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Audi V10 Odd Fire Engine Setup
Posted:
Wed May 08, 2019 11:59 amby rayhall
I have a M150GPR with the Audi 5.3L package. My engine is from the RS6 and is 5.0L It has a odd fire crankshaft. With a 18 deg offset which by my thinking is 90-54-90-54-90-54-90-54-90-54 deg spacing. My problem is how to set this up in the software is it TDC Number 2 cylinder 90 + 54 = 144 then TDC Number 3 cylinder 144 + 90 = 234 and so on.
I have included a drawing of the cylinders and firing order as I am running the engine now with 72 deg spacing. This is not right. The block had a 90 degree V
Ray.
Re: Audi V10 Odd Fire Engine Setup
Posted:
Wed May 08, 2019 2:21 pmby rayhall
I think this is correct. Can anyone confirm.
Ray.
Re: Audi V10 Odd Fire Engine Setup
Posted:
Wed May 08, 2019 5:17 pmby Stephen Dean
Hi Ray,
I have the following.
1 = 0
6 = 90
5 = 144
10 = 234
2 = 288
7 = 378
3 = 432
8 = 522
4 = 576
9 = 666
Re: Audi V10 Odd Fire Engine Setup
Posted:
Thu May 09, 2019 11:08 amby rayhall
Stephen,
Thank you I see my mistake. I still have a consern I do not know if it is 90-54-90-54 or 54-90-54-90. Cannot find anyone with the information on this engine.
Ray.
Re: Audi V10 Odd Fire Engine Setup
Posted:
Thu May 09, 2019 5:42 pmby Stephen Dean
Hi Ray,
From what I have found online, the pattern starts with a 90 degree cylinder angle, but I have no way of verifying this is correct.
Re: Audi V10 Odd Fire Engine Setup
Posted:
Sat May 11, 2019 3:18 pmby GE Race Tune
Ray,
Stephen is correct in his numerical cylinder/TDC listing..
We run this on our Huracan 5.2 odd fire engine
Re: Audi V10 Odd Fire Engine Setup
Posted:
Wed May 22, 2019 9:21 pmby rayhall
I just changed the cylinder TDC's and the engine sound so much better. I will have to retune it now.
Thank you for your help
Ray.