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> 1.8 rebuild, 1974 Porsche 914 1.8 rebuild
Scott76
post Mar 23 2007, 02:43 PM
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Hello all. First time posting here. I figured I'd share and hope to get some advice on a project engine that I'm rebuilding. I got my hands on a '74 1.8 engine for a project car.

I have torn the engine all apart and gave it to the machine shop. I stopped in to see how everything is going with it. WOW.... it looks great. seeing the heads all bead blasted and the case cooked out. He is inspecting everything for me. I have a list of parts that I need. P&C set; cam/gear/lifters; oil pump. I called the machine shop and told them to go ahead and do the heads. I plan to have it back near the end of April.

The list goes on. I want to keep it stock but a little mild/wild on the cam. I plan to put 44 to 48 webers on it. I was told to stay away from the 96mm p&c set and stick to the 94mm.

I'm looking for any advice for a rebuild. The engine code is EC026590. The codes says something about not being a standard 1.8. I'm really not understanding it. Please help me.

I'll try to attach some pics.
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G e o r g e
post Mar 23 2007, 02:48 PM
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QUOTE(Scott76 @ Mar 23 2007, 01:43 PM) *

I was told to stay away from the 96mm p&c set and stick to the 94mm.

I'm looking for any advice for a rebuild. The engine code is EC026590. The codes says something about not being a standard 1.8. I'm really not understanding it. Please help me.

I'll try to attach some pics.


94 mm is a 2 ltr piston the 1.8 is 93 (IMG:style_emoticons/default/beerchug.gif)

i would do some reading over at Shoptalk forums if you go to 48 webers the 1.8 valves might be to small for that application


what are they doing to the heads?

(IMG:style_emoticons/default/welcome.png)
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G e o r g e
post Mar 23 2007, 02:49 PM
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and (IMG:style_emoticons/default/thisthreadisworthlesswithoutpics.gif)
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Scott76
post Mar 23 2007, 02:50 PM
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I'm trying to post pics. its not working!!!!!
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Scott76
post Mar 23 2007, 02:56 PM
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I'm getting new valve guides, valves, and machined cyl. seats. I looked at the heads. there is no cracks. they look great. I can't wait till I get it back. I'll take pics and post.

If I can figure this dang thing out... I think the pics are to big.
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type47
post Mar 23 2007, 03:22 PM
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keep the L-jet
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Borderline
post Mar 23 2007, 03:32 PM
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What's the reasoning for staying away from the 96mm pistons and who told you? I just finished assembling my 1.8 (now 1.9) with 96 mm p/c's and this is the first I've heard anyone say stay away from them. If you go with webers, you will want to use either 40's or 44's. The 48's will be too big. Did your head guy put in larger valves?
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Scott76
post Mar 23 2007, 03:34 PM
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I don't have the jets. All I got is the bare engine and the tranny. I'm sorry to say its not going back into a 914 and I don't even need the tranny. Sorry guys!!!! I was told the car rust around the engine and was smashed. the engine and tranny was pulled to sell. I picked it up down in Philly. I'm working on getting pics into this.
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Scott76
post Mar 23 2007, 03:36 PM
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I don't think he's putting in bigger valves. I was told the 96's would burn up to fast.
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jd74914
post Mar 23 2007, 03:39 PM
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That is total BS.

96's won't burn any faster than your 93's will in a mild engine. They just offer a slight compression and displacement bump for more power. Those Webers are huge . . . way too big for a 1.8L unless its a serious hot rod engine. You should go find some Weber 40s or Dellorto 40s. They are a much better fit for the engine. Then just make sure you get a cam that works with your desired compression and be sure that the valve train can keep up (IMG:style_emoticons/default/smile.gif)
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Scott76
post Mar 23 2007, 03:42 PM
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I'm afraid its going to run hot. I'm doing a type 1 conversion on it. I don't know how much air is going to move over it.

I was told a cam of 288 duration with .490 to .520 lift for a 44 to 48 weber.
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Scott76
post Mar 23 2007, 04:15 PM
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I hope, I don't piss to many guys off with this project. I'm chasing a childhood dream car. Heres some pics.

(IMG:http://i121.photobucket.com/albums/o215/s_kline76/100_0183.jpg)
(IMG:http://i121.photobucket.com/albums/o215/s_kline76/100_0227.jpg)
(IMG:http://i121.photobucket.com/albums/o215/s_kline76/100_0255.jpg)
(IMG:http://i121.photobucket.com/albums/o215/s_kline76/100_0253.jpg)
(IMG:http://i121.photobucket.com/albums/o215/s_kline76/100_0259.jpg)


Here is what the engine is going to push.
(IMG:http://i121.photobucket.com/albums/o215/s_kline76/100_0309.jpg)
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914werke
post Mar 24 2007, 12:22 PM
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go 96's for 1911 cc's keep the Ljet and since you WILL get a bump in HP from the increased displacement you will have NO problems pushing the lighter weight of a FG buggy shell!! (IMG:style_emoticons/default/confused24.gif)
Since the thing hangs out in the air compared to a 914 I doubt your gonna have cooling problems
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rhodyguy
post Mar 24 2007, 12:34 PM
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have you figured out how you are going to support the front (fan) side of the engine yet? that's alot of weight hanging out there. the buggy should be pretty quick no matter what size t-4 engine you install. you'll be needing wheelie bars with a hipo engine. weber 40s will be plenty big for the engine you're building.

k
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0396
post Mar 24 2007, 01:08 PM
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QUOTE(rdauenhauer @ Mar 24 2007, 11:22 AM) *

go 96's for 1911 cc's keep the Ljet and since you WILL get a bump in HP from the increased displacement you will have NO problems pushing the lighter weight of a FG buggy shell!! (IMG:style_emoticons/default/confused24.gif)
Since the thing hangs out in the air compared to a 914 I doubt your gonna have cooling problems



Rich,

I also have a 74 1.8 and was thinking of installing 96's in it.
But always wonder about a few things.
* did you have to make any additonal adjustments to the L injection?
* which type of pistons did you used
* any further 'insights'

Sorry to high jack this tread.

(IMG:style_emoticons/default/smile.gif)
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MartyYeoman
post Mar 24 2007, 01:52 PM
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QUOTE(rdauenhauer @ Mar 24 2007, 10:22 AM) *

"go 96's for 1911 cc's keep the Ljet "


(IMG:style_emoticons/default/agree.gif)
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Scott76
post Mar 24 2007, 02:05 PM
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I know I'm not going to have a problem pushing a buggy shell. I had a chance to buy a 2.0L but past on it. I just want a reliable porsche engine thats not going to be to big for the car. I thought 93's are more reliable? I want dual 44 webers, What about the cam? I need a new cam/lifters/gear.
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914werke
post Mar 24 2007, 11:08 PM
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QUOTE
I also have a 74 1.8 and was thinking of installing 96's in it.
But always wonder about a few things.
* did you have to make any additonal adjustments to the L injection?
* which type of pistons did you used
* any further 'insights'

On mine I used D-jet so I couldnt specifically say other than its my understanding
that it should be EASIER to tune a slightly modded L-jet motor. Basicaly Fuel presure, Flapper gear and fine idle screw (I'm sure someone will step up and tell me I wrong and full of (IMG:style_emoticons/default/stromberg.gif) (IMG:style_emoticons/default/biggrin.gif) )
I bought a set of KB 96's and Hasteing rings from Raby (with the correct Pin height for the 1.7/1.8)
the only other thing I did to mine was rebuild a set of 2.0 heads slap on the 2.0 FI 2.0 SS HE's and a Bursch Exhaust modded for a WB02 sensor (IMG:style_emoticons/default/thumb3d.gif)
Geoff used his LM1 to tune the MPS and its a kick (IMG:style_emoticons/default/driving.gif)
QUOTE
I thought 93's are more reliable?

NOT
QUOTE
I want dual 44 webers

(IMG:style_emoticons/default/blink.gif) Its your motor (IMG:style_emoticons/default/confused24.gif)
QUOTE
What about the cam? I need a new cam/lifters/gear

Chk Raby..Split duration
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Bleyseng
post Mar 24 2007, 11:32 PM
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QUOTE(396 @ Mar 24 2007, 12:08 PM) *

QUOTE(rdauenhauer @ Mar 24 2007, 11:22 AM) *

go 96's for 1911 cc's keep the Ljet and since you WILL get a bump in HP from the increased displacement you will have NO problems pushing the lighter weight of a FG buggy shell!! (IMG:style_emoticons/default/confused24.gif)
Since the thing hangs out in the air compared to a 914 I doubt your gonna have cooling problems



Rich,

I also have a 74 1.8 and was thinking of installing 96's in it.
But always wonder about a few things.
* did you have to make any additonal adjustments to the L injection?
* which type of pistons did you used
* any further 'insights'

Sorry to high jack this tread.

(IMG:style_emoticons/default/smile.gif)


I tuned my Westys Ljet which is just as Rich said. easy and drives like a bandit.
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0396
post Mar 25 2007, 12:28 AM
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QUOTE(Bleyseng @ Mar 24 2007, 10:32 PM) *

QUOTE(396 @ Mar 24 2007, 12:08 PM) *

QUOTE(rdauenhauer @ Mar 24 2007, 11:22 AM) *

go 96's for 1911 cc's keep the Ljet and since you WILL get a bump in HP from the increased displacement you will have NO problems pushing the lighter weight of a FG buggy shell!! (IMG:style_emoticons/default/confused24.gif)
Since the thing hangs out in the air compared to a 914 I doubt your gonna have cooling problems



Rich,

I also have a 74 1.8 and was thinking of installing 96's in it.
But always wonder about a few things.
* did you have to make any additonal adjustments to the L injection?
* which type of pistons did you used
* any further 'insights'

Sorry to high jack this tread.

(IMG:style_emoticons/default/smile.gif)


I tuned my Westys Ljet which is just as Rich said. easy and drives like a bandit.



Thanks for the insights!

One day..
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