My Mk4 buildup thread...

[99gti]

Hi guys, I could be wrong, but if you go with a lightened flywheel than torque will decrease due to a lighter spinning mass and vice versa, a heavier flywheel will increase torque, so a single mass flywheel of similar weight to the dual mass would not decrease the torque. I only bring this up because one of the first recommended mods when increasing HP figures for the 1.8T is to replace the dual mass fly as they don't like to much HP. And then increase the clamp force of the clutch.

If this info isn't correct, I would like to know as this would be one less thing on the mod list and could be oney spent else where.
Cheers Troy.

Hi Toy and welcome aboard.

I have been running the dual mass since I got the car and mine has had the works done for a car still running the standard turbo and I have never had a problem with it.

[h100vw]

Hi guys, I could be wrong, but if you go with a lightened flywheel than torque will decrease due to a lighter spinning mass and vice versa, a heavier flywheel will increase torque, so a single mass flywheel of similar weight to the dual mass would not decrease the torque. I only bring this up because one of the first recommended mods when increasing HP figures for the 1.8T is to replace the dual mass fly as they don't like to much HP. And then increase the clamp force of the clutch.

If this info isn't correct, I would like to know as this would be one less thing on the mod list and could be oney spent else where.
Cheers Troy.

The best reason for going to a single mass is the larger diameter plate you fit. The VR6 clutch is easy to get hold of too.
The single mass does make the drivetrain shunt a bit, when going on and off the throttle.

I would only go SM if you need the extra clamping force because you have got more than a stage 1 chip. ie You have fitted a bigger turbo. I think in a MK4 a std clutch would be ok with up to 230 crank HP. Unless you drive like a complete Muppet, it should last several years of driving easily.

[Golf Dvr]

Cheers for the info guys, i can now put this mod further down the list and move something else up to take it's place.

[h100vw]

Cheers for the info guys, i can now put this mod further down the list and move something else up to take it's place.

I would leave it until it starts to slip.

Mine went while backing a trailer up a steepish driveway. I managed to run it around for a week or so but it wouldn't have lasted a lot longer.

Certainly get the parts located, so you know the lead times you will need to apply. Golfloon has flywheels in std and lightened forms most of the time. A syd VR clutch will take 300hp if you are sensible.


Gavin

[SoVeReIgN]

Hi guys, I could be wrong, but if you go with a lightened flywheel than torque will decrease due to a lighter spinning mass and vice versa, a heavier flywheel will increase torque, so a single mass flywheel of similar weight to the dual mass would not decrease the torque. I only bring this up because one of the first recommended mods when increasing HP figures for the 1.8T is to replace the dual mass fly as they don't like to much HP. And then increase the clamp force of the clutch.

If this info isn't correct, I would like to know as this would be one less thing on the mod list and could be oney spent else where.
Cheers Troy.

Less rotating weight = more torque. You can't create torque by adding extra weight to the driveline.

All the dual mass/heavy flywheel does is make things smoother, engine changes less apparent. Ie - Light flywheel = Engine spins up faster + revs drop faster.

[Preen59]

Less rotating weight = more torque. You can't create torque by adding extra weight to the driveline.

All the dual mass/heavy flywheel does is make things smoother, engine changes less apparent. Ie - Light flywheel = Engine spins up faster + revs drop faster.

Correct. The rotating mass of the flywheel is just the same as the weight of the car. The engine has to drive it/make it move.

"More torque" is not the right term. The flywheel (when rotating) has stored rotational energy, the heavier the flywheel, the more stored energy, which means that it takes more effort to slow the flywheel, hence the "appearance" of more torque.

[Golf Dvr]

Correct. The rotating mass of the flywheel is just the same as the weight of the car. The engine has to drive it/make it move.

"More torque" is not the right term. The flywheel (when rotating) has stored rotational energy, the heavier the flywheel, the more stored energy, which means that it takes more effort to slow the flywheel, hence the "appearance" of more torque.

Sorry for the miss representation guys, the "appearance" of torque was what I was trying to get at, a motor produces "same" torque regardless of clutch flywheel setup, seat of the pants meter says there is more "torque" with a heavier flywheel.

[Mrk_Mickey]

Haha you put that well, Dvr.

Keep us posted Neil! I wanna see your crazy smurfy car go wossshkakakaka

[99gti]

Well - the LM's are back on and I think they look better. I have brought the rears in 5mm and pushed the fronts out 5mm. It looks much more even now and I'm pretty happy with it.

My new strut brace is in as well as my rear stress brace. I must say they look the dogs bolloks but I doubt I'll observe any realy bennefit for day to day driving. Track time they will be a great help but you can't do silly stuff like that on the streets.

I'll get some photos when it's day light again.

Oh yeah - I also got my BBS centre caps! They look much better with them on now. Big thanks once again to the boys from TCCA. The TST rear stress brace is a royal pain to fit and they did a tops job. thanks again guys!

[Treza360]

Well - the LM's are back on and I think they look better. I have brought the rears in 5mm and pushed the fronts out 5mm. It looks much more even now and I'm pretty happy with it.
My new strut brace is in as well as my rear stress brace. I must say they look the dogs bolloks but I doubt I'll observe any realy bennefit for day to day driving. Track time they will be a great help but you can't do silly stuff like that on the streets.
I'll get some photos when it's day light again.
Oh yeah - I also got my BBS centre caps! They look much better with them on now. Big thanks once again to the boys from TCCA. The TST rear stress brace is a royal pain to fit and they did a tops job. thanks again guys!

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[Preen59]

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^^^^^
What he said.

[Mrk_Mickey]

^^^^^
What he said.

^^^^^
What he said, about what that other guy said.

[99gti]

Yeah yeah yeah. I'll get shots soon.

Just a small update on the turbo conversion. I mentioned I'll be doing something different and now I can reveal it all.

The turbo is still a K04, but it isn't your normal run of the mill K04-001. It is infact a K04-023 wich is a fair bit bigger than the 001. For that reason, I will also need the S3 injecters, 4 bar FPR and 3" Maf from a TT225. It will basicly be an S3 engine with a K04 upgrade.

Getting this tuned has been one small hurdle as it's not a straight bolt on upgrade but Gavin (h100vw) our resident Custom Code outlet will be joining the pilgrims to make the voyage to holy Sydney to do some data logging and tuning once we get things all installed. It will be a stage 3 tune and I'm bursting at the seams to get it done.

My exhaust manifold is on it's way to me as we speak and then I just have a few odds and ends to source including a FMIC, oil return lines and coolant lines from an S3 before the installation begins.

I still havn't put my car on a dyno to date but I will do so before to show the difference made.

[Oneofthegreats]

Nice Neil.

Looking very forward to hearing how it all goes.

How much power are you chasing?

[Jarred]

This thing should be a hoot! Hopefully all goes well