artinist Posted March 13, 2003 Report Share Posted March 13, 2003 I am wondering if anyone here is using the MPI intake that Chad makes. He has pics of a few different version on his site and I am wondering if anyone here has one. any feedback? Link to comment Share on other sites More sharing options...
Quest4Power Posted March 14, 2003 Report Share Posted March 14, 2003 there are a few pics on my cardomain site: members.cardomain.com/superquest also at my yahoo photos site. just search for flyinmiata90 on yahoo photos and go into "conquest". Link to comment Share on other sites More sharing options...
artinist Posted March 14, 2003 Author Report Share Posted March 14, 2003 hey, thats great. your car is coming along very nicely. it should be a pretty strong engine. what clearance issue did you have? Link to comment Share on other sites More sharing options...
Quest4Power Posted March 14, 2003 Report Share Posted March 14, 2003 the flange was too thick in some spots interfering with the valve cover. Â this one was one of his testing designs, not considered one of his finished products. Â the only problems i've been having were created by me, as far as getting the injectors to seal at the rail when it's pulled down at an angle instead of straight down like when i bought it. Â i just didn't like the idea of the injector firing straight down into the runner (he's changed it to basically how i have mine now). my impressions so far are great. Â the car has excellent throttle response compared to a stock tbi car, and even with the big turbo on there it just wants so badly to spool up with this much flow (i was hitting 5psi at 1/2 throttle letting off at 4k rpm with a p-trim on center T4 60-1). Â i can't wait until i can put a tag on it and finish my break in period. Link to comment Share on other sites More sharing options...
artinist Posted March 14, 2003 Author Report Share Posted March 14, 2003 ya, I will ask him to do a few things differently when i order mine. i want my injectors to spray on the back of the vavles just like typical factory injector locations(not far from the head). the car i am getting is runing a stock intake converted to MPI with a turbo bigger than yours. hopefully the slight lag will improve when i move to this intake. Link to comment Share on other sites More sharing options...
Quest4Power Posted March 14, 2003 Report Share Posted March 14, 2003 ya, I will ask him to do a few things differently when i order mine. i want my injectors to spray on the back of the vavles just like typical factory injector locations(not far from the head). the car i am getting is runing a stock intake converted to MPI with a turbo bigger than yours. hopefully the slight lag will improve when i move to this intake. what turbo is it running and what kind of header? i'm sure the lag will be helped by the intake. Link to comment Share on other sites More sharing options...
importwarrior Posted March 16, 2003 Report Share Posted March 16, 2003 CHADS ENGINE PIC!!!!!!!!! http://users.lvcm.com/starquest/ChadsHeader/Chads%20Car.jpg Link to comment Share on other sites More sharing options...
Juggary Posted March 17, 2003 Report Share Posted March 17, 2003 I see that Chad is using his custom made MPI system, and from the way it looks I give props to Chad because it looks great, but does any body know if it's running and how does it run with his MPI? Link to comment Share on other sites More sharing options...
importwarrior Posted March 17, 2003 Report Share Posted March 17, 2003 yes i believe it has over a 1000 miles or so, i could be wrong. but his intake fuel setup is good for up to 1000 hp Link to comment Share on other sites More sharing options...
Grbii87quest Posted April 3, 2003 Report Share Posted April 3, 2003 Is there more info on his MPI??on other cars that have his MPI on them? Thanks Link to comment Share on other sites More sharing options...
artinist Posted April 10, 2003 Author Report Share Posted April 10, 2003 here are a few pics of an MPI intake that my friend and I were working on a few years back. we never got to complete but it would have been very much like the chad intake. I will be asking chad to place the injectors in a location similar to the ones in the picture when i order mine. http://home.earthlink.net/~artinist/images/MPI2x.jpg http://home.earthlink.net/~artinist/images/MPI1x.jpg Link to comment Share on other sites More sharing options...
Quest4Power Posted April 11, 2003 Report Share Posted April 11, 2003 that's pretty much how i did mine after cutting the old ones off. i used the msd injector bosses and an epoxy to hold them in. now i'm finding that msd's suggested epoxy doesn't hold too well when fuel gets on it so i'm taking the intake back off to have them welded and do some other little odds and ends with it. Link to comment Share on other sites More sharing options...
DanMitsu Posted May 5, 2003 Report Share Posted May 5, 2003 its handled. Â (chad is going to stand behind his product) An thankx for the replys,. im short, Â paitence, an time. mpi is alot more than what is planned on. Link to comment Share on other sites More sharing options...
DOOMID Posted May 21, 2003 Report Share Posted May 21, 2003 What advantage to the 8 injector to the 4, What HP rating is the 4 injector setup godd for...any info, i plan on running chads intake. Link to comment Share on other sites More sharing options...
Gearhead2002 Posted December 5, 2003 Report Share Posted December 5, 2003 I would like to know too thanks Link to comment Share on other sites More sharing options...
TopDawg_43 Posted December 5, 2003 Report Share Posted December 5, 2003 I would like to know too thanks The biggest advantage to running 8 injectors or 4 is for drag racing. With 8 injectors, you can run one of those beyond life size turbos. With 8 injectors you'll have to run a staged injection setup, which is no big deal with any standalone. Just makes tuning a bite more difficult. Link to comment Share on other sites More sharing options...
Chad Posted December 5, 2003 Report Share Posted December 5, 2003 the SDS system I use requires no more tuning than the 4 injectors systems, it is a seamless transition from stage one to stage 2. there are 2 reasons for staged injection: 1- you can use 8 readily available injectors vs. 4 very large (more expensive) custom injectors. 2- you idle on only 4 injectors so drivability is pretty good, oversized injectors dont perform well at low demand (idle/cruise) I have 8 50# injectors, I idle on 4 injectors which is about a 350 HP capacity, it runs just fine, good cruise, fair milage. When I floor it, I have 8 50# injectors on tap which gives me a 700+ HP capacity. Link to comment Share on other sites More sharing options...
Raving_Sterno Posted December 17, 2003 Report Share Posted December 17, 2003 that is a sick setup... i'm glad someones getting creative with pipe routing.. as well as using what apears to be coil packs, from what but controlled by huh? ~J Link to comment Share on other sites More sharing options...
StarBoy Posted December 17, 2003 Report Share Posted December 17, 2003 why doesn't his MPI setup have a return like tapped on the fuel rail?? Link to comment Share on other sites More sharing options...
TopDawg_43 Posted December 17, 2003 Report Share Posted December 17, 2003 that is a sick setup... i'm glad someones getting creative with pipe routing.. as well as using what apears to be coil packs, from what but controlled by huh? ~J This is what my IC piping looks like. http://img.villagephotos.com/p/2003-12/520133/MPI.jpg why doesn't his MPI setup have a return like tapped on the fuel rail?? You have to run a return on all fuel injection setups. Or at idle, your fule pressure will get to high, and blow all your fuel injector seals, and blow gas all over the top of your engine. Link to comment Share on other sites More sharing options...
Chad Posted December 18, 2003 Report Share Posted December 18, 2003 starboy, I have the regulator below the intake upstream of the injectors. I will be changing the setup soon and will have it down stream, but still not attached to the fuel rail. Having the regulator upstream has caused air bubbles to get traped in the fuel rail whenever it sits for a few hours, causing difficult cold starts. Link to comment Share on other sites More sharing options...
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