably my old fat ass, well neck getting in the way.
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Randy
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Red1
Expert Class
Posts: 442
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posted May 20, 2010 01:21 PM
 Edited By: Red1 on 20 May 2010 21:22
RTBAIN,
Check out the OGK FF5 helmet series from Japan. These helmets are hand-made 1 by 1 and it is a small family owned business in Japan. Many of the Japanese racers use these helmets. I'm not a LSR racer but I love my helmet! They are kinda expensive $500 - $600 US Dollars. Mine is a limited edition model.
Good Luck,
Red1
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Red12/Blue14
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Halvefast
Zone Head
Posts: 806
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posted May 20, 2010 06:34 PM
Edited By: Halvefast on 21 May 2010 02:35
Try this Randy:
http://www.proracegear.com/helmets.htm
Hope this helps, they were designed for Dragracing bikes which is the same tuck.
Cut higher in the back, taller port opening, hopefully they are still available in your size.
____________
Texas Mile 200.256mph - Oct. 2007 (Update 202.577mph Oct 2008) NOS assisted
ECTA Ohio Mile 195.132mph
TexasMile 2012 199.9 mph all motor!
Streetriders Shootout 2008 series Pro/ET Champ!
Streetriders Shootout 2007 Series Pro/ET Runner-up!
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KZScott
Needs a life
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posted May 20, 2010 07:11 PM
quick question, what certification is required? snell____?
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00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
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rtbain
Expert Class
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Posts: 244
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posted May 21, 2010 03:03 AM
Many sanctioning bodies are moving to the 2010 Snell certification. Simpson makes an '05 with a larger eye port and bite cut in back.
Way cool on the Aria. Will look into it.
thanks guys!
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Randy
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eklipse636
Needs a life
ZX-14
Posts: 6046
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posted May 21, 2010 09:44 AM
quote:
Many sanctioning bodies are moving to the 2010 Snell certification. Simpson makes an '05 with a larger eye port and bite cut in back.
Way cool on the Aria. Will look into it.
thanks guys!
+1
AMA dragbike will still let you run with a snell 2005, but not for too long. The helmet I just got last year is a 2005, just because it was cheap.
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rtbain
Expert Class
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Posts: 244
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posted May 21, 2010 11:08 AM
The Arai's are going fast and are Snell 2000.
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Randy
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rtbain
Expert Class
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Posts: 244
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posted July 19, 2010 01:18 PM
I think I found one answer. Made by Impact Racing the helmet is "SA" certified by Snell.
The model is Impact Super Cyclone Racing Helmet
url:
http://www.impacthelmets.com/impactsupercyclone.html
I spoke with Snell about the SA certification. It was interesting, well to me at least. The world according to Snell follows. The “SA” certification is for closed course work only. The eye port is significantly smaller to reduce the “edge blur” associated with high speeds.
Reducing the size of the eye port allows the driver to better focus on the task at hand. Many rider/drivers further reduce the eye port opening with tape to reduce the effect of vision blurring at speed.
To reduce vibration induced blurring the helmet should be tight, not snug, tight; especially if you are exposed to high-speed buffeting winds. Like on a mile or LSR bike.
Back to Randy’s uninformed opinions:
I purchased an Impact Helmet. Nicely made and finished. The sucker is tight. First couple of times I wore it I was concerned. It is breaking in now and more comfortable. Compared to my Arai it is akin to a medieval torture device.
BUT I experienced moderate to severe blurred vision with my beloved Arai. It will by the October Texas Mile before I can give any real world riding impressions but it appears this may be an improvement over my Aria for this application.
A solid counter argument is just get a smaller size Arai; can’t really argue there. The guy at Snell would differ. In his opinion Arai makes great helmets. But for drag/LSR they are not the best choice.
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Randy
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entropy
Moderator
Posts: 8671
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posted July 19, 2010 01:40 PM
Randy,
get yer head of the wind and voila, blurring gone.
I had blurring so bad a few years ago that i dumped the throttle, literally couldn't see the finish line, with a bad, gusting cross wind to boot.
Double Bubble + cut tank = no helmet vibration at all.
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osti33
Needs a job
Posts: 2973
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posted July 19, 2010 02:15 PM
Edited By: osti33 on 19 Jul 2010 22:26
quote:
I think I found one answer. Made by Impact Racing the helmet is "SA" certified by Snell.
The model is Impact Super Cyclone Racing Helmet
url:
http://www.impacthelmets.com/impactsupercyclone.html
I spoke with Snell about the SA certification. It was interesting, well to me at least. The world according to Snell follows. The “SA” certification is for closed course work only. The eye port is significantly smaller to reduce the “edge blur” associated with high speeds.
Reducing the size of the eye port allows the driver to better focus on the task at hand. Many rider/drivers further reduce the eye port opening with tape to reduce the effect of vision blurring at speed.
To reduce vibration induced blurring the helmet should be tight, not snug, tight; especially if you are exposed to high-speed buffeting winds. Like on a mile or LSR bike.
Back to Randy’s uninformed opinions:
I purchased an Impact Helmet. Nicely made and finished. The sucker is tight. First couple of times I wore it I was concerned. It is breaking in now and more comfortable. Compared to my Arai it is akin to a medieval torture device.
BUT I experienced moderate to severe blurred vision with my beloved Arai. It will by the October Texas Mile before I can give any real world riding impressions but it appears this may be an improvement over my Aria for this application.
A solid counter argument is just get a smaller size Arai; can’t really argue there. The guy at Snell would differ. In his opinion Arai makes great helmets. But for drag/LSR they are not the best choice.
Typically you would want a snell "M" certified helmet for a motorcycle instead of the "SA". SA is usually found on car helmets and "M" on motorcycle helmets. For example, my helmet says snell M2005.
Some places an M won't pass tech for a car and and SA won't pass tech for a bike even though both are snell rated. Other places don't care as long as they see the snell sticker. I'm not 100% sure how they do the helmet tech at Texas.
Here is a cut and paste on the differences.
"HELMET RATINGS...WHAT DO THEY MEAN?
Snell SA Rated Helmets:
Snell "SA" (Sports Application) rated professional helmets are designed for auto racing and provide extreme impact resistance and higher fire protection.
Snell M Rated Helmets:
Snell "M" (Motorcycle) rated helmets are designed for motorcycling and other motorsports. They offer slightly less protection than SA rated helmets.
What are the key differences between SA and M Rated Helmets:
SA standard requires flammability test while the M standard does not.
SA standard has rollbar impact test while M standard does not.
SA standard allows narrower visual field than M standard (Some SA helmets aren't street legal)."
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Shane661
Needs a life
Posts: 11494
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posted July 19, 2010 02:46 PM
Edited By: Shane661 on 19 Jul 2010 22:47
According to the website, that helmet is:
"SNELL 2005 & SFI/FIA Approved "
Whatever the hell that means... 
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rtbain
Expert Class
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Posts: 244
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posted July 19, 2010 03:59 PM
Karl - I agre getting out of the slip stream is a huge help
OSti33- The guy at Snell stated the SA (Special applications) was approved by all sanctioning bodies. He went to far as to say it should be a requirement.
like I said, I have no experience to back any of this up, just thought I would share interesting information. I could very well have wasted my money, but then it would not have been the first time.
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Randy
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Halvefast
Zone Head
Posts: 806
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posted July 20, 2010 08:42 AM
Here is a link showing the testing that goes into Motorcycle Snell testing, IMHO it exceeds SA testing, they test for mutilpe pointed object impacts as well as rounded impact points, not just rollbar testing.
http://www.araihelmet-europe.com/2009/RX-7GP%20Movie/images/intro_02.html
____________
Texas Mile 200.256mph - Oct. 2007 (Update 202.577mph Oct 2008) NOS assisted
ECTA Ohio Mile 195.132mph
TexasMile 2012 199.9 mph all motor!
Streetriders Shootout 2008 series Pro/ET Champ!
Streetriders Shootout 2007 Series Pro/ET Runner-up!
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rtbain
Expert Class
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Posts: 244
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posted July 20, 2010 09:51 AM
I won't argue. I was just repeating what the guy at the Snell foundation said. For LSR work SA was better than M certification.
In the end I suppose it really doesn't mater much. Will let you know how the helmet works at Texas in October.
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Randy
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wrongway
Pro
Posts: 1078
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posted July 21, 2010 06:45 AM
quote:
Randy,
get yer head of the wind and voila, blurring gone.
I had blurring so bad a few years ago that i dumped the throttle, literally couldn't see the finish line, with a bad, gusting cross wind to boot.
Double Bubble + cut tank = no helmet vibration at all.
I have learned to live with it on the naked bike.. i ride it just like a drunk and cover 1 eye , that has always helped in the past ... amazing what you can learn at dumb-dumb driving school .
Roy
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ZRXDean
Needs a job
Posts: 2225
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posted July 21, 2010 12:49 PM
Focus is for pussies.
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rtbain
Expert Class
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posted July 21, 2010 02:14 PM
quote:
Focus is for pussies.
best reply yet
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Randy
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texanzone
Novice Class
Posts: 73
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posted July 23, 2010 02:51 PM
Hey Randy you get that beast running yet
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rtbain
Expert Class
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Posts: 244
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posted July 24, 2010 03:25 AM
Not yet. Waiting on bearings.
Today the plan is to mock the engine with old bearings and cc the cylinders and calculate CR.
Next on the list is degree the cams and clay the motor.
Fit the mocked motor, install the pipe and mark for EGT sensors.
Drop the motor then tear down, clean and bag for final assembly.
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Randy
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entropy
Moderator
Posts: 8671
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posted July 24, 2010 04:51 AM
are you going to set up yr shims on the bench? (before degreeing cams)
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rtbain
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Posts: 244
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posted July 24, 2010 05:48 AM
I was re-reading all the comments posted here. I fear I might have come across as not listening. Please understand I come here for comments from people who have WAY more experience than me and I respect your opinions.
My vocation has trained me in the dark art of critical thinking. As such I tend to ask questions on every opinion I encounter to help me better understand the thought process.
This can sometimes be interpreted as argumentative. It’s not meant to be, but the more questions I ask and arguments I present the better I understand the subject.
Sometimes I will get an idea and try it just to see if it works even though it flies in the face of popular opinion. This is called being an idiot. Something I am very god at.
Even if the idea does not work I have learned something. And to me that is the point. The only failure is not learning from one’s mistakes. The fun in life is sometimes challenging conventional wisdom.
Thanks for your kind patience while I go through the process.
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Randy
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