SDI Injectors

[Stephen]

Want a set of these bad boys.... I could go to the scrap yard but i wouldnt know if they work or not. Thats a gamble i may or may n not take depending on the price i can get a set for. :)

Stephen

[peterzs]

My ones off ebay ?50 + ?6 p&p

As you say dont know how good they are until you bung them in, also need copper washers to sit down on, but only pennies.

I threw a wobbly when I got mine as I thought the threads were bu**ered.

http://i297.photobucket.com/albums/mm214/peterzs/2-5.jpg

But I filed them up and went to a friendly garage and paid a couple of quid to a mechanic for a nut to run up and down the thread, so all look OK.

Just got to pluck up courage to bung them in, worries me a bit when the word is that you can do the pump in, if you run them tuned up too much.

My ones 134 bhp and goes fast enough to get me into trouble!!!!!

[Stephen]

Cheers Pete. Been keeping an eye on ebay but i dont fancy a set thats done 150k. So something a bit lower would be ideal :)

[peterzs]

I know you can get them refurbed, but think its quite pricey, thought I'd stick them in and see what happens.

I'm not too far from Yeovil and Reidy Remaps, saw he was doing remapping for derv at Oxford today about ?100 cheaper, but it was too short notice, plus havnt got the SDi's in.

Thought I might ask if he is doing a similar thing bit later, think he usually charges ?250 - ?220. Have heard that you get a lot of black smoke if you bung them in and dont get a tweak of the ECU.

[Dan1971]

Smoke is an issue ..... but so what ..... Mine cost ?40. 26bhp. No brainer.

[ZS Phil]

SDIs all the way, massive improvement for the price

[Enright]

Smoke is just unburnt fuel, which only happens when the burning fuel runs out of air during the cycle. So if you get enough air in, then you get minimal smoke.
In other words, if you get smoke, you just need to work on getting more air through the system. Not just in, but out too.
To get the best out of SDi's you need at least a K&N panel filter, empty catalytic converter and a free-flowing back-box, as well as the boost adjusted to 19psi.
You can go for a remap to reduce the smoke, but you're better off sticking the above bits on first and then taking it for a remap to get the best out of the entire setup.

[peterzs]

Think I will be OK then, BMC panel filter, no cat, Powerflow exhaust.

Just need the guts to fit them!!!!

[Dan1971]

Only thing missing there for me is a free flowing back box.

Personally - having fitted my mods one at a time and then run the car on a dyno - the smoke got worse as progressively through from the decat to be honest.

What the hell - only smoke. Might look at a remap at some point - but for now - all good.

[Enright]

Think I will be OK then, BMC panel filter, no cat, Powerflow exhaust.

Just need the guts to fit them!!!!

It's no more difficult to do than, say, changing spark plugs. But these will give you about 40bhp more! Go for it, you won't regret it (I certainly didn't, and it's the first mod I'd always do now). :D

[peterzs]

134 + 40 = 174 bhp does that mean my fuel pump might go bang??????

One of the things putting me off doing it.

[Dan1971]

134 + 40 = 174 bhp does that mean my fuel pump might go bang??????

One of the things putting me off doing it.

They're not worth as much as 40 Pete ..... Don't worry so much. So it's ?400 if it goes pop - big deal .... A man of your means and all that .... ;)

[Enright]

I meant about 40bhp over a standard 101bhp map - if you've already done other mods then the gain is less. You'd be lucky to get more than 160bhp with that little list.

[MG 53 ZED]

;)
That's on my list to do got the SDI's just have not fitted them yet.

[peterzs]

;)
That's on my list to do got the SDI's just have not fitted them yet.

Have to have a TY, SDi's fitting meet.

I bought the flexi bleed off pipe, to do at the same time.

:clap::clap::clap:

[p_b82]

Dont try and get more than 150-160 tops on a standard turbo - they just do not flow enough air to keep the smoke down - and you will see a massive rise in exhaust gas temps....

also if you go above 250-lbsft torque you need to uprate your clutch...

i got my set of SDi's for ?15 , no idea the mileage either, i had the nozzles cleaned in solvent before fitting them to the injectors again - old nozzles have slightly larger holes and put more fuel in - otho not as 'well' as new ones.

it is about ?25 per injector to get them calibrated iirc from an injector specialist.

[peterzs]

What kind of solvent did you use Pete, is it something I can do????

Just bung them in a old jam jar filled with the solvent????

[MG 53 ZED]

Originally Posted by peterzs
Have to have a TY, SDi's fitting meet.

I bought the flexi bleed off pipe, to do at the same time.

Sounds good to me, i want to get a stainless steel exhaust system fitted before the SDI's then get them in then a remap, but that will be next year.

[Dan1971]

Have to have a TY, SDi's fitting meet.



:yucky: :tease:

[peterzs]

:construction::construction::super::super: :yay::yay: :gathering::gathering: :hooray::hooray: :thumbsup::thumbsup:

[p_b82]

not sure which was used Pete in honesty - i think it was in an ultasonic bath too, but not 100%.

Matt cleaned them up before he popped them in!

[peterzs]

Thanks Pete, bit more involved than my old baked beans tin and a bit of white spirit, have to get them done professionally done, if they need it.

[Enright]

Pete, with the amount of smoke that I've seen you talk about since fitting SDi's, I just wondered: what boost pressure are you running at?
If you're not sure and don't fancy cluttering up your interior with a boost gauge, this is a really good solution for finding out:
http://tuning-diesels.com/Lseries/2545.htm#mi
Mine was only running at about 13PSI, so was smoking quite a lot because there wasn't enough air getting in to burn all the fuel. Shortening the actuator rod to up the pressure to 19PSI made a massive improvement to both power and smoke levels (1st up, 2nd down)!

[peterzs]

Cheers for the info, I'm off to Yeovil tomorrow for a Reidy Remap, we did mention boost pressures and hopefully it will get sorted out on the RR.

Will be interesting to see what its running, the smoke is only when you really boot it, and its only for the initial kick.

One of the guys at the meet yesterday said that when we went by him it wasnt bad, just a bit when I accelerated away. He was the red ZR, with green MG stickers, just had a new head gasket and was taking it easy.

Dont want to kill the fuel pump, or my CHG, as Pete with the tuned derv, says too much power can ****** them!!!! ( :oops: )

Let you know later what happens down at Yeovil.

:thumbsup::thumbsup:

[Stephen]

Got my SDI's Today!!

Need to get the sealing washers tomorrow and get them in!!

Also get the boost guage wired up!

[peterzs]

Well done, might be worth looking at the bleed off pipes.

Easy to do at the same time, if they look a bit worn.

My local shop gave me a kit for a Vauxhall. Seems to fit OK.

The injectors just need a wiggle and a pull straight up to get out. Thats after taking off the clamps at the bottom.

I spent 10 mins winding No1 round and round as it felt like it was screwed in!!!! Doh.

Take care of the wire from No1 injector. Also be careful how you unclip the wire from No1. where it goes into the brown plug and socket connector. I used a small screwdriver to pull the spring clip off, did it too well and it sprung out and disappeared, luckily it fell down onto the foam undertray.

Squeeze the fuel bulb to put the pressure back. I didnt crack the injectors, just cranked it over a few times and it fired up.

I'm keeping my old injectors just in case I dont pass the smoke test on the next MOT. If I also have to refit my cat as well, I'll be rebuilding the car for each MOT.

Got a price of £95 for refurb on the O/E injectors that came out.

Good luck with it. :clap::clap::clap:

[Enright]

Got my SDI's Today!!

Need to get the sealing washers tomorrow and get them in!!

Also get the boost guage wired up!

You'll love 'em!
But you don't necessarily need to clutter up your dash with a boost gauge - check here: http://tuning-diesels.com/Lseries/2545.htm