crank pully
23 December 2009, 10:00 PM
#1
crank pully
ok so i jst got my car back from the garage afteer new timing belt oil plugs etc etc, and the mechanic told me the crank shaft pulley had nearly fell off! he reckoned anova 10 miles and.....well boom! so i was looking at a japspeed lightened pully 49quid and its gives 9bhp, is this BS and should i get an oem from subaru or is it free horse power? lol
23 December 2009, 10:12 PM
#2
Scooby Regular
iTrader: (67)
Join Date: Oct 2007
Location: w,yorkshire
Posts: 4,061
Likes: 0
Received 0 Likes
on
0 Posts
i think 9bhp from just a crank pulley is a little bit over the top.they do make a slight difference in bhp but i would have thought its mainly for better throttle response.
23 December 2009, 11:48 PM
#7
Scooby Regular
iTrader: (1)
Join Date: Apr 2005
Location: Under my busted-a$$ scooby ... again :(
Posts: 485
Likes: 0
Received 0 Likes
on
0 Posts
lightened moving parts will usually improve throttle response but there's a trade off - lighten the part, reduce the inertia it can maintain naturally. Your engine will have to work that little bit harder to maintain a top speed which results in more fuel being used. Thats part of the theory anyway. Reality is that it's doubtful that a lightened crank pulley would make a significant difference one way or another. As for 9bhp ..... i'm with carpboy - BS!
Does it look funky though?! Always a winner in my book if it looks funky
Does it look funky though?! Always a winner in my book if it looks funky
Trending Topics
24 December 2009, 10:56 AM
#8
lightened moving parts will usually improve throttle response but there's a trade off - lighten the part, reduce the inertia it can maintain naturally. Your engine will have to work that little bit harder to maintain a top speed which results in more fuel being used. Thats part of the theory anyway. Reality is that it's doubtful that a lightened crank pulley would make a significant difference one way or another. As for 9bhp ..... i'm with carpboy - BS!
Does it look funky though?! Always a winner in my book if it looks funky
Does it look funky though?! Always a winner in my book if it looks funky
Fits all Models 96-01
Features:
* Machined from lightweight 6061-T6 billet aluminium.
* CNC machined with tolerances to within +/- 0 .001 Inch.
* Real BHP and torque gains across the entire RPM range.
* Up to 9BHP can be gained by fitting this pulley.
* Tests show that an average of 2.7 HP is gained from every pound of weight that is reduced from the crankshaft.
* Supplied in a natural polished aluminium finish.
* Requires new smaller belt.
* Kit comes complete with crank pulley.
Fits Subaru Impreza all models 93 - 06 Inc non-turbo models.
well if its all BS thing is i need 1 anyway and it does look funky
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM