Turbo Clutching Update

philsummers21 · Dec 24, 2012

Looking for some updates on what everyones final clutching is to there turbod Pros. Currently running the following setup at 8-10000 ft. 10# of boost. runs about 8100 rpms, kind of sluggish off bottom and secondary is getting hotter then id like. Setup has to be close as it runs pretty good and doesnt blow belts.

2011 Pro 163 12 Boondocker kit

20/42 Gearing

Primary:
10-70
Almond spring (165-325)

Secondary:
40-46 .36
Black/Orange (180-280)

philsummers21 · Dec 25, 2012

I guess everyone is celebrating christmas or doesnt want to share setups.

Thinking about trying to gear down to a 19/42 or 19/43 see if it helps make the sled more snappy off the bottom.

Also may order a new helix 40-48 .40 and 40-50 .40 along with some rooster adjustable weights.

die hard poo · Dec 25, 2012

philsummers21 said:
Looking for some updates on what everyones final clutching is to there turbod Pros. Currently running the following setup at 8-10000 ft. 10# of boost. runs about 8100 rpms, kind of sluggish off bottom and secondary is getting hotter then id like. Setup has to be close as it runs pretty good and doesnt blow belts.

2011 Pro 163 12 Boondocker kit

20/42 Gearing

Primary:
10-70
Almond spring (165-325)

Secondary:
40-46 .36
Black/Orange (180-280)

Here is my set up:
2012 silber kit with boost it fuel controller
7# of boost at 0-3000ft
Current engagement 4200rpm, 8150rpm peak

Clutching:
Team Pink (180/320) primary spring
78g Rooster weights loaded: 2g heel, 5.5g at mid and tip

Orange/black (180/280) Sec spring
42/46/.36 Helix

This seems to be pretty good, but I ordered an EPI pink (185/300)
primary spring to let me run less weight and get my engagement slightly higher. I noticed if you get the engagement too low(below 4000rpm), it lugs the motor too bad and makes it feel very sluggish. I am shooting for 4500rpm engagement to get that snappyness back off engagement like a stock sled. If this spring doesn't allow me to get my engagement higher, I will use the spring washers to increase the engagement some...
Hope this helps! Loving the boost tho!

philsummers21 · Dec 25, 2012

Yeah i actually thought about trying to raise my engagement a bit as well to see how that works. Little different clutching thinking from naturally aspirated to turbos.

Vertical Asshauler · Dec 25, 2012

SLP pink spring will really wake it up. Pretty well as soon as your at engagement boost is on.

philsummers21 · Dec 25, 2012

Well ordered a 19t top gear, a SW h5 180-300 spring and some glide washers. Will report back

CHAZWILDMAN · Dec 25, 2012

SPRING?

Vertical Asshauler said:
SLP pink spring will really wake it up. Pretty well as soon as your at engagement boost is on.

Which Pink spring are you referring to?

philsummers21 · Dec 25, 2012

I couldnt find a slp pink either. Think hes refering to the team pink 180-320

2XM3 · Dec 26, 2012

silber @ 10 psi

155/300 speedwerks H5 primary
76.5 gr roosters , all in the tip
40 50 .4 team helix
145/310 secondary with 2 delrins

@ 7500 ft 8250 pretty good on the bottom as well

Team tied next step

note : the more angle your helix is on top (50) the more pressure you MUST run on the secondary spring to stop belt from slipping under load :face-icon-small-sad...watch belt temps when uppin helix angles, I'd like to go 40 52 and see if i could get it to hold :face-icon-small-dis:face-icon-small-win...the more helix angle on top the less weight you can run,:face-icon-small-sho the less weight the more snappy the bottom will be :face-icon-small-hap its a fine balancing act..:yo:

Vertical Asshauler · Dec 26, 2012

philsummers21 said:
I couldnt find a slp pink either. Think hes refering to the team pink 180-320

Sorry I ment to say its from team and yes its the 180-320.

philsummers21 · Dec 26, 2012

Yeah. Pretty sure im going to try a 40-50 .40 helix. Question that gets me is im running 10-70 weights. Most ive seen are running 75-78grams. With my setup im running only 8200 @ 11# at 10000.
Ordered a sw 175-305 and a 180-300.
Probably get a set of rooster weights coming

2XM3 · Dec 26, 2012

umm kind of interesting there,I had 74 in mine and with 9 psi at 7000 ft pegged rev limit at 8400 ish...but then again i had the rooster weights not the 10 series, and 10000 is gettin up there for sure.

philsummers21 · Dec 26, 2012

Rooster weights are the same profile as the 10s. Course if your @ 9# @ 7000 your making more hp then i am with 11# @ 10000. Planning on clutching for around 12# around 10k.

jked · Dec 26, 2012

2011 boondocker

I have a 2011 boondocker pro 162 running 8# and am running :
Almond/red 165/310
Polaris 10/68 weights
Stock gearing
I will have to check and report back on helix and secondary spring
Running at 8-11k and hitting 8100 rpm max

Feels like stock on bottom end very responsive I am thinking I may grind clutch weights down to 67 or get a 165/320
Spring to get the rpms up o. Top a bit other than that it runs spot on. I am interested to see how the gear down does for you.

CHAZWILDMAN · Dec 26, 2012

elevation

Vertical Asshauler said:
SLP pink spring will really wake it up. Pretty well as soon as your at engagement boost is on.

What is your elevation that you are running this spring?

whittaker727 · Dec 27, 2012

2XM3 said:
silber @ 10 psi

155/300 speedwerks H5 primary
76.5 gr roosters , all in the tip
40 50 .4 team helix
145/310 secondary with 2 delrins

@ 7500 ft 8250 pretty good on the bottom as well

Team tied next step

note : the more angle your helix is on top (50) the more pressure you MUST run on the secondary spring to stop belt from slipping under load :face-icon-small-sad...watch belt temps when uppin helix angles, I'd like to go 40 52 and see if i could get it to hold :face-icon-small-dis:face-icon-small-win...the more helix angle on top the less weight you can run,:face-icon-small-sho the less weight the more snappy the bottom will be :face-icon-small-hap its a fine balancing act..:yo:

As per your recomondations Bill,

I too am running a 40-50 .40 or 40-48 .40
140/300 Titanium secondary

MDS turbo weights 74.4 gr loaded in the tip and the middle with a black/green pirmary

7 tooth drivers, 3" track 19/43 gears and I LOVE it! Super cool belt temps and awesome up and back shift. 300 miles of smiles now :bounce:

allblowdup · Dec 27, 2012

This has been working great for me this year @ 3000 ft.
Titanium 165-270 pri
10-70
helix straight 50
sec 180-280
9lbs 8200
engagement 4100

philsummers21 · Dec 27, 2012

Sounds like i need to go ahead and order a 40-50 .40 helix and secondary spring

2XM3 · Dec 27, 2012

team still has the titanium secondary springs in stock, you will need the special delrin too if ya go with the titanium spring :face-icon-small-coo

philsummers21 · Dec 30, 2012

So where are you guys getting the 40-50 .40 helixs made?

Turbo Clutching Update

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Similar threads