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| r_towle |
 Mar 1 2003, 06:28 PM
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#1
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Custom Member  Group: Members Posts: 24,576 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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How big has anyone successfully gone while retaining the stock/tweeked 2.0 liter FI ????
Thanx |
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| Brad Roberts |
Mar 1 2003, 06:42 PM
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#2
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
The most we have seen is 115hp at the flywheel with a header. The first time we ran it the car was fairly fresh with 3k miles on the engine. A year later it had gained 3 hp.
B |
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| r_towle |
Mar 1 2003, 06:50 PM
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#3
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Custom Member Group: Members Posts: 24,576 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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I was talking about how big...like 2.1 2.2...etc
can you go to 2.4? I have seen an injector for the Mercedes Benz... It is an 8 cylinder 4.8 liter the bosch injector would work with 2.4....4 cylinder just wondering if it has been done ....yet.... rich |
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| Dave_Darling |
Mar 2 2003, 09:38 AM
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#4
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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There is one local (SF Bay Area) who is running a 2.2 on D-jet. Some tweaks were required. I don't know specifics.
--DD |
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| Alfred |
Mar 2 2003, 12:12 PM
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#5
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Unregistered |
You'd think that Bosch would have it on file somewhere what the d-jet can flow in CFM and what the maximum requirement of the 2.0 engine is. We 914 owners need somebody (just not AA!) to approach Bosch and Porsche and see if they can't share (or sell) some of this technical info (including the actual designs) with us. I mean it's not like they're using them anymore.
Alfred |
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| Mueller |
Mar 2 2003, 12:52 PM
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#6
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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The factory already has given you tons of information,look at the dyno sheets published by the factory in the manual (IMG:style_emoticons/default/smile.gif)
One just has to do the math to extract the information wanted.......it's all there. Fuel wise, the D-Jet can handle twice or more of the displacement, the key is getting the air into the cylinders, that is where bigger throttle bodies and intake plenums come into play...but then you need bigger valves as well since that is where the restriction will be unless taken care of... The 2.0 injectors at 100% duty cycle can flow enough for 304 hp if stretched to the limit.... Paul "Brad" Anders has done an awsome job gathering this information. http://members.rennlist.com/pbanders/djetfund.htm http://members.rennlist.com/pbanders/DJetParts.htm Turbochargers have been added to stock D-Jet motors so that is proof that the D-Jet can handle a bigger displacement motor since all a turbo does is "trick" the engine into "thinking" it is bigger than it is. |
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