Re: NF Upgrade for 4kq

["Mr. Daniel P. Grady" <dgrady@mail2.nai.net>]

According to the Haynes manual I own, the fuel injectors on the NF engine
have a finer thread and ,if I remember correctly, a higher opening pressure.
I've never had to remove my injectors (87 5kq) so I can't say for sure and
Haynes is not 100% reliable.
Drive Fast
Dan Grady
-----Original Message-----
From: Glen_Powell@ne.3com.com <Glen_Powell@ne.3com.com>
To: quattro@coimbra.ans.net <quattro@coimbra.ans.net>
Cc: glen_powell@3com.com <glen_powell@3com.com>
Date: Tuesday, September 08, 1998 11:08 AM
Subject: details on 4KQ NG/NF upgrade


>
>
>
>
>
>I'm going with the NF upgrade for the 84 4KQ road-race car. The NF has the
>single-piece IM and the injectors in the head as does the stock 4KQ setup.
>This _should_ permit use of the existing stock 4KQ CIS and facilitate a
>'bolt-in' upgrade. The NG would require all the NG fool system stuff as
>well. Both the NG and NF have the 2.3L disp, 10:1 comp, piston squirters
>and big-valve (40mm) heads, so the NF is the easy way to go for the same
>results.
>
>I purchased a complete and tested running 88 5K NF engine from Harrison at:
>800.438.8733 for $350  including shipping - one heack of a good deal. I am
>also purchasing a new NF head from Audi via Mark Besso at: 800-378-9106 for
>$547.00 - can't beat that!
>
>The current plan is to fully race-prep the new head, IM and EM, full-race
>cam, and bolt them onto the used NF lower-end. The used NF head will be
>returned to Audi for the core charge. As some time in the future I may
>punch-out the NF block to 2.5L and install custom 12:1 lightweight forged
>racing pistons. I decided to go with the used lower-end in order to spend
>more of the budget on the best possible prep of the top-end and cam, and
>upgrade the lower-end in the future. I will be using the stock 4KQ CIS and
>ignition and running race fool exclusively - no knocksensing here.
>
>Here are the (excellent) prices quoted for new NF engine HW from Mark:
>
>
>Short Block -
>part# 034.100.104.JX     List Price $1120.00 (this I will not be using)
>Cylinder Head -
>part# 034.103.265.GX     List Price $547.00
>Gasket Set (Block) -
>part# 034.198.011.C List Price $142.95
>Gasket Set (Head) -
>part# 034.198.012.K List Price $172.65
>Any questions or comments please respond directly to or copy:
>glen_powell@3com.com
>
>-glen
>
>

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From:  dgrady@ct2.nai.net