Custom UIM Pictures?
03-12-10, 12:23 PM
#51
Every design is a compromise of some sort. Hogging it out accomplishes the same thing as a large plenum with a single throttlebody. On the stock setup the primary ports are only fed by 1 throttle plate while the secondaries by 2. It doesn't matter what the power level is. Once you max out flow through that plate, you have also maxed out flow through the primary ports. By hogging it out into one plenum you now have all ports being fed by the same amount of air which is what is in the plenum. The plenum in turn is fed by 3 throttle plates. The result, assuming you can tune it, is what is pretty much expected to happen. You lose a bit of low end power but gain top end. Although there are forced inducted engines that use stock manifolds and get very high horsepower numbers, don't assume they couldn't be higher with a bit of playing around.
03-12-10, 12:36 PM
#52
4th string e-armchair QB
iTrader: (11)
Join Date: May 2005
Location: North Bay, Ontario
Posts: 2,745
Likes: 0
Received 0 Likes
on
0 Posts
I'm just not sure the benefits outweigh the downfalls. Marco from ForceFed made around 900 whp on a stock S5 LIM/UIM/TB. I would have been interested to see the difference by switching them out, but if this level is possible, why not maintain the low end power of the stock UIM?
03-12-10, 07:48 PM
#54
Cool! I got the pic from SEAN (A-spec). I ended up doing the same, cutting it down the middle-gutting and cleaning up the runners- then rewelded back together. I have been very happy with it. I used the RE LIM also and port matched the runners to the irons.. The RE primary's are WAY larger.
03-12-10, 08:00 PM
#55
Rotary Enthusiast
custom LIM
i got this LIM big runners, fits FD engine, anybody interested PM
also pix of my 10yrs ago plenum with AI, inside a nice shaped air horn fitted to the tri-shape TB
also pix of my 10yrs ago plenum with AI, inside a nice shaped air horn fitted to the tri-shape TB
03-13-10, 10:12 AM
#56
Rotary Freak
Join Date: Dec 2001
Location: chandler, AZ
Posts: 2,402
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by zinx
Where is the secondary fuel rail? Did you buy the the flange or make it?
Originally Posted by Chaotic_FC
are there velocity stacks inside the mani?
I'm planning on building a new manifold and making some changes...
09-07-10, 09:19 PM
#58
Living life 9 seconds at a time
iTrader: (2)
Join Date: Feb 2001
Location: Abingdon, Md
Posts: 6,541
Likes: 0
Received 0 Likes
on
0 Posts
Actually yours looks like mine, lol. Thats a really old pic. Long since sold and gone off the car.
Im running a RXparts.com setup now with a semi pp like the PR race cars.
Im running a RXparts.com setup now with a semi pp like the PR race cars.
09-08-10, 04:46 PM
#60
Rotary Freak
Join Date: Nov 2001
Location: trinidad and tobago
Posts: 2,715
Likes: 0
Received 0 Likes
on
0 Posts
09-08-10, 04:48 PM
#61
Rotary Freak
Join Date: Nov 2001
Location: trinidad and tobago
Posts: 2,715
Likes: 0
Received 0 Likes
on
0 Posts
Thread
Thread Starter
Forum
Replies
Last Post
Frisky Arab
2nd Generation Specific (1986-1992)
13
08-18-15 05:30 PM
