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VW/Audi 07K (2.5L 20V I5) Swap Thread

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Old 06-05-2024, 10:09 PM
  #2626  
Its_Lobelt
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Originally Posted by V2Rocket
What’s the point of an engine swap where you have to use a specific hard to find crankshaft?

Isn’t the point of the engine swap something that makes more power while being easier/cheaper to build and run than the stock one?

What’s wrong with a standard 07K crank ?
You’re not wrong, but my car stopped making sense after the entire thing was torn to pieces and rebuilt for no other good reason than fun. lol
Old 06-07-2024, 05:22 PM
  #2627  
alxdgr8
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Originally Posted by V2Rocket
What’s the point of an engine swap where you have to use a specific hard to find crankshaft?

Isn’t the point of the engine swap something that makes more power while being easier/cheaper to build and run than the stock one?

What’s wrong with a standard 07K crank ?
It's not required, it's just a nice to have factory 8 bolt forged crank. And for a while they were on closeout for stupid cheap.
Stock one comes in forged and cast varieties, but with 6 bolts. So more machining work for high power builds to pin and/or add extra bolts.
Old 06-07-2024, 05:27 PM
  #2628  
V2Rocket
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And the added bolts/pin ups the power capacity? Do the factory flywheels/etc slip on the 6 bolts somehow?

On the V6 in my car there are only 6 bolts but GM didn't even use a pin on the end of the crank. Guys make 500+ hp with this engine and boost without any issues in that department.
Old 06-14-2024, 10:03 PM
  #2629  
rmm177
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Have you tried fitting your ARP main stud kit yet. I bought the set from integrated engineering and tried installing it on a CBUA engine and on 5 of the caps the nut side of the threads are too large to fit inside the cap and the #4 cap that I did the thrust bearing mod already on has a tighter tolerance hole and the body of the ARP stud won't even go into that one. I installed the stud on the other 5 caps after the caps were in place and they do not seat all the way down and stick up about 3/8-1/2" to high imo
I just got around to trying to reconnect the cylinder head to the block. The ARP studs are M10-1.25 and my block needs M10-1.5. I emailed my supplier and they state the ARP studs in M10-1.5 are no longer available. I went out to the local Advance auto supply and bought head bolts. They look like they are correct, l’ll try them in the morning.

Bob
PS: boost brothers are finally taking orders for swap kits again, I’ve got mine on order.

Last edited by rmm177; 06-14-2024 at 10:05 PM.
Old 06-17-2024, 09:35 AM
  #2630  
Aleutian
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Originally Posted by Its_Lobelt
Does anyone know where to source a crankshaft from? I've looked everywhere for this part number 07K105101P and it seems to be backordered at every dealer. Anyone got a spare for sale?
Try searching for this part number 07K105101H and verify the company has availability on it before placing the order.


RMM, I purchased the integrated engineering ARP head bolt kit ARP-CVB1 and that fit great. They do not appear to be selling this on their site anymore but a couple suppliers say they have it in stock yet. The ARP main stud kit did not fit right, I ended up taking the block and caps into the machine shop again to have the main caps holes reamed out to accept the main studs.
Old 06-17-2024, 10:09 AM
  #2631  
rmm177
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RMM, I purchased the integrated engineering ARP head bolt kit ARP-CVB1 and that fit great. They do not appear to be selling this on their site anymore but a couple suppliers say they have it in stock yet. The ARP main stud kit did not fit right, I ended up taking the block and caps into the machine shop again to have the main caps holes reamed out to accept the main studs.
I commend you for your effort. The ARP stud kit I’m returning is ARP-CVB2. I installed The head bolts (Victor Reinz brand) I bought locally from Advanced auto supply and they fit fine, and torqued well, I could “feel” the stretch as I turned the last 90 degrees. Not fancy like ARP studs, but hopefully will hold for the moderate boost levels I’m planning.

Bob
Old 06-21-2024, 09:45 AM
  #2632  
Aleutian
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Originally Posted by rmm177
I commend you for your effort. The ARP stud kit I’m returning is ARP-CVB2. I installed The head bolts (Victor Reinz brand) I bought locally from Advanced auto supply and they fit fine, and torqued well, I could “feel” the stretch as I turned the last 90 degrees. Not fancy like ARP studs, but hopefully will hold for the moderate boost levels I’m planning.

Bob
The ARP-CVB2 kit is for the main caps that secure the crank to the block
Old 06-21-2024, 10:08 AM
  #2633  
ealoken
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Originally Posted by Aleutian
The ARP-CVB2 kit is for the main caps that secure the crank to the block
Just remember to line bore / hone if you change to ARP bolts.
Old 06-26-2024, 01:56 PM
  #2634  
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349.5 lb

As picked up from the junk yard. $250 120k 2013
Old 06-26-2024, 04:25 PM
  #2635  
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As picked up from the junk yard. $250 120k 2013
what’s your plan for your build? Turbo? NA? What car are you starting with? What’s your goals?

Bob
​​​​​​​
Old 06-26-2024, 05:32 PM
  #2636  
pyropete125
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Originally Posted by rmm177
what’s your plan for your build? Turbo? NA? What car are you starting with? What’s your goals?

Bob
Turbo track car only. In my 924S.

I contacted boost brothers and they said if I bought now maybe by end of year they can get a kit for me.. So it looks like I'm going to fab up most everything..luckily I am a welder and I have a 2 axis cnc mill and a couple of lathes. Nothing internal engine wise now. It may eventually end up in our lemons 944... but that's way down the line if ever

I"m modding a 02m tranny to make the adapter to the torque tube. I'll have to mod the oil pan like people have.

The oil filter plate I am going ro maybe tap the block and run an fittings. Block the water lines there also. Make my own rear water neck and vacuum pump delete

Not sure what to do with the water pump yet. Need to do some more research.

No power steering just an alternator needed. I am going to make my own plate valve cover.

Pete

Last edited by pyropete125; 06-26-2024 at 06:06 PM.
Old 06-26-2024, 11:37 PM
  #2637  
rmm177
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Since you’re not waiting for the BBG kit, Quicktime makes a bellhousing that available immediately, deeply discounted now makes it reasonably priced.

https://www.jegs.com/webapp/wcs/stor...0002&langId=-1

Old 06-27-2024, 02:24 AM
  #2638  
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Originally Posted by rmm177
Since you’re not waiting for the BBG kit, Quicktime makes a bellhousing that available immediately, deeply discounted now makes it reasonably priced.

https://www.jegs.com/webapp/wcs/stor...0002&langId=-1
Wow I hadn't seen it dropping in price so much! I remember how Allan did a bunch of R&D with them and then they came back at the end with their new price several times the original quote which of course lead BBG to make their own. Wonder if they made a bunch and then nobody bought them, hence the fire sale now.
Old 06-27-2024, 12:58 PM
  #2639  
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need some sensor identification Yellow highlighted

Starting top left - 1)cam position
Top right - 2)cam timing solenoid r?
Right side top to bottom on right-
3) ?
4) ?
5) ?
6) crank sensor?

Behind the water pump thats the inlet is in to the lower radiator ?

Back of head is the outlet?

Thanks
Pete

Last edited by pyropete125; 06-27-2024 at 10:03 PM.
Old Yesterday, 07:38 PM
  #2640  
Danny8774
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From what I can tell you are correct. I'm not sure what to do with the oil control valve, may need to just leave it unplugged.

1 - Yes
2 - Yes
3 - Blue --> oil pressure switch
4 - Brown --> reduced oil pressure sensor - supposed to go from open to ground between 42-31psi
5 - Black --> I believe is the oil control valve for VVT
6 - Yes


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