can't sleep.....had an interesting FI idea
08-01-2006, 04:22 AM
#1
can't sleep.....had an interesting FI idea
take 2 head units of your choice, be it twin turbos, twin blowers, twin centri's, whatever.............instead of using a common plenum, set it up in banks or sides. For simple math, lets say we have a 400 ci motor, or 2 200 ci halves......since I'm not very familiar with turbo sizing vs. ci displacement .......let's take something old, cheap, and plentiful........2 M90 Eaton blower head units, 1 for each 200 ci side. Let's say we go MAF-less for ease of intake routing.........(thinking out loud).....do we keep the exhaust systems seperate? or do we merge them............any other issue's we may need to consider?
08-01-2006, 07:28 AM
#3
TECH Senior Member
iTrader: (6)
Join Date: Jul 2005
Location: Decatur, AL
Posts: 5,257
Likes: 0
Received 0 Likes
on
0 Posts
A true positive displacement blower like a roots style would be the best I feel, that way you know each side is getting the same amount of air. If you use a turbo and you have a miss on one cyl then the turbine on that side won't be pumping as much air. Regaurdless of which type of FI you go with I still feel you need at least a balance tube between each intake bank.
On another thought, the best set-up I can think of would be a supercharger and turbo. I think this has already been done, but have a turbo pushing all the time and have a clutch on the supercharger (maybe an electro one like on a a/c compressor) and have the supercharger disengage at around 3k rpm for example to take care of turbo lag. I'm thinking Mercedes or some company has at least toyed with the idea.
On another thought, the best set-up I can think of would be a supercharger and turbo. I think this has already been done, but have a turbo pushing all the time and have a clutch on the supercharger (maybe an electro one like on a a/c compressor) and have the supercharger disengage at around 3k rpm for example to take care of turbo lag. I'm thinking Mercedes or some company has at least toyed with the idea.
08-01-2006, 07:46 AM
#5
TECH Senior Member
iTrader: (6)
Join Date: Jul 2005
Location: Decatur, AL
Posts: 5,257
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by PSM
vw has that system.. i think they call it twin charger or something like that
08-01-2006, 10:51 AM
#7
Former Vendor
iTrader: (1)
Join Date: Jul 2004
Location: Wichita Falls, TX
Posts: 2,801
Likes: 0
Received 0 Likes
on
0 Posts
I think you might still want some type of a balance tube between them. Some did a twin supercharge set up but it had a common plenium. Blowers were tilted but still fti between the valve covers.
The exhaust I would run them together or some form of a cross over, again that balance thing.
If you split the banks perfectly you now have 2 4 cylinder engines. Not sure what the harmonics would do.
It would be an interesting test.
Ricky
The exhaust I would run them together or some form of a cross over, again that balance thing.
If you split the banks perfectly you now have 2 4 cylinder engines. Not sure what the harmonics would do.
It would be an interesting test.
Ricky
Trending Topics
08-01-2006, 02:50 PM
#8
Originally Posted by TurboBerserker
On a recent episode of xtreme 4x4, Gale Banks designed a turbo system for Urban Gorilla that has twin turbos and twin plenums. Looked pretty cool to me...
Thread
Thread Starter
Forum
Replies
Last Post
carid
Sponsor's Announcements, Sales, and Specials
0
09-10-2015 09:07 AM
MA$TER_E
Tuning, Diagnostics, Electronics, and Wiring
5
09-09-2015 03:14 PM
