Thunder Products (Big Venom Viper kit) with Heavy Hitters

[staggs65]

Not to get this too far off the clutch kit thread but do the LE's have smaller drivers than the SE? I had my skid and track out yesterday and noticed my tunnel protectors have quite a bit of rubber on them up front with the 1.25 track. That will definitely scrub some speed

 

[Studroes144]

I want to be able to cruise down the trail at 70 and not have to be to the bar lol. I'm at about 8900-9000 wide open...will not pull over 85mph wide open on trail

That's how my buddy's cat 7000 is, rpm is great at wide open but dead in its tracks once you get around 85, his has the same 21/49 gearing. His too is wound right up all the time and is terrible on gas because of it.

 

[Eighty8LE]

That's how my buddy's cat 7000 is, rpm is great at wide open but dead in its tracks once you get around 85, his has the same 21/49 gearing. His too is wound right up all the time and is terrible on gas because of it.

Talking with TD Max he changed his upper gear to the 24 and left the 49 the same. I think this would at least help my fuel mileage ? I Don't mean to hijack this thread....I do have the big venom kit lol

 

[cannondale27]

Sounds about right. You can bring it down to about 8700 and it will still be fun if you have mods. The gearing will not change things much if you clutch it to get your 9100rpm at wide open. What it does seem to do is allow lower wide open RPM and cruising RPM without loss of speed. But doing the higher gearing and running lower max rpm does hurt your acceleration. Is only one real solution. MORE POWER!

 

[murdered141]

We are in the same truck. Lol. We will get you fixed up. Your about the same distance from both of us.


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Sounds great, let me know when and where, I can meet anytime, got all winter off .

 

[SnoNinja]

Here is where I'm at after some tuning over the base Big Venom setup.

15 LTX-LE (1.6 cobra).
Sandale can. No other engine mods.

48g Heavy Hitters with 3.3 in the heel, 1.3 in the middle, and 4.2 in the tip. TP blue secondary spring wrapped 70. Stock primary (blue silver blue) with glide washers each side. RPM is 8900 to 9000, but I finally got it off the hard rev limiter. Next step will be adding a touch more in the tip to get it off the soft limiter midrange and let it pull into soft limiter at higher speed. I haven't had a long pull on this setup yet but I suspect soft limiter will be retarding timing making it difficult to build top end speed.

 

[murdered141]

Here is where I'm at after some tuning over the base setup Big Venom set up.

Stock 15 LTX-LE (1.6 cobra).
Sandale can. No other engine mods.

48g Heavy Hitters with 3.3 in the heel, 1.3 in the middle, and 4.2 in the tip. TP blue secondary spring wrapped 70. Stock primary (blue silver blue) with glide washers each side. RPM is 8900 to 9000, but I finally got it off the hard rev limiter. Next step will be adding a touch more in the tip to get it off the soft limiter midrange and let it pull into soft limiter at higher speed. I haven't had a long pull on this setup yet but I suspect soft limiter will be retarding timing making it difficult to build top end speed.

I don't have a scale to weigh, can you refer to which bolt, washer and set screw your using, I am running very similar setup, 15 ltx dx, 1.6 ice cobra, sandales can and ulmers intake but no fuel controller yet, waiting for more feedback on the evo reflash.

 

[SnoNinja]

I don't have a scale to weigh, can you refer to which bolt, washer and set screw your using, I am running very similar setup, 15 ltx dx, 1.6 ice cobra, sandales can and ulmers intake but no fuel controller yet, waiting for more feedback on the evo reflash.

You should have gotten a book with your kit that lists what each screw and washer weighs for reference. I am 3/4" set screw in heel, 3/8 head aluminum with one thin washer middle, and 7/16 head steel in the tip. I will be adding more weight in tip to bring rpm down a bit more, and will post setup once finalized.

With intake, you will likely need more weight than I will, so I would set it up with at least one thin washer in the tip as well. You might even need to go more in the middle and tip to get your rpm down. I want to shift 8700 - 8800 then climb slowly to 8900 - 9000 as I gain top speed.

Look through the tuning guide that was included with the weights. It will tell you what the effects of various weight placements are. Once you get the total weight close, the you can fine tune weight placement to get as close to perfect for your riding conditions.

 

[4StrokeAddict]

Got on the sled last week with the little ice storm in Detroit. Only did about a mile, but it was enough to make some conclusions. The clutching is awesome over factory. The ability to crawl and back shift is much improved. I did push it a bit but didn't have enough room to open it up for any length. Can't wait for my first real ride to stretch her legs... Probably in 2 weeks.

 

[murdered141]

You should have gotten a book with your kit that lists what each screw and washer weighs for reference. I am 3/4" set screw in heel, 3/8 head aluminum with one thin washer middle, and 7/16 head steel in the tip. I will be adding more weight in tip to bring rpm down a bit more, and will post setup once finalized.

With intake, you will likely need more weight than I will, so I would set it up with at least one thin washer in the tip as well. You might even need to go more in the middle and tip to get your rpm down. I want to shift 8700 - 8800 then climb slowly to 8900 - 9000 as I gain top speed.

Look through the tuning guide that was included with the weights. It will tell you what the effects of various weight placements are. Once you get the total weight close, the you can fine tune weight placement to get as close to perfect for your riding conditions.

We are setup almost identical, except I already have the thin washer in the tip, seem to be at the rpm you specified, what is 70, I am assuming it's the spring wrap,what # in the secondary and helix.

 

[Alsim]

We are setup almost identical, except I already have the thin washer in the tip, seem to be at the rpm you specified, what is 70, I am assuming it's the spring wrap,what # in the secondary and helix.

6-1

 

[murdered141]

That's where I am at, wondering why I am banging off rev limiter 0-40 mph when I loose traction.

 

[Alsim]

That's where I am at, wondering why I am banging off rev limiter 0-40 mph when I loose traction.

You should tried 6-2 or 6-3 but maybe affect a little on top end...... loose limiter strap for better transfert to improve traction

 

[shagman]

That's where I am at, wondering why I am banging off rev limiter 0-40 mph when I loose traction.

Your hitting the limiter because you loose traction. Look at it like a car. When you spin on ice your RPM's increase. You can't let off quick enough to stop it from happening. How are RPM's otherwise.


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[cannondale27]

Mine can be spun without banging rev limiter and so can Phazer. When it's right it should not hit limiter unless airborne.