NefMoto > Noob Zone > Noob Questions (Moderator: turboat) > Injectors for 300HP e85
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Author Topic: Injectors for 300HP e85  (Read 429 times)
Razorte
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« on: April 27, 2024, 02:09:18 PM »
Hello,

What injector reference do you recommend for 300hp on E85? Golf 4 GTI 1.8t 20V AUM

I've already tried the Bosch 630cc 0 280 158 123 purchased from Bartek but they're impossible to tune.

A friend tried the Siemens 630cc Deka injectors but experienced unstable idle and starting.

So, I'm wondering which reference is really good for 630cc.
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_nameless
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« Reply #1 on: April 27, 2024, 04:45:54 PM »
Quote from: Razorte on April 27, 2024, 02:09:18 PM
Hello,

What injector reference do you recommend for 300hp on E85? Golf 4 GTI 1.8t 20V AUM

I've already tried the Bosch 630cc 0 280 158 123 purchased from Bartek but they're impossible to tune.

A friend tried the Siemens 630cc Deka injectors but experienced unstable idle and starting.

So, I'm wondering which reference is really good for 630cc.


Anything that Ive seen from Bartek is china crap. Real Dekas should be easy to dial in. I've used decaps all the time without any issue, so you may have a hardware or calibration problem
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If you are in the market for a tune and would like the ease of downloading and flashing a dyno tested tune for a fair price check out https://instatune.sellfy.store/
EanDem
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« Reply #2 on: April 27, 2024, 11:23:24 PM »
Quote from: Razorte on April 27, 2024, 02:09:18 PM
Hello,

What injector reference do you recommend for 300hp on E85? Golf 4 GTI 1.8t 20V AUM

I've already tried the Bosch 630cc 0 280 158 123 purchased from Bartek but they're impossible to tune.

A friend tried the Siemens 630cc Deka injectors but experienced unstable idle and starting.

So, I'm wondering which reference is really good for 630cc.



Mentioned injectors has up to 3% flow difference and it has delay to take in to account. Plus bit rodeo arround fuel density and temperature where you getting unstable run. I dropped fuel pressure for idle with wider SOI-EOI where flow difference not bite so hard. Yes issue remains - but less anoying. For check i installed Injector Dynamics ones - it has less issues with flow - but it is expensive compare to shady "Bosch" polish guy sels in company already mentioned.   

Another idea - run injectors flow test to get more accurate data on flow difference and deadtime - ajust CAL. I am not in detailed knowledge for MK4 CAL - so just shooting idea to sky here.
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prj
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« Reply #3 on: April 28, 2024, 02:04:17 AM »
I recommend some Bosch EV14 from www.finjector.com

They sell flow matched genuine injectors.
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Blazius
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« Reply #4 on: April 28, 2024, 07:32:31 AM »
Same as above. I got injectors from them and im very satisfied. They even sent me some chocolate in the package as a gift Smiley
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aef
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« Reply #5 on: April 28, 2024, 10:59:40 PM »
Quote from: Razorte on April 27, 2024, 02:09:18 PM
I've already tried the Bosch 630cc 0 280 158 123 purchased from Bartek but they're impossible to tune.

you could have just bought them elsewhere for a standard aftermarket price. bar-tek is always expensive because of "tuning".

you most likely did something wrong within your file. 0280158298 are nicer and newer than the 0280158123.
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