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something broke either driveshaft or something to do with swingarm?

2522 Views 9 Replies 6 Participants Last post by  Thunderbolt
hi everyone, i recently had new engine and supercharger and clutch and all the other goodies put in my slingshot from DDM about a month ago.

it was running fine except for a startup issue when cold it would stall and have to restart, and sometimes a sputter around 5-6,000 rpm while shifting 2-3 or 3-4 lag..

the startup issue seem to clear up..

but was out the other night and while just shifting from neutral to 1st there was a clank noise thought maybe just released clutch to soon. anyways tonight in narragansett ri

driving down the street heard another noise and then all of a sudden started to get a wobble sensation in the rear wheel and vibration right where i rest my elbow in slingshot for shifting.

tried shuttting engine off and it was still there.. had to have it towed on flatbed (nightmare lol. 4.5 inches off the ground...

now have to bring to moms in foxboro in morning anyone else having similiar problems?. ran fine before mods but wondering is there a week link?.
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Just a guess... You probably broke the angle drive where it connects to the drive shaft.

Not a common issue. Might have something to do with the power you have.
yah i pulled on them last night, not that old lmao.. but seriously they seem tight. and the sound was coming from the transmission column you can hear it. right smack in the middle of the slingshot, and a little whining in the rear wheel.. almost as if emergency brake was catching..

i had DDM install the big brakes all away around so not sure, also had them put in welter's performance jeffs new exhaust 2.5" underneath that needs a new transmission mounts? new engine with all performance parts, new oil cooler, radiator, 10psi boost supercharger with racing clutch, going to get towed to polaris slingshot dealer today and will have to go from there. hopefully it is a CV joint or universal? if it is is there a aftermarket?. because this was suppose to be bulletproof. i only have around 400 at crank and 315 i think at rwhp.
i remember my 2000 plymouth prowler all custom 3.5 bored out to a 4.0 kenne bell supercharger, water-injection with methanol, racing transmisson, engine completely redone and all racing performance parts this was bullet proof with suspension, brakes etc.. on and on. and on the dyno (625hp at flywheel) we tore the stock driveshaft in half.. literally.. lol
so had to put a custom driveshaft in.. never had a problem after that

is the driveshaft CV or universal a big fix? and or warranty?
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hi everyone, i recently had new engine and supercharger and clutch and all the other goodies put in my slingshot from DDM about a month ago.

it was running fine except for a startup issue when cold it would stall and have to restart, and sometimes a sputter around 5-6,000 rpm while shifting 2-3 or 3-4 lag..

the startup issue seem to clear up..

but was out the other night and while just shifting from neutral to 1st there was a clank noise thought maybe just released clutch to soon. anyways tonight in narragansett ri

driving down the street heard another noise and then all of a sudden started to get a wobble sensation in the rear wheel and vibration right where i rest my elbow in slingshot for shifting.

tried shuttting engine off and it was still there.. had to have it towed on flatbed (nightmare lol. 4.5 inches off the ground...

now have to bring to moms in foxboro in morning anyone else having similiar problems?. ran fine before mods but wondering is there a week link?.
You might want to check your rear wheel bearings - a common problem.
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if it is wheel bearings. then is the a premium upgrade? for them
if it is wheel bearings. then is the a premium upgrade? for them
Keep us posted on what you found.
Keep us posted on what you found.
It was loose lug-nuts on the rear wheel and a problem with the aftermarket rear brake caliper ......

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It was loose lug-nuts on the rear wheel and a problem with the aftermarket rear brake caliper ......

.
Glad you got it straightened out and back on the road.
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