Gents/Ladies,

I have seen the modded cars on this site and I am looking to gain more power from my KEJet S1. I had it set up at PJ Motorsport and I should be running in the region of 300bhp with all the mods but PJ could only squeeze 190 safely although it does smell of fuel on overrun????

I keep seeing the fueling systems that are being put on all the cars which are heavily modified and with the modifications to my engine I should be easily in the 250bhp region. Brief spec:

Big valve head
modified throttle body (Bigger)
lightened and balanced
steel bottom end
newman cam and solid lifters
5 th injector setup (which is a MSD one but found out it was used with a cold start injector not a cossie green)
KE Jet
20 psi chip although peaked on the dyno at 26psi
cossie fuel pump
stage 2 gearbox

I have seen a number of specs that easily get over 200 bhp but I just can't reach it. PJ said I was getting enough air but not enough fuel.

How much would it cost aeroquip etc, and loverly fabricated parts from lee @ fusion !!! to sort out my tired fuel system. I dont want to go EFI as I want to keep to the roots of the S1 as much as possible.


CheeRS

 

im gettin around 309bhp maybe more on 22psi be more next week with another map , think u need to change the management and get it mapped properly

 

The problem being I dont want to change the S1 feel. The car is nearly in concours condition on the outside and I dont want to change all that. I know that there are limits to KEJet but I want to explore it. With a fueling mod I am sure I can get the 300bhp. Just need a good idea.

 

I think you will probably find all the other cars running higher power with a similar spec to you are on EFI, KE Jetronic is so limited and also crap unfortunately.

Surely PJ Motorsport would have suggested these mods if they felt them capable of upping your power?

 

No unfortunaly he just stated cant get any more fuel here is a bill for £280. I cant complain the car feels fast but I should be pushing a hell of a lot more BHP outta it. I am trying to get it booked in a MSD but you all know how long the waiting list is.

Any other ideas???

 

is the 5th injector actually workin

 

yeah it kicks in around 7 psi I was told. The only problem being that it is a cold start injector from another ford so it does not flow as much fuel as cossie green or equivalent.

I am trying to make up a manifold to take a fezzie blue injector first (cause i got a couple lying about) then I am gonna look into other ways.

Would there be any benifit in having 2 fuel pumps and maybe rewiring the fuel pump as I have seen a few cossie boys on here do???

 

5th injector sounds like a nice bodge

 

No it aint a bodge, whoever did it spent some time! The charge carier has been welded very expertly to house the injector. The system is from MSD themselves and works on the boost pressure. Its all plumbed in very neatly just got the wrong injector when they first did it.

See below picture of the engine bay. This aint a bodge job. This is one tidy engine bay.

 

take it to jamesport im sure jamie can sort it out for u , should beable 2get 250-260bhp i would have thought

 

the 5th injector should come on at the end of the mfi's limit on fuel, my s2 5th injector came on at 12psi,and boosted to 22psi that was 230bhp.

I AM in the same boat mate, have a s1 and want to keep it standard......and need more fueling, but no-one wants to tell me how to ajust the fuel form the metering unit LOL

 

You can adjust the fuel from the metering head by undoing the black box (fuel pressure unit on the side) remove the little grub screw and you will find an allen key adjust which you can increase the fuelling. I did this on my mates when he got a chip, but you need to get a tuner to do it. The only problem being is that it has its limits.

I have seen a thread on this site where you can put a line from the charge carrier to the fuel valve on the return fuel line from the metering head and supposidly this increases fuel pressure also.

Only problem I can find is that no-one will tell me officially!!! We need Stu @ MSD or another top tuner on this site to give us some proper info!!!

 

Yes, i'm sure the tuners will tell you all of there secrets for free

the fact is that if you want 300bhp,then you'd ideally need to lose the KE-Jet,you can still keep your inlet manifold etc,but the metering unit has to go.

Cossie L8 management would be my choice,with a set of greens or greys and a T34....of course you will also need a steel bottom end ideally to cope!

so either accept the limitations and enjoy your standard looking engine bay,or get new management with a 'tiny' difference

 

I accpet that the tuners wont give all the information for free, but someone must be able to give me an idea or be able to have a look at the car and discuss ideas with me!. Did you look at my spec?? I already have a steel bottom end to cope with with power.

have you seen the picture above??? Does it look standard???

The reason I dont want to go other management is that the S1 is based on KE Jet and I love the standard look outside S1 but with major power.

In my honest opinion a S1 without KE Jet is not worth as much as one with and I would love to concours the car in the coming years and I dont want all the hassle of modification to the loom and all the sensor changes etc.

Are there any tuners out there (Stu @ MSD who the car is stickered with) Norris Motorsport who are willing with their time and my (limited! doh!) cash to see what they can get outta my car???

I think it has the makings of a beast, it just needs to realise it!!!

 

Ok,no i hadn't seen your spec tbh,but sounds like you have the right bits

i honestly think that it makes no difference whatsoever on a modified S1 whether it has the metering unit or not (value wise)

what i will say is the value will increase if you do it properly! there are ways of modifying the KE-Jet i know, but i think you can only go so far before the cruising and idle AFR's get too high

Cossie management is a nice easy conversion,that if it's left to the pro's can be tidier than standard!!

Good luck with it

oh and Karl Norris will defo be able to advise the best route for you to go,but i will bet money that if you say 300bhp he will say bin the KE [/img]

 

I know what you are saying 300bhp may be too much power for me anyway, would i be better getting another setup at a different tuner and aim in the region of 250bhp???

The car still has to be reliable and a daily driver! I cant see the point of owning a car if you cant use it!

Anybody have any other ideas?

I will PM Stu @ MSD to see if he has any or can book me in!!!

 

2 week's isnt that bad is it?

 

two weeks is good

Stu will sort you out

 

Its cool Stu, I think i explained wrong to the guy on the phone and he told me that you were booked up for a few months. (Think it was live mapping???)

I just need to get my self up there and get you to have a look at it. If you PM I can give you the reg. Its got your motorsport stickers all over it!

The guy I brought it off recommended you very highly. That why I didnt mind if I had to wait!

 

That will explain it, we are booking September now for live mapping.
Just so your fully aware, Bosch KE can NOT be live mapped, by anyone, its impossible. What you need is a decent setup and diagnosis session to determine where you fuel deficit is coming from and to hopefully rectify it.

 

I had a feeling that was the case. I know the last part on the car that was modified was the fuel lines from the metering unit to the injectors were changed from the red pipes to braided hoses. My concern is that theses hoses were slightly smaller than the original ones and are restricting the fuel to the injectors. Another possiblity maybe that ym injectors need cleaning or renewing. I sont know how old they are.

As soon as I can get some cash together, i will get in booked in and hopefully we can get it sorted.

 

does anyone have pics of this grub screw effort????? just so i know im going near the right bit lol....