[SpeedRacer64]

Not I that I own a tiptronic...but has anyone heard of modifying the torque converter...”loosening up the stall speed” Back in my American Muscle days...one of the first things was to purchase a converter with a higher stall speed?



On another note...a lot of talk of performance...and not one mention of NOS...anyone been down this path....would look crazy cool with stainless steel tubes all bent and plumbed into the manifold?

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[968gene]

[quote name='SpeedRacer64' post='46371' date='Jan 26 2008, 02:32 PM']Not I that I own a tiptronic...but has anyone heard of modifying the torque converter...”loosening up the stall speed” Back in my American Muscle days...one of the first things was to purchase a converter with a higher stall speed?



On another note...a lot of talk of performance...and not one mention of NOS...anyone been down this path....would look crazy cool with stainless steel tubes all bent and plumbed into the manifold?[/quote]





You would completely ruin the car's street-worthiness by changing the torque converter...

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[FRporscheman]

I think NOS would be cool. But most 968 owners would consider it ricey. It's no different than a turbo except a turbo is more complicated and unlimited.



I have no idea how a torque converter works or what high stall means.

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[flash]

it's very different than a turbo, and has a lot of complications - the new systems are a LOT better at working around them than the old ones were, but still there are things to think about, not the least of which on our car is how it affects the dual resonance pulse



the biggest one for me is the need to get the bottle filled, and the place to put the bottle



could be cool, and i'd like to see somebody play with it, but having blown up a few engines over the years using bottles, i think i'll pass on this gas, and let somebody else do it

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[SpeedRacer64]

[quote name='flash' post='46415' date='Jan 26 2008, 09:43 PM']it's very different than a turbo, and has a lot of complications - the new systems are a LOT better at working around them than the old ones were, but still there are things to think about, not the least of which on our car is how it affects the dual resonance pulse



the biggest one for me is the need to get the bottle filled, and the place to put the bottle



could be cool, and i'd like to see somebody play with it, but having blown up a few engines over the years using bottles, i think i'll pass on this gas, and let somebody else do it[/quote]



I’ve given this a fair amount of consideration and will most likely proceed with installing a NO system and yes you’re right they’ve come along way from when I used them in the mid 80’s. Today’s can be control electronically or by the old fashion button. Personally...I like the button. Placing the bottle in the spare tire compartment seem the likely spot. For me I would choose the expose the lines as opposed to hiding them underneath the intake for one reason only...it would look cool!



A torque converter http://en.wikipedia.org/wiki/Torque_converter for a performance application has the fins modified to allow the engine RPM to slip if you will...to a higher operating range...this allows you to places the engines house power and torque curve for maximum effect...typically used for drag racing.

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[FRporscheman]

Flash, you're right it is very different in application and installation. What I meant was it produces the same end effect.



It might screw up the dual resonance effect, it might not. A turbo mated to the stock intake (someone in... Estonia? did it) would definitely upset the dual resonance. But I don't think it's a huge problem, if DR stops being a benefit, if there is something more potent to take its place. <img src="/forum/images/smilies/968/wink.gif" class="smilie" alt="" />



BTW - I like the new main page!

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[flash]

no worries - yeah, it's similar in that regard, though it comes on a lot earlier than a turbo



i'd love to see somebody play with this, and if i can be of any help, i'm more than happy - i'd even be interested in writing an article about it

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[SpeedRacer64]

[quote name='flash' post='46583' date='Jan 30 2008, 11:43 AM']no worries - yeah, it's similar in that regard, though it comes on a lot earlier than a turbo



i'd love to see somebody play with this, and if i can be of any help, i'm more than happy - i'd even be interested in writing an article about it[/quote]



As soon as the repairs are complete...it is one of the many changes for 2008. I’ll document the best I can...the larger issue at this point is finding a shop with a dyno to record the performance. Come to think about it I’ll ask RUF here in Dallas if they have one...I’ll keep you posted.



I’ve read is some past post of a concern with main bearing failure...I don’t recall which bearing is more susceptible...is there an inherent oil starvation issue feeding the main bearings? If so...what method is use to increase bearing longevity.



Depending on jetting....horse power increment of approximately 100...150 and 200 can be achieved. The later of course requires an additional fuel supply system to aid in reducing a lean mix.



Anyone running any secondary fuel systems...who and how did you proceed with the install?



Anyone running an MSD ignition system or comparable...did you install inside or in the engine compartment?



Tks LuKe

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