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Indy Dans Turbo Clutching

indydan

Well-known member
Lifetime Membership
Nov 27, 2007
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Welch, Minnesota
www.indyspecialty.com
Forgive me for the dumb questions to follow...I'm still learning.

When we say "gear down", are we talking actually increasing the ratio.. for example, going from a 2.33:1 to a 2.53:1? This then by theory would create less load on the engine/clutches, & lower top speed, correct?

So, "gearing up" would be going from, say a 2.53:1 to 2.33:1, thereby increasing the load on the engine and increasing the top speed?

Am I following this correctly? Would it be ideal to gear up as high as possible while still maintaining the proper power curve? My thought behind it is, if the track is spinning, you might as well spin it as fast as you can (mountain riding).
Yes you were mentioned examples of during our correct....

When I say most are geared to low....... I mean that in a way that properly loads the turbo hard enough.

But there is an exact contradiction to what I mentioned when I say ( most ) gearing also has a lot to do with writing ability.

Example....... And please don’t take this out of context or let it go to your head
If you’re not very experienced rider...

If you’re fairly tall and/or really strong ( both is good )and can really manhandle the sled and jerk it around.....

Then the stock gearing is to low ( especially for climbing )

Boondocking only and low to mid experience then low gears not a big deal.... easier on belts.

We have been finding the guys that ride a lot like taller gears and more helix like
Our turbo 3 or our Turbo Extreme
 

A@ron

New member
Premium Member
Apr 17, 2017
28
4
3
Nodak
Hole #2 raises the engagement and low to mid throttle response.

Try #1 full and the other hikes empty for what explained.
ended up being some bad gas. was too excited for the first ride and i forgot to pump out old fuel and replace. After two new plugs and burning through that old stuff she then came alive. ran 8350+/- for the rest of the trip and pulled great!

Just picked up the turbo 3 helix cant wait so see what she does now!
 
Last edited:

A@ron

New member
Premium Member
Apr 17, 2017
28
4
3
Nodak
purchased the Indy Specialty kit came with the M1 helix, weights and springs

I installed it as it was shippied, bottom end response was incredible, very impressive.

after riding it a few days i felt i could use more top end pull

phoned IS about my findings and was given direction as to use the M3

M3 pulled every bit as ahrd on the bottom and harder on the mid and top end
Dan warned me that things happen quite a bit faster with this helix so be prepared he wasnt lying!!

my set up as of now is red primary, 1-3-1 weights 75 grams black spring with the M3 helix

8400 +/- 100

very impressive
how much boost are you running and at what elevation do you ride at?
 

NapaMatt

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Mar 13, 2009
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Stewartville, MN
www.napaonline.com
?

42 - 48 .36. Is this a faster shifting

40 - 46. .36

Using on 2011 pro 800

. 5.2 boost.
100LL fuel 100%
1200 ft

Indy Dan's.

Red spring
Turbo T3 74.40 grams

Have the 42 - 48 .36. Installed
Stock sec spring 155/222

Don't really have any good test snow.. going to the deep this weekend.. first ride!!

Should I change my secondary grove


As of now primary weight holes full 0 3 1
 

Spaarky

Well-known member
Oct 5, 2001
3,401
1,295
113
Chester, SD
we have messed with dans weights some , they work pretty well. I do not remember what magnet where.

One thing I noticed is it appears you are trying to mix and match. Springs helix and weights. I would run what Dan recommends with his weights. That helix looks like BD or Silber numbers. Unless Dan has changed his program. Your best results will come running all of Dans set up.
 

NapaMatt

Well-known member
Lifetime Membership
Mar 13, 2009
4,914
548
113
Stewartville, MN
www.napaonline.com
?

42 - 48 .36. Is this a faster shifting

40 - 46. .36

Using on 2011 pro 800

. 5.2 boost.
100LL fuel 100%
1200 ft

Indy Dan's.

Red spring
Turbo T3 74.40 grams Found a cracked Y pipe!! ops! 81grams last night, going to try 83's next

Have the 42 - 48 .36. Installed
Stock sec spring 155/222

Don't really have any good test snow.. going to the deep this weekend.. first ride!!

Should I change my secondary grove


As of now primary weight holes 2 4 2
 

Snowman.PRO.

Active member
Lifetime Membership
Dec 16, 2015
247
28
28
MN
16 axys silber @ 7
complete indy specialties Turbo clutch kit @ 72.9 grams.
Pulls 8350rpm +/-

One thing I am a little unsure of, what engagement RPM should I be seeing? I normally see around 4200 Rpm. Is this right or should I be seeing higher?
 

Sheetmetalfab

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Oct 5, 2010
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Ak
16 axys silber @ 7
complete indy specialties Turbo clutch kit @ 72.9 grams.
Pulls 8350rpm +/-

One thing I am a little unsure of, what engagement RPM should I be seeing? I normally see around 4200 Rpm. Is this right or should I be seeing higher?
Pretty normal.

Use the backside hole to adjust engagement. (More weight = higher engagement)

Move to heel to lower engagement and raise high early trackspeed.

What elevation?
 

Snowman.PRO.

Active member
Lifetime Membership
Dec 16, 2015
247
28
28
MN
Pretty normal.

Use the backside hole to adjust engagement. (More weight = higher engagement)

Move to heel to lower engagement and raise high early trackspeed.

What elevation?
I should have mentioned with the silber clutching, I was running 76 grams. Still pulling as high as 8650, maybe higher. I was afraid to hold it to the bar. Seemed too high of RPM. So the Indy specialties clutching definitely allowed me to run a lot LESS weight which kept the RPMS lower(8350+/-). They had me dialed out of the box on the weight setup up 72.9.

I wouldn't mind a higher engagement if that would further better the low end snap/turbo lag. Even with this setup its still no NA motor as far as low end snap. That's my biggest complaint of having a turbo sled(low end snap is lost), but once its moving, the power is addicting and FUN!

I am usually 9-11000ft.

Right now, I have Heel hole 1- Has 2 magnets in it, center hole 2- has 1 magnet, 3rd hole- 0 magnets. Pretty sure thats how they set me up. I could try moving 1 magnet from the hole next to the heel, which has 2 magnets, and put that in the 3rd hole. That may increase engagement and give me a little more low end snap?
 

Sheetmetalfab

Well-known member
Lifetime Membership
Oct 5, 2010
5,334
2,880
113
Ak
I should have mentioned with the silber clutching, I was running 76 grams. Still pulling as high as 8650, maybe higher. I was afraid to hold it to the bar. Seemed too high of RPM. So the Indy specialties clutching definitely allowed me to run a lot LESS weight which kept the RPMS lower(8350+/-). They had me dialed out of the box on the weight setup up 72.9.

I wouldn't mind a higher engagement if that would further better the low end snap/turbo lag. Even with this setup its still no NA motor as far as low end snap. That's my biggest complaint of having a turbo sled(low end snap is lost), but once its moving, the power is addicting and FUN!

I am usually 9-11000ft.

Right now, I have Heel hole 1- Has 2 magnets in it, center hole 2- has 1 magnet, 3rd hole- 0 magnets. Pretty sure thats how they set me up. I could try moving 1 magnet from the hole next to the heel, which has 2 magnets, and put that in the 3rd hole. That may increase engagement and give me a little more low end snap?
Move a magnet from #1 to #2
 
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