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> Tracking the 914 - Happy New Year!, Turning this into a regular thing...
Racer
post Nov 18 2020, 09:39 AM
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QUOTE(campbellcj @ Nov 18 2020, 09:55 AM) *

Re. POC it's gotten depressing how few older cars are out there - meaning 986/996 era is now "classic" and the action is in the BSR and 911 GT3 type stuff. I've thought about moving to a BSR or Cayman but would have to sell a car for budget and space and don't want to... I may go check out VARA next year as well (finally)


lolz.. depressing not many 40-50 year old cars out there.. vs only 20 year old cars.. Time has a way of moving on.
Other than Historic/Vintage clubs, I don't see a lot of 40-50 year old cars out there to begin with.. and most of them have drivers/owners that are even older!



As to the OP, sorry to see/hear about your engine woes. Yes, decision time on where to exchange money for an engine (IMG:style_emoticons/default/wink.gif)
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infraredcalvin
post Nov 18 2020, 02:45 PM
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Just got off the phone with Dennis at FAT, looks like I’ll be staying with the 4. I got good vibes from him too, he seemed excited about building another type IV.

He’s going to check out the parts I have, see if they can be reconditioned to use in the new motor. I don’t think any of these will make the cut...

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Tdskip
post Nov 18 2020, 04:05 PM
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@infraredcalvin - ouch.

Sorry to see it man, ouch ouch ouch.
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Charles Freeborn
post Nov 19 2020, 12:45 PM
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Ooooohh.... that hurts... Did it destroy the crank too?

Keep us posted on the Fat Build. I'm penciling out a spare for my race car.
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GregAmy
post Nov 19 2020, 04:23 PM
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QUOTE(Charles Freeborn @ Nov 19 2020, 02:45 PM) *

Ooooohh.... that hurts... Did it destroy the crank too?

Keep us posted on the Fat Build. I'm penciling out a spare for my race car.

I can't see any way that the crankshaft survived that. Even if it did, I'd be hard-pressed to use it (I broke my 2L crank in the middle last year.)

The FAT team is rebuilding my 2L street car engine now...
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wndsrfr
post Nov 19 2020, 08:25 PM
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QUOTE(GregAmy @ Nov 19 2020, 02:23 PM) *

QUOTE(Charles Freeborn @ Nov 19 2020, 02:45 PM) *

Ooooohh.... that hurts... Did it destroy the crank too?

Keep us posted on the Fat Build. I'm penciling out a spare for my race car.

I can't see any way that the crankshaft survived that. Even if it did, I'd be hard-pressed to use it (I broke my 2L crank in the middle last year.)

The FAT team is rebuilding my 2L street car engine now...

(IMG:style_emoticons/default/agree.gif) FAT provided my 80mm stroker crank which is a new forging (not a welded up turned down OE crank) and put in 5 dowel pins vs. the stock one pin. IIRC the crank is only about $550 or so--deal for sure.
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rhodyguy
post Dec 2 2020, 09:29 PM
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Chimp Sanctuary NW. Check it out.
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FAT was the deal back in the Hot VW&Dune Buggy days. Do you have a HP/TQ target?
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infraredcalvin
post Dec 4 2020, 11:32 PM
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Yup, the old FAT was next to my dads work growing up, I used to wander in there and drool over all the shiny parts as a kid. Promised myself a FAT build someday when I bought my first 914 as a poor college student. Finally almost 30 years later here we are.

We’re talking about 2 different target builds depending on condition of my 78mm crank, 195 hp if mine is refurbish-able, or 205 using their 82mm crank. But we’re talking about a durable performance engine vs max hp.

As far as my blown parts , old engine had(s) a scat forged crank, it looks surprisingly good, some chew marks on the counterweight, needs to be checked out. Cam looks ok too. The carillo rod (and je piston) took the biggest bashing, bent and snapped the end cap bolts. Adjacent rod has a ding in it, and it’s piston has a ding on its face, they’re most likely junk.

What may have saved the crank was the thinner walls of the cylinder, looks like it pushed right through the top of it, taking a portion of the case with it.

All will get throughly examined, measured, and tested before reusing anything. Overall wear was surprisingly minimal inside engine, crank and cam bearings could use freshening, but could still see crosshatching on surviving cylinders, pretty good for a 20 year old build with mostly track miles... always on Brad Penn changed yearly.
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infraredcalvin
post Feb 3 2021, 09:03 AM
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UPDATE:

Motor build is progressing fine, ultimately decided on a dry sump 2165cc (78mm crank, 94mm pistons). Had a few parts test out unscathed and they’ll be reused, but going with some extra machine services for dry sump oiling.

Stay tuned, much more to come... ������ ������ ������
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yeahmag
post Feb 3 2021, 11:53 AM
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What dry sump pump will you be running? I've been successfully using the CB pump with mods for a few years now, but it's only autocross, so shorter run times, but very high G loads on the Hoosier A7's.
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infraredcalvin
post Feb 3 2021, 01:16 PM
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Sorry, I thought I had a picture of the clean pump, but the car previously had a heavy duty aftermarket pump, I don’t recall the name, it’s at the engine builders now, but it’s huge. Here it is, really dirty, during disassembly, internals are perfect. I have 2 filters, on on the stock 6 tank and the other on engine as seen.

I never had any oiling issues on track with this, 911 style thermostat, and rx7 cooler in front, using a real 6 tank.

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infraredcalvin
post Feb 3 2021, 01:18 PM
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Also used modified tuna can on bottom. Only concern I ever had was the hose being at the low point of car (4” per POC rules) although never had any issues...
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yeahmag
post Feb 3 2021, 04:56 PM
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Looks like a BugPack pump. Did you happen to record CHT on the cylinder you had a seat drop? Just curious if there were any warnings.
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ChrisFoley
post Feb 3 2021, 06:23 PM
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Autocraft Dry Sump Pump.
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infraredcalvin
post Feb 3 2021, 07:18 PM
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QUOTE(yeahmag @ Feb 3 2021, 02:56 PM) *

Looks like a BugPack pump. Did you happen to record CHT on the cylinder you had a seat drop? Just curious if there were any warnings.


No the pump had some other name inscribed, like SC performance, I just can’t remember. As for CHT no, the build was over 20 years old with unknown mileage. I could tell it was tired, I had planned on top end rebuild and ring check at the end of the season (1 more race). I was at chuckwalla when it broke, I had noticed a 4 sec add to my times from morn to afternoon sessions the previous day, at first I thought it was me. Then on Sun I could tell it was down on power, but I was determined to keep up/pass a spec boxster and I was pushing really hard - no overrevs, just hard on brakes and cornering. I had caught up to where the following lap I was going to challenge for position, then it let go... oil temps were at 190-200 as I just eyeballed in the straightaway right before the blow, nothing looked out of wack... I think it was just time.
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infraredcalvin
post Feb 3 2021, 07:26 PM
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BTW, the valve head broke off, no dropped seat. Probably from an over rev that kissed the piston when I missed 5th and locked the wheels in 3rd on turn 8 at Big Willow at my first race of the season....
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Tdskip
post Feb 4 2021, 08:27 AM
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Thanks for the updates - sounds like you have a good build plan underway.
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infraredcalvin
post Feb 4 2021, 10:32 AM
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QUOTE(Tdskip @ Feb 4 2021, 06:27 AM) *

Thanks for the updates - sounds like you have a good build plan underway.

Plans changing really fast, counting on things looking different Saturday (IMG:style_emoticons/default/stirthepot.gif)
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Tdskip
post Feb 4 2021, 10:36 AM
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QUOTE(infraredcalvin @ Feb 4 2021, 11:32 AM) *

QUOTE(Tdskip @ Feb 4 2021, 06:27 AM) *

Thanks for the updates - sounds like you have a good build plan underway.

Plans changing really fast, counting on things looking different Saturday (IMG:style_emoticons/default/stirthepot.gif)


One musty flexible like a lotus leaf grasshopper Antique horsepower where you find it
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infraredcalvin
post Feb 6 2021, 08:38 PM
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The 914 gods were on my side and I finally picked up my dream car! Many of you saw the euro 6 for sale for a short time, I’m the lucky bastard who brought it home! She’s right out of trailer from bringing her home, some spit and shine she’ll look almost too good to get out on the track. Thank you to prior owners PL (RIP) and his wife JL for taking a chance on me. More details after I get settled...

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BTW, anyone interested in a 71 914-4 race car with a freshly built FAT upright 911 fan motor (build currently in progress)? She’s light and fast... keep an eye on the classifieds as she’ll be up soon!
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