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e24 larger injectors


Ray8254
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Me again,this time I'm looking for some info on larger fuel injectors for my e24.I know its a bit unusual to ask this but my 6er is not standard.It has an AVA turbo conversion with a M5 gearbox and dif.

I'm having a new ECU fitted as the old one only had a piggy back type on and it just wasnt  up to the job.The guys at Stone Motorsport are doing a great work but they stated the limiting factor might be the injectors,

Any help would be greatly appreciated.

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Morning Ray

Years ago upgrading my Cosworth we could buy rated injectors up to around 450 bhp with suitable turbo and head mods, the trick was to fit a fifth injector in the inlet manifold to get above that. Yes I ran a Cosworth Saphire on the road with 390bhp at the wheels exciting !!! Nothing much happened below 3k then all hell let loose totally mad then of course it was stolen all standard stuff for Cossie's in the 80's and 90's so I went Lotus Carlton.

As far as injectors go I would talk to an Injector specialist they may be able to modify your existing set for higher flows. They will need to know the airflows that you are targeting to match the injector flows for most effective performance. Not cheap but trying injectors from other models is guess work but an extra injector or twin injectors triggered at certain airflow? 

Good luck with your project sounds interesting

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On 2/17/2018 at 7:26 AM, Greydog said:

Morning Ray

Years ago upgrading my Cosworth we could buy rated injectors up to around 450 bhp with suitable turbo and head mods, the trick was to fit a fifth injector in the inlet manifold to get above that. Yes I ran a Cosworth Saphire on the road with 390bhp at the wheels exciting !!! Nothing much happened below 3k then all hell let loose totally mad then of course it was stolen all standard stuff for Cossie's in the 80's and 90's so I went Lotus Carlton.

 

2

Lotus Carlton....awesome car!!!   definitely one of my favourites from that era

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Morning Trevor

The Carlton (chassis 32) still ranks high with me, sold it to a Kiwi living in London and then lost track of it. It was followed by a couple of super charged Jags (not good quality at that time) and P38 Range Rovers (same quality issues) Then a string of Volvo's 850 T5, V70 T5's brilliant reliability and very quick with an ECU upgrade. Then the AMG Mercs 3 of those amazing love hate relationships and then the X5's just a sucker for punishment 

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There has to be some benefits to having the stress of your own business. The AMG's are amazing cars but Merc Dealers can leave BMW floundering when it comes to charging!!! Sometimes it felt as though there were sensors in the car so that when I drove past the dealer they sent an invoice!!

Brought the first X5 to tow a horse trailer after we sold the Horse Lorry (it wasnt used enough and cost a fortune at Plating each year) the AMG CLS I had then just sat on the drive as the X became a daily drive so the Merc went. Then I got the 4.6 X5 I am running now, I have invested a lot of time improving the 4.6 trying to lessen the effects of some poor engineering choices by BMW and have to say for me its a great compromise. Goes like a stabbed rat if needed holds the road like a hot hatch can pull the Horse box with ease and copes OK off road when I am out shooting plus it's a comfortable motorway cruiser, downside the ride is harsh on the 20" wheels. Now at at my age (into my 70's) I was tempted by an ML420 CDI but now Mercedes don't make that engine anymore I will stick with the X5 the 4.6 is becoming rarer so who knows I may have a potential classic?

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2 hours ago, Greydog said:

There has to be some benefits to having the stress of your own business. The AMG's are amazing cars but Merc Dealers can leave BMW floundering when it comes to charging!!! Sometimes it felt as though there were sensors in the car so that when I drove past the dealer they sent an invoice!!

1

LOL....I'm sure they have done that

It sounds like you know what you want from a car and I agree that sometimes it does come down to engine choice and other factors that dictate the vehicle you have chosen to drive

I drive a Honda CRV (3rd Generation) 2.2 CDT-i on a daily basis and I will probably grow old with it (although it may see it's demise in better condition than me). It just does what it says on the tin and does it very well, so no point in getting shot of it.
However, a man cannot have only one car...bit like a woman with handbags and that's where the 'other car(s)' come in....lol

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