RSS 996 Top Seller | Lightweight Underdrive Crank Pulley # 601 | In Stock
08-08-2019 | 03:02 PM
#61
Rennlist Member
Joined: Dec 2016
Posts: 8,053
Likes: 810
From: Kauai
Less parasitic loss so more power to the transmission and beyond. Claims of 5hp from some vendors - not an increase in power from the engine, but more to the wheels. It is also supposed to prevent spinning the pump too fast causing seal damage on cars that are raced or driven at high rpms. These are just me repeating vendor claims. I have no way to prove any of it.
08-08-2019 | 04:03 PM
#63
Captain Obvious
Super User
Super User
Joined: Aug 2003
Posts: 22,846
Likes: 340
From: Cambridge, Ontario, Canada
It's a good rule of thumb to take what a vendor claims and cut it in half and then hope that maybe you will actually see that once you install their product. BUT let's say you do see 5hp (at the flywheel, not the wheel) at near redline. I guarantee you will not feel that in the seat of the pants. 5hp at the flywheel is unnoticeable on a 300hp engine. It can also easily be just a standard deviation between tests and has nothing to do with the product. to me 5hp is pretty much statistically insignificant. You will get more performance gains if you just drive with your gas tank half empty all the time.
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Gingerman (09-18-2019)
09-18-2019 | 02:01 PM
#64
Thread Starter
Former Vendor
Joined: Nov 2015
Posts: 593
Likes: 8
BACK IN STOCK!
RSS 996 Top Seller Lightweight Underdrive Crank Pulley # 601
Best Bang for the Buck upgrade for you Porsche!
Unleash extra power, improve cooling efficiency, avoid boiling the power steering fluid and achieve better throttle response with the # 601 Crankshaft Underdrive Pulley.
The RSS Lightweight High Strength Underdrive Pulley is made from 6061-T6 aluminum. Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator which is a must for any street or track enthusiast Installation wrench included. Fits all Porsche models EXCEPT 2.9L 3.8L, DFI and Turbo/GT3. We recommend using the appropriate length belt RSS # 6PK which can be purchased separately.
http://roadsportsupply.com/search.ph...ection=product
RSS 996 Top Seller Lightweight Underdrive Crank Pulley # 601
Best Bang for the Buck upgrade for you Porsche!
Unleash extra power, improve cooling efficiency, avoid boiling the power steering fluid and achieve better throttle response with the # 601 Crankshaft Underdrive Pulley.
The RSS Lightweight High Strength Underdrive Pulley is made from 6061-T6 aluminum. Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator which is a must for any street or track enthusiast Installation wrench included. Fits all Porsche models EXCEPT 2.9L 3.8L, DFI and Turbo/GT3. We recommend using the appropriate length belt RSS # 6PK which can be purchased separately.
http://roadsportsupply.com/search.ph...ection=product
09-18-2019 | 03:26 PM
#65
Rennlist Member
Joined: Oct 2014
Posts: 6,795
Likes: 1,169
From: L.I. NY
My experience is that it allows the engine to "spool up" quicker - so it feels/is more responsive - throttle blibs are quick and "powerful" (probably not the right word but best I can do at the moment). As for a 5hp gain, I have no way to prove or disprove that claim but I generally default to less if anything is more realistic.
09-18-2019 | 08:09 PM
#67
Burning Brakes
Joined: Jul 2018
Posts: 1,100
Likes: 127
From: Casselberry Florida
My butt dyno is extremely accurate. I calibrate it every morning. My test results indicate no changes. None at all. I don't regret buying it. But if your car is a street car like mine. It would say pass.
