FD Upper on an Fc.
I've got one that I would be willing to offer up for free if someone would dyno test it. Obviously I have some stipulations( 400+rwhp and gotta be done in a reasonable time frame)
there is a kit on ebay,it's not chrome (trying to keep the cost low) but it works..
http://cgi.ebay.com/ebaymotors/manif...Q5fAccessories

http://cgi.ebay.com/ebaymotors/manif...Q5fAccessories
I do have pictures there is a lot of Porting to to be done to directly match the S5 lim to fd with out an adator plate. The thing with the s4 is not the runners so much as it is with the mounting points when I get on my comp I'll post pix and info an adaptor is absolutely nessisary so is hole enlongation on the fd uim holes you will also have to do some thing with the mechanical Omp
so where are the pictures?
I would really rather not take the time to make my own if I don't have to.
im currently in the process of find an adaptor plate already have the fd uim and tb w/ tps sensor just shopping/asking around looking for an adaptor current set up is street ported 13bt with hybrid turbo running on a microtech ... put out 301rwhp on stock 13bt now with the street port and fresh rebuild this should get interesting. so if anybody knows somebody with a cheap adaptor or someone who knows a shop/human that knows what they are doing. cause personally i do not want to mess with this s%$# ... HELP ME OUT PPL !!!
pix are here
my adaptor is a one of a kind youll have to make your own
http://www.nopistons.com/forums/*****-forum-t74634.html
my adaptor is a one of a kind youll have to make your own
http://www.nopistons.com/forums/*****-forum-t74634.html
^ he's supposed to be making a batch, I just pmed him about when they'll be done, I'll post here when he responds.
im currently in the process of find an adaptor plate already have the fd uim and tb w/ tps sensor just shopping/asking around looking for an adaptor current set up is street ported 13bt with hybrid turbo running on a microtech ... put out 301rwhp on stock 13bt now with the street port and fresh rebuild this should get interesting. so if anybody knows somebody with a cheap adaptor or someone who knows a shop/human that knows what they are doing. cause personally i do not want to mess with this s%$# ... HELP ME OUT PPL !!!
http://cgi.ebay.com/ebaymotors/manif...Q5fAccessories
and i'm very satisfied...
pix are here
my adaptor is a one of a kind youll have to make your own
http://www.nopistons.com/forums/*****-forum-t74634.html
my adaptor is a one of a kind youll have to make your own
http://www.nopistons.com/forums/*****-forum-t74634.html
now do your bolts go through all three pieces or did you have to put studs in the spacer?
without the replacement of the ECU, I meant.
I would think that there would be a way, since the FD TPS is a 6 pin like the S5 TPS, with similar ranges for narrow and full, if I remember correctly.
I could be wrong though.
I would think that there would be a way, since the FD TPS is a 6 pin like the S5 TPS, with similar ranges for narrow and full, if I remember correctly.
I could be wrong though.
I don't know, look in the FD FSM... does the FD TPS report the same signal?
if it doesn't you might be able to design some sort of conditioning circuit...
I don't really have that problem, and am not a big fan of the stock ECU in the first place...
if it doesn't you might be able to design some sort of conditioning circuit...
I don't really have that problem, and am not a big fan of the stock ECU in the first place...
I'm not thinking from a stock ECU standpoint, as much as I'm thinking from an Rtek standpoint, which has the simplicity of a non-labor intensive install, no re-wiring, uses stock sensors, full timing and fuel control, but is still limited in ways that the stock ECU is, such as TPS wiring.
I was thinking that, but was hoping someone could confirm that it was, indeed, the case.
I was thinking that, but was hoping someone could confirm that it was, indeed, the case.
I would just make the fc tps work on the FD throttle body.
By that I mean physically mount it to the throttle body replacing the FD TPS
-also if the top end value and bottom end resistance values match that is good but you need to make sure they are both non-linear or linear. And if they are non linear, you need to make sure they follow the same non-linearity.
By that I mean physically mount it to the throttle body replacing the FD TPS
-also if the top end value and bottom end resistance values match that is good but you need to make sure they are both non-linear or linear. And if they are non linear, you need to make sure they follow the same non-linearity.
When I get home I will take a look at both, but if memory serves the fd is the spinny type, and mounted around the throttle shaft, correct?
either way mount an arm to the throttle shaft and have it push the plunger in and out.
either way mount an arm to the throttle shaft and have it push the plunger in and out.
in fact i still have full blueprints and the cad files for the s5->fd AND s4->FD adapters. They're in the seat pocket of my FD

Only thing we never got to was triming the block to a curvy shape, in it's block shape it's easier to ensure a good seal, i prefer function to looks but whatever. if we did trim it to a curvy shape it still would've had proper seal space, stock amount of lip.
anyone wants to pay for raw materials i can probably get my friends to throw it thru the CNC again. Hell if they had access to a more advanced CNC machine i wouldnt have had to port it by hand at all.
on my s5 i didnt modify the UIM OR LIM...as far as i know jwteknix didnt port his s4 UIM OR LIM either...the design of the adapter made it unnecessary.
the problem with swapping mani's to dyno test is youd have to re-rewire your tps and other stupid small things, if i had a personal dyno id do it. Also dont forget you'll need to shorten you oil fill tube or buy the lower half of the FD tube. (if you can cut and weld you'll figure out a quick way to mod it as i did)
kevin.
I'm sorry if this sounds stupid but what is gained by using the FD UIM? Why not swap in the upper and lower? I'm guessing the ports are located differently? I'd like to see some dyno comparisons of FD and FC S4,S5 Manifolds... Sheet, Why not RE manifolds? or Custom?





