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> 914-x Time Trial Build
Trackd
post Nov 5 2020, 09:57 AM
Post #21


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I haven't tracked at all this year and its killing me. So I decided to rush it and put everything together for NASA event at Summit Point.

I got an alignment locally

My specs are

Front
0 Toe
-3.7 Camber
6 Caster

Rear
1/16 Toe in
-1 Camber


(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23854-1604591874.1.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23854-1604591874.2.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23854-1604591874.3.jpg)


I drove the car on a base map 400 miles to my buddies at Ptuning in Manassas Virginia to get tuned.

Dyno Pull after being tuned on 93. It ended up making 220 hp more than I expected.


https://www.youtube.com/watch?v=ptXrJo9JJHA



(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23854-1604591874.4.jpg)

NASAMA Summit Point

Well I did not have a great time at the track unfortunately. The first two sessions was me feeling the car. The car felt very nervous...

However I discovered My front bar was loose. After adjusting my tire pressures and dropping them to 24 psi cold and tightening my front bar to full stiff. The difference was night and day! I was able to really eat up some cars in DE3 various e90s and 911s. The power to weight combo was awesome. The back straight I managed 133mph with still some room to go. However I haven't braked that hard yet so I eased off. I managed a 1:26:2 in my 3rd session. I was really stoked to get it down to the teens. This car has so much potential! I was able to take many different lines that threw people off.

After 6 hard laps I started hearing a noise... I pitted in and it sounded like rod knock...

I dropped the pan... and my weekend was done (IMG:style_emoticons/default/sad.gif)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23854-1604591875.5.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23854-1604591875.6.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23854-1604591875.7.jpg)

The 2nd rod bearing decided to let go.... After inspecting the other bearings. This engine was definitely neglected.. The oil also came out pitch black... with only 400 miles.. Granted... This engine was from ebay.... Its always a gamble.

I managed to borrow my friends car dolly, and towed it to my parents house in VA. I return my friends stuff and used points to fly back home to Buffalo. I was pretty bumed about it.. I was hoping it would last quite a while before letting go. These engines are pretty stout/reliable. I really should of inspected the bearings before putting the motor in.

Moving forward, I really did not want this happening again so I ordered a 4piston built shortblock with increased compression ratio to 12:1. The Shortblock will have ACL race bearings and forged internals. Lead time is 7 weeks. Hopefully I can get it before 2020 ends.

Now I gotta figure out how to get my car back.. -_-

Shameless plug.. If you like what you see. Buy a sticker! https://www.trackd.us/shop
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Michael.lescault1@gmail.com
post Jan 15 2021, 08:48 AM
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Excellent fab work!!! Definitely interested in the dimple dies! What CAD program are you using for your 3D printed parts? If interested, I could use some design help on a custom intake manifold for my 3.5L all aluminum Olds V8 that I will be twin turboing in my 72 914. I am currently fabbing an intake from 1/2" 6061 Aluminum plate and 1.5" X .120 wall aluminum tube for the individual runners to plenums over each valve cover. The plenums will each contain an air to water intercooler to keep the cold side turbo to plenum run super short. Also, I am building a custom aluminum oil pan with an oil sump with four flaps to help the oil in the sump under all situations. Would love to 3D print the valve covers as well!
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Franky_Four_Fingers
post Jan 17 2021, 02:22 PM
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I'm wondering if your failure was caused by oil starvation during cornering, I believe I read somewhere that the K20/24 is known to have this issue.

Perhaps a baffled sump (or even dry-sump if you have the budget) is in order?
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Trackd
post Jan 18 2021, 12:32 PM
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QUOTE(Franky_Four_Fingers @ Jan 17 2021, 03:22 PM) *

I'm wondering if your failure was caused by oil starvation during cornering, I believe I read somewhere that the K20/24 is known to have this issue.

Perhaps a baffled sump (or even dry-sump if you have the budget) is in order?


Figured out the issue recently. While k24s do have documented failures similar, I was running an upgraded oil pump with two baffles. This combo is a proven setup for durability.

The issue was, fuel mixing with the oil. The car was running super rich before tuning. I drove 7 plus hours to get it tuned however I didn't change the oil before going on track. So its totally my fault but I was in a rush to get everything done in time. I didn't think of it becoming an issue. The give away was the how black and how broken down the oil was. Also the oil pan did smell like fuel. After opening up the block all cylinder walls and bearing have some sort of wear. The walls weren't scored but it did seem there was a lack of lubrication.

With that said. I am planning on going dry sump anyways so I won't have to worry about oil issues all together. This will also be a new built block so longevity is the name of the game for me. I am going with Dailey engineering dry sump setup. So far he has been very helpful in configuring a setup for me.
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Trackd
post Jan 18 2021, 12:36 PM
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QUOTE(Michael.lescault1@gmail.com @ Jan 15 2021, 09:48 AM) *

Excellent fab work!!! Definitely interested in the dimple dies! What CAD program are you using for your 3D printed parts? If interested, I could use some design help on a custom intake manifold for my 3.5L all aluminum Olds V8 that I will be twin turboing in my 72 914. I am currently fabbing an intake from 1/2" 6061 Aluminum plate and 1.5" X .120 wall aluminum tube for the individual runners to plenums over each valve cover. The plenums will each contain an air to water intercooler to keep the cold side turbo to plenum run super short. Also, I am building a custom aluminum oil pan with an oil sump with four flaps to help the oil in the sump under all situations. Would love to 3D print the valve covers as well!


Shoot me an email, Info@trackd.us

I use Solidworks 2020. Ill be happy to help.

Yea the dimple dies work great so far and are made of polycarbonate. Ill be happy to sell you a set pretty cheap.
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