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golftdibrad

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Reply with quote  #16 
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The 1.8 crank and rods are only 66mm offset, so your compression on the 103 kits will be low if you use that setup.  That is why we had to find and use a 2.0 crank and rod set.  What happened to the CV's?  We had four brand new race worthy Tangerine CV's there... 


The 2.0' got its extra 5mm of stroke by offset grinding the crant, and using longer rods to compensate.  1.8l (or 1.7l as they are the same parts) rods and crank will yield less displacement but the CR will be fine.  now if a 2.0l crank and 1.8/1.7 rods got used... well there is the problem.  EDIT: you cant do that unless using a weird combo of aftermarket rods.  But I think pook told me that 2.0 rods were used, and in that case the likely culprit is pistons that were made for a stoker setup, ie offset pin height. 

I think the CV was defective. 


In any case I got some high flex t2 cv's that are made for off road racing. 

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I think you gave me the clue as to what's wrong! What are the first two letters on that case? I was told there is no difference between a transport case and a normal type 4 but.....? That could explain the increased overall width of the motor and low compression.
It's the case that came in the 914 Bill and I bought but that doesn't mean some where along the line someone didn't switch it and I just didn't notice. A couple of mm is all it would take.???


I'll get you those 2 letters when I get home.  a couple of mm is all it takes. 

b-t

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"a couple of mm is all it takes"

That's what she said!


BT
golftdibrad

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Reply with quote  #18 
Turns out the cage did fail.


also, ordered the wrong cv's and had to install a used one. 

b-t

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That's strange.  I thought the cage really had no stresses on it.  I know there was a ton of grease in there, so there really should not have been any friction building up.  Where did you find used CV's for a 914?  I looked for about a month and coulldn't find any, so I just bought the new ones from Tangerine racing.

Sold the Ginetta Wednesday. 

We had a contract on our house to sell it, but the buyers backed out yesterday.

At least it is Friday (not that Friday means much these days!).

BT
golftdibrad

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That's strange.  I thought the cage really had no stresses on it.  I know there was a ton of grease in there, so there really should not have been any friction building up.  Where did you find used CV's for a 914?  I looked for about a month and coulldn't find any, so I just bought the new ones from Tangerine racing.

Sold the Ginetta Wednesday. 

We had a contract on our house to sell it, but the buyers backed out yesterday.

At least it is Friday (not that Friday means much these days!).

BT
                       


from what i can work out, the more angle you run the higher the loads on the cage are.  I found some used axles on the flebay. 
sucks you had to sell the other car. 

PooK

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Reply with quote  #21 
Yep, I thought you liked the mountain runs in the Ginetta?
PooK
b-t

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The mountain drives in the Ginetta have been my best days of fun driving by a long shot.  However, we are planning a BIG downsizing when we move out of our current house.  So going from a comfy 10 car garage setup to a standard 2 car (and using most of that to store some furntiure for a few years), we simply don't have the space for it.

To me it is all part of the sacrifice needed to get to my goal of moving out of this area of the country and settting up a nice income stream so I don't have to work (although if I do have some work that would be good too).

The dealer I sold the Ginetta to is the same guy I bought it from.  The costs of ownership have bene very low, averaging about $1000 per year including depreciation, insurance, maintenance, and repairs.  Quite a bargain for a sports car!


BT
golftdibrad

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Reply with quote  #23 
Getting CV'a and axles straightened out.  Time and money.  Going to 100mm high flex EMPI stuff.  Looks very robust. 
golftdibrad

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Here we can see the wild cheery picker in its natural environment preparing to pounce on its next victim.  It's spotted mostly around cars that are low on power, have windows where they should not, or have been rendered immobile. 

Oddly enough, it usually leaves then better off than when they were when initially spotted, right before it retreats back into storage.
golftdibrad

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Reply with quote  #25 
Well, its apart....



Looks like way too much deck height.  2.0l crank and vw rods leaves the problem to pistons.  supposed to be ~0.060 inches, more like 0.162 inches. :run:




How it sits.  Going to get on the horn tuesday to try and get some correct pistons on the way.


b-t

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Reply with quote  #26 
Well, I guess knowing the pistons aren't getting near the top of the cylinders is good news???  What will be different about the new pistons?  Does the wristpin location change or is the piston itself taller?  I have noly ever installed one engine (in the green machine).  How easy / difficult would you rate the removal?  If you need anything from me, just let me know.
BT

PooK

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Reply with quote  #27 
They never get all the way to the top, there is no gaskets on a big bore so that thickness or lack of has to be accounted for. Not THAT much but some.
The normal piston would have had a pocket that's why I thought they (the piston maker) would have offset the pin to allow some area to not have excessive compression.....I was obviously wrong.
PooK
golftdibrad

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Reply with quote  #28 
update:  Heads should work, pistons are correct, stroke is correct, so are the rods.  The jugs have to be different, so I got a set on the way.  If they are not, I'll have to get the jugs trimmed from the bottom a bit. 

Axles have been a headache.  With some luck the engine and the upgraded axles should be ready to go in about the same time: this weekend. 

b-t

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Reply with quote  #29 
Sounds good!  I hope it all comes together for you.

BT
golftdibrad

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Reply with quote  #30 
jugs came in late last night, and what you know, they are the same as what i have. off to the machine shop then. Need to cc my heads and figure out how much to cut off the things.
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