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Bosch Uprated Injectors

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10
Location
Waltham Cross
Just to clear a few things up. Bosch 200 bar system actually works at 150 Bar on the Fords I have played about with I think the pressure is set low due to the flat bucket and the forces acting on it when the cam lobe acts upon it. In the UK aftermarket tuners tend not to go above 180 Bar due to wear on the bucket. In my engine Ford actually put a roller bucket in and raised the height of the casting that the HPFP fits on to https://photos.app.goo.gl/TCte4hA7KHNABoQF8.
With regards to the Jag HPFP it most likely is the same internally just different orientation of inlet and outlets. The key to more fuel flow is to add lift to the camshaft lobe that acts on the HPFP plunger.
 


Messages
17
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4
Location
US
Is it possible to just upgrade the injectors and still use the oem hpfp on a gtx2860r?

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17
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Location
US
. Guess I'm going to pull the plug on this 1399 HPFP

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Messages
23
Likes
48
Location
Lake City, MI, USA
I'm just waiting for words from my tuner. Cars running great and it's being finalized for 93 tune. Like everyone is saying patience is a virtue. E30 is next and we'll see what the Jag HPFP can really do.
I'm impatiently waitin'! I have a S280 car on E30 w/ uprated injectors and I'd love a lil more power. Wonder if TunePlus would be down to tune with it. Also can someone clarify if there's a different cam bucket being used? Some people are mentioning that and I don't know which one(s) are being used or where they're getting them. Looks like a really simple part to replace though if you're doing the HPFP.
 


TyphoonFiST

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Location
Rich-fizzield
I'm impatiently waitin'! I have a S280 car on E30 w/ uprated injectors and I'd love a lil more power. Wonder if TunePlus would be down to tune with it. Also can someone clarify if there's a different cam bucket being used? Some people are mentioning that and I don't know which one(s) are being used or where they're getting them. Looks like a really simple part to replace though if you're doing the HPFP.
NOPE* OEM cam bucket is still just plain old fomoco. They tend to wear over time and while your in there it should be replaced.
 


Messages
191
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228
Location
Pharr, TX, USA
I'm already on E30 base tune, I'll update as I get word from my tuner. I need to get data logs first. The heat sucks so I have to wait for night. Cars running good and the butt dyno approves. Estimated HP from AP says ~280 so I'm guessing about closer to 300. I need to figure out what is wrong with my virtual dyno. I followed the settings for the FiST but it says it is still missing parameters when I load a data log.
 


Last edited:
Messages
23
Likes
48
Location
Lake City, MI, USA
NOPE* OEM cam bucket is still just plain old fomoco. They tend to wear over time and while your in there it should be replaced.
Good to know, I'd definitely do that. No need to save with how little that costs and how it seems to be absolutely zero extra work to add

I'm already on E30 base tune, I'll update as I get word from my tuner. I need to get data logs first. The heat sucks so I have to wait for night. Cars running good and the butt dyno approves. Estimated HP from AP says ~280 so I'm guessing about closer to 300. I need to figure out what is wrong with my virtual dyno. I followed the settings for the FiST but it says it is still missing parameters when I load a data log.
We're impatiently waitin', haha
 




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