4.5 Kg Alloy Flywheel - yes or no?
 

Am getting uprated Helix clutch fitted, so do I get lightweight fly wheel or stick to OE one ? Have done a search on forum, but noneone gives a straight answer. Just want to know if it is worth doing or do cons outweigh the pros?

Cheers Ade

i think its worth it, but 4.5k would be too light on a road car imo. there are others who supply 6k ones i believe, it would be best to talk to one of the big tuners (RCMS etc) and see what their response is?

I've got a 4.7 kg one on my type r, didn't know until I changed the engine earlier this year. I carried it over to my new engine and the only downside I've ever noticed is I have to give it absolute death off the line at the drag strip or it bogs down.

I'm afraid I can't give you a before and after comparison but it certainly liked to rev on both motors.

Lighter the Flywheel, the less Torque you will have:( A lighter one will make a car rev like f**k:lol1:

put the 4.5kg on mate, makes the car a lot light to drive, and revs a lot quicker, the only difference is you have to rev it a LITTLE more when you set off, trust me ive had 3 of them on 2 cars;)

A flywheel does not effect engine output.

It just makes the throttle response better.

5k+ for me or bog city. If you put it on the strip full blown launches are the only way to go.:thumb:

on both of mine launch nicely @ 3500rpm ask anyone that went to sso 1/2/3 :);)

you will be ok round town as you dont launch at 7k do you:)

and on the strip if you need 5krpm + or your bogging down then you need to look at the ecu map;) not the flywheel

I've seen your car launch at elvington and it goes extremely well. Do you slip the clutch? The only method that works for me is full attack mode. Except when I'm on my way to tesco's.

As for my map, I'll raise your comments with Andy F.:)

get andy to drop the peak torque;) no i dont slip the clutch,(just bring it up to biting point bring the revs up to 3500rpm then step off the clutch:D) my peak torque is 3600rpm ISH

Got a 4.2kilo flywheel on mine and it's one of my best mods, go for it :thumb:

I swapped to a Fidanza 4.2KG flywheel and it was a really worthwhile mod for me. The car revs a lot quicker and pulls much more strongly through the gears. It takes a couple of drives to get the launch technique right but it is exactly like getting into an unknown car....you soon learn to compensate. I never have any trouble with bogging down and I use the same method as scooby-si.