Leempolo3

Any issues? What kind of power are you making? IAT's? Already have the 77mm SC pulley and am considering a 168 CP in the near future.

Ls1toAMG

Well you will need supporting mods. I think it pretty close to running a 192.5 mm crank pulley. Headers injectors TB and atleast a trunk tank or killer chiller.

Shirvaan

I have a 77mm and ordered a 172mm cp. will be installing as soon as it lands

C32owner

Did you get round to installing this yet? What's the outcome / results. I just picked up a 170 crank and would like to install as well with the 77 upper.

03svtkiller

I was just talking to my buddy about this combo today 168/77 he thinks it's too much it should make right around 17psi. Would love to hear from someone who is running this combo, as I my self am planing on going this route if it's not too much. I figure the combo should be close to a 195mm CP which I had on my previous E55 and biggest issue was keeping heat in check.

C32owner

I don't know why the guys are saying that a 195 is the limit.. I know a couple 55's out here running 210 and 205 crank pulleys. Not sure of the supporting mods but i guess they got them all...

03svtkiller

I don't think it's the limit, I think ppl are afraid of blowing their engine and pushing anything over 17psi will put you in limp mode. When I ran the 195 I had KC, engine bay tank, methanol and a little 50 shot and heat was never an issue unless it was stop n go traffic.

Ls1toAMG

When do you drive your car. Is it a daily? Your going to go into limp mode with that combo. It's another lb of boost of a 195. Problem is you well into the yellow level boost and supercharger rpm wise. It's a risk for sure without killer chiller or meth it will be a big power loss. I would stick with a 168 max. If you don't have a really good tuner and dyno tune it I wouldn't even think about it. You need upgraded tb and injectors also

Honestly I would talk to Shardul and Exotic Metal about it. As much as I like to think I know, they know a hell of a lot more

cnterline

Forget that combo 🔥🔥💥💥💣

03svtkiller

Don't you run a 180/84 combo? If so that combo is not much different than a 168/77

Shirvaan

installed my 172mm pulley with 650cc injectors at the same time.


Moved from 379kw 780nm to 407kw with the nm not being available due to issue on the dyno.


Car pulls very strong with the traction control fighting even harder than before.


The hiccup in first gear is allot more now which is irritating especially when someone else who does not know the car drives it

cnterline

168/84 approx 2000 rpm diff

C32owner

Awesome man some nice gains brother. I think you in RSA is that right? Where abouts, just trying to figure your elevation. Also was it necessary to go for 650cc injectors? Or is 550 enough for that combo

C32owner

Yes it's kind of a daily driver I suppose. I'm at serious altitude so even with the combo I won't be near the 17psj limit.. I run the 77mm upper and still only get 9psi boost, so think I am safe there

03svtkiller

My bad must of had you confused with someone else. I know a few members on here run the 180/84 combo, i guess that's the only way to go since no one has tried the 168/77 yet.. Oh well

C32owner

Huh? Shirvaan up top just posted he is running the 172/77 combo...

03svtkiller

try it let me know how you like it.

JoeNobody

Why so huge? Jumping from 180mm to roughly 195mm.

Do you have meth, killer chiller, or trunk tank planned?

What other mods?

Shirvaan

I'm at the coast in Cape Town. 550cc would of been ok but I'm running a 50/50 ethanol mix so decided to go bigger just incase.

Ls1toAMG

You are up there.seems you would need more air. ever consider 90 mm tb?

Exotic-metal55

I run a 77mm and custom 160 mm crank pulley at the moment for daily driving and with a 3000 stall. 77/160 is equal to a 185mm crank pulley ish and is a nice aggressive street /daily driver set up.

I have run 185mm and 84mm upper and 190mm with 84mm, 195/84mm upper and 210mm just crank pulley. These combos , I ran 725cc plus injectors, duel inline bosch fuel pumps, ported heads, huge headers, forged pistons and great cooling mods.

55Jeff

I am torn between deciding as well, I currently have the 83mm pulley, and don't know if i should go to a 172 or 180 crank or 77mm clutched pulley and leave the crank alone, or just go FSP

Decisions decisions....

The Fly 1

any updates?

MACEDON

180mm crank and stock SC

Heat is pretty bad, I could barely do one pull to about 70mph before the supercharger kicks out at 180F

A PLM cooler has helped that, easy install. You already have the equivalent (77mm), I would just leave the car alone unless you're interested in spending a lot of time dicking around with cooling. Past splitting/upgraded heat exchanger your options become: meth injection, big trunk tank, and killer chiller.

MACEDON

Crank would give you the following benefits:
-Your crank pulley might need changing anyway, now would be a good time to do it
-You get a larger surface area for the belt to grip=less slip

Crank gives you the following disadvantages:
-Costs a lot
-Tough to find a shop that knows what they're doing
-Seen people needing to pin their crank pulleys

That being said I have an ASP 180mm with a stock blower setup, green belt, and I love it. no need for a belt wrap kit adding unnecessary tension just to get a grip going.