Votblindub
Veteran Member
So, if my projected figures are ~450-475, I should shoot for a 600-650 rating on a clutch to daily it?
Sorry another thread, but will a Stage II SB hold the torque I will be making!
- Thread starter turbovan+tdi
- Start date
yes
as clutch heats torque capacity goes down
as clutch wears torque capacity goes (briefly up, then) down
too much clutch will bog engine on hard launches, not enough clutch will slip and commit suicide
I'd err to the side of too much clutch
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WildChild80
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First drive on the SB stage 2 E and I'm amazed...
When I got the transmission off, I found hardware store bolts holding the pressure plate on except for one that was rounded off beyond recognition...And also very colorful wear surfaces...There was some blue rings and some red looking rings...
Also it was a DMF and it had play in the roataion with no resistance as in an inch or 2 or rotation at the rim.
The pedal is much lighter, it starts easier and makes less noise. I'm really liking the first 40 miles soo far
It engages soo smooth
When I got the transmission off, I found hardware store bolts holding the pressure plate on except for one that was rounded off beyond recognition...And also very colorful wear surfaces...There was some blue rings and some red looking rings...
Also it was a DMF and it had play in the roataion with no resistance as in an inch or 2 or rotation at the rim.
The pedal is much lighter, it starts easier and makes less noise. I'm really liking the first 40 miles soo far
It engages soo smooth
andy2
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This assumes that you don't want to change your clutch out within 3-5 years for example while working it hard.
It mostly depends on driving habits.The SB stage 2 endurance will likely hold well for over 90% of the TDI users if they don't have an LSD and/or are able to destroy 3rd gear in the 02J and/or are able put combustion pressure into the cooling system.
WildChild80
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I think I may want to add an LSD down the road but it'll be a while before I'm ready to pull the tranny again...It didnt go well for me...Partly because I was sick and exhausted and my helpers disappeared all the time...
What should I expect out of a car with 293k with Colt stage 2 cam, S7 turbo, upgraded SMI, 2.5 charge pipe, 3 inch turbo back and an 11 mil IP
It does have a Charlie tune but it was before I found my 11 mil IP...
YES I need an intake but I have plans in the works for one but no execution yet...
What should I expect out of a car with 293k with Colt stage 2 cam, S7 turbo, upgraded SMI, 2.5 charge pipe, 3 inch turbo back and an 11 mil IP
It does have a Charlie tune but it was before I found my 11 mil IP...
YES I need an intake but I have plans in the works for one but no execution yet...
IndigoBlueWagon
TDIClub Enthusiast, Principal IDParts, Vendor , w/
Stock 5 speed injectors? If so fueling is your limitation. Maybe 135-140 HP, 230-240 Torque.
WildChild80
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1019s flow 3
IndigoBlueWagon
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People will throw out numbers, but the only way to be sure is to get it on a dyno.
WildChild80
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Yeah, I'm hoping for 300 ballpark to the ground...I've seen some similar builds make low 300s but I don't know if it was a pink fuzzy glove dyno or a heartbreaker... Corrected or uncorrected...
ft/lb is always at the crank
if it were at the wheels it'd be something more like a thousand ft/lb in fourth, or 3-4 thousand in first
WildChild80
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Lol, you're the first person in 37 years that I've ever heard say that...You realize 4th is 1:1 right...So if I out 1000 to the ground you'd only add 7 or so percent for crank numbers...
You subtract between 5 and 10 percent to figure what you are putting to the wheels...
You subtract between 5 and 10 percent to figure what you are putting to the wheels...
Then take into account the ring and pinion ratio... 3.9x for us iirc
WildChild80
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So when you do a dyno pull what 2 numbers do they give you? How and what? And what gear is it in?
4th is .972 and r&p is 3.389
torque is a meaningless number as far as scoot goes anyways, no time base
WildChild80
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I don't know what scoot is but acceleration is directly affected by TQ...
This is why I don't get on forums anymore... Idiotic posts...
Sorry for thread jacking too
turbobrick240
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He's right that it's torque and rpm that makes power. 400 ft-lbs at 100 rpm is not going to get you anywhere fast. 400 ft-lbs at 4k rpm is another story.
WildChild80
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Rrusse11
Veteran Member
Andy2:
"It mostly depends on driving habits.The SB stage 2 endurance will likely hold well for over 90% of the TDI users if they don't have an LSD"
So my upcoming auto>manual swap, with a Pelonquin just installed, will be harder on the clutch? Less slip in the diff, more pressure on the drivetrain?
Makes sense, didn't consider that side effect.
Got a used SMF clutch going in, not much use, possibly a VR6, got that with the package deal on the swap kit.
Maybe I'll hold off on going for the DLC 520s and tweaking the tune to Stage 2.
Lol, doubt it. Down the rabbit hole of upgraditis I go,,,,,,~~~~~~~~~~~~ waving my wallet.
"It mostly depends on driving habits.The SB stage 2 endurance will likely hold well for over 90% of the TDI users if they don't have an LSD"
So my upcoming auto>manual swap, with a Pelonquin just installed, will be harder on the clutch? Less slip in the diff, more pressure on the drivetrain?
Makes sense, didn't consider that side effect.
Got a used SMF clutch going in, not much use, possibly a VR6, got that with the package deal on the swap kit.
Maybe I'll hold off on going for the DLC 520s and tweaking the tune to Stage 2.
Lol, doubt it. Down the rabbit hole of upgraditis I go,,,,,,~~~~~~~~~~~~ waving my wallet.
rofl
units are hard
ft/lb has no time base
you can make infinite torque by hand
but hp, an adult man can make maybe 1/8hp or so
Fix_Until_Broke
Top Post Dawg
This is the best summary "answer" to the "what clutch should I use" related questions in this thread.
The comment about being able to spin the tires is true for 1st and 2nd gear without an LSD, but it's really (deceptively) easy to apply 300 ft-lbf of torque to a clutch in 4th or 5th gear just by leaning on the throttle.
I have not heard much about damaging 3rd gear, but there are several threads about losing the splines out of 5th gear in the 02J. Seems to be luck of the draw, but if you're an unlucky one, you're the one unfortunately.
If you're regularly making and using 300 ft-lbf of torque from a 1.9 liter and don't have a "big" (GTB2260 or bigger) turbo on it, you're going to need ARP studs and stronger connecting rods at some point as well due to peak cylinder pressures being so high.
How you drive and tuning plays a big role in this as well - most tunes are relatively "soft/smooth" and don't run a lot of timing advance so you typically end up over 2200 RPM before the torque maxes out for your given throttle input and most people let the engine wind up to 3-4k RPM when they're really getting after it which is much easier on everything (clutch, rods, head gaskets, etc).
As far as the torque vs power discussion - go put your torque wrench in a vice and apply whatever the max torque you can set it to and pull on it. There - You've made xxx ft-lbf of torque and zero power, which one is more important?