possible to keep F1C under 10# w a 4.5" pulley?
12-26-2007, 02:11 PM
#1
Launching!
Thread Starter
iTrader: (3)
Join Date: Nov 2005
Location: Elk Grove Village Il
Posts: 298
Likes: 0
Received 0 Likes
on
0 Posts
possible to keep F1C under 10# w a 4.5" pulley? I will be installing a F1C on my stock bottom end C5 and was wondering if I could possibly keep the boost under 10# with a 4.5" pulley and a restrictor plate? I also have a G5X3 112 cam that I'm currently running which I hope will bleed off a little boost. I will be getting a forged motor eventually but wanted to hold off untill a year from now and then shoot for over 800rwhp. Thanks in advance!
12-26-2007, 02:42 PM
#2
Maybe if you keep it under 5000 RPM... I don't know how big the crank pulleys are on the C5 kits, but with a 7.65/4.25 combo on my regular F1, I see 15psi with a 224/232 .581/.595 114+2 cam. Plus, the f-body intake hat is way more restrictive than the C5 intake is to the head unit. Only way I see you being able to stay at 10# with an F1C is to keep the RPM's down. Even at 10# tho, you will be walking a fine line. Better have an ultra conservative tune and some meth would help as well...
12-26-2007, 03:52 PM
#4
8 Second Club
iTrader: (18)
Join Date: Oct 2002
Location: Waterloo, Ontario
Posts: 2,609
Likes: 0
Received 0 Likes
on
0 Posts
I will be installing a F1C on my stock bottom end C5 and was wondering if I could possibly keep the boost under 10# with a 4.5" pulley and a restrictor plate? I also have a G5X3 112 cam that I'm currently running which I hope will bleed off a little boost. I will be getting a forged motor eventually but wanted to hold off untill a year from now and then shoot for over 800rwhp. Thanks in advance!
Elvir-which blower bracket are you going to run?
12-26-2007, 05:15 PM
#5
Launching!
Thread Starter
iTrader: (3)
Join Date: Nov 2005
Location: Elk Grove Village Il
Posts: 298
Likes: 0
Received 0 Likes
on
0 Posts
I'm was going to run the stage II ECS bracket but now I'm not so sure since the largest pulley I can run on the stage II bracket is a 4.5" pulley. I might just have to get their stage I bracket unless I can find a for sure way to keep boost under 10# with the stage II. Either way I'm sure I can't go wrong but I just had my mind set on the stage II bracket. Maybe Chris and Doug could set me up with a few restrictor plates to experiment with.
12-26-2007, 06:47 PM
#6
8 Second Club
iTrader: (18)
Join Date: Oct 2002
Location: Waterloo, Ontario
Posts: 2,609
Likes: 0
Received 0 Likes
on
0 Posts
Elvir-with there new bracket the smallest pulley you can run is 4.25. I would just get there Stage 1-it works fine and I think they were selling them for like $600? I don't like the restrictor plates-if you restrict flow into the blower it can lead to belt slip.
12-26-2007, 06:49 PM
#7
FormerVendor
Join Date: Mar 2006
Location: Hell AFB
Posts: 1,540
Likes: 0
Received 0 Likes
on
0 Posts
If you need more midrange, crank that boost up
Trending Topics
12-26-2007, 07:04 PM
#8
Launching!
Thread Starter
iTrader: (3)
Join Date: Nov 2005
Location: Elk Grove Village Il
Posts: 298
Likes: 0
Received 0 Likes
on
0 Posts
Arun-have you chosen which head unit you will be running with your setup?
12-26-2007, 09:26 PM
#9
8 Second Club
iTrader: (18)
Join Date: Oct 2002
Location: Waterloo, Ontario
Posts: 2,609
Likes: 0
Received 0 Likes
on
0 Posts
Not sure yet bro-I have a F1R I'll try-then maybe and F1A-but I would like to try a F2M-that would be cool! then you never know-I may jump to the darkside and try a Ysi?
