OM 603 - 617 I.P. Relief Valve

STD Tuning Engine OM 603 - 617 I.P. Relief Valve

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zeeman

Holset

444

08-11-2016, 04:50 PM #1

Anyone use a 617 I.P. relief valve to replace the non adjustable 603 one. I understand they are compatible, any input on this?

zeeman

08-11-2016, 04:50 PM #1

Anyone use a 617 I.P. relief valve to replace the non adjustable 603 one. I understand they are compatible, any input on this?

awsrock

300SDL / HX30 / 90cc

179

08-11-2016, 05:12 PM #2

Yes, I did this on my pump. The bolt it sticks out slightly farther but it is the same thread and fits the banjo fitting, etc.

Can't comment on performance much, I had it on my stock IP with the Greazzer spring and it seemed to help a bit, but I put the old one on my upgraded pump when I was trying to bleed it thinking that maybe that was an issue...turns out the rack was stuck. Anyway, going to be putting the 617 bolt back in soon.

This post was last modified: 08-11-2016, 05:13 PM by awsrock.

awsrock

08-11-2016, 05:12 PM #2

barrote

Superturbo

1,627

08-12-2016, 04:21 AM #3

helps nothing. u can use it if u need any kind of regulation other than the .4 bar on the 603.

FD,
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barrote

08-12-2016, 04:21 AM #3

helps nothing. u can use it if u need any kind of regulation other than the .4 bar on the 603.

FD,
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