284 replies to this topic

[lookforjoe]

Captain Bondo, on 01 February 2011 - 08:47 AM, said:

I ended up around 1 degree advanced on the exhaust cam and 3 degrees retarded on the intake cam. Totally different cams and a relatively big turbo though so I doubt your settings will be similar.

What I did find though is I could not tune them on the street. I tend to think my "ALL GLORY TO THE HYPNOTOAD dyno" is good, but I was way off when i actually tested it on a dyno. I had everything far too advanced, which suprised me.

Thanks for the input. I agree that street tuning is impractical, subtle changes in power band cannot really be discerned. What I have focused on is the part throttle/low end 'feel'. I will be going back to dyno my current setup soon- after getting IPD's cam tool & finding my exhaust timing was way off where I thought it was, I settled on EXH 2º Adv & INT 2º Retard. They were at EXH 2º Retard & INT 0º, which made initial low rpm accel rather flat. EGT's have gone up slightly in the 4th gear 6-7K WOT range - I'm at 1300ºF if I shift @ 7K ( I don't normally, but I wanted to see what they were climbing to.

[s60wot]

So, after reading all of this I think I have 2 choices:

1. Use my current 01 T5 head and cams (port, polish, 3 angle)
2. Use the 02 head I bought with my 01 T5 cams (port, polish, 3 angle)

Now, where do i get it done right?

Has anyone used a machine shop with a CNC file to do these newer heads?

Anyone use ever use http://www.r-sportin...l.com/index.php for head work on a newer style head for P2 car?

[BlackT5]

There must be a bunch of shops in FL to choose from? Doesn't have to specialize in Volvo to do a good job.

Edited by BlackT5, 12 January 2012 - 08:55 PM.

[s60wot]

True if you want hand porting.
I was looking for CNC machine job by someone that has done a newer T5 head.
It's also nice to get a reco from someone that has had it done rather than just take it somewhere and hope for the best.
I took a turbo to a local machine shop to have a hole plugged and another one opened up and threaded.
He charged me $90 for about a $40 job and the hole was too shallow for the banjo bolt so I ended up grinding the bolt shorter rather than take it back and wait for him to fix it.

Edited by s60wot, 12 January 2012 - 09:40 PM.

[Deimos]

Hanks, on 11 January 2010 - 05:10 PM, said:

NA VVT cars had VVT on the intake cam instead of the exhaust cam.

I would like to note that as far as I can find out NAs did not get VVT on the intake cam until 2000. My '99 has the newer head style but no VVT. Which makes me wonder if the cams in a '99 NA would be useful to a build, but I'm not about to tear my head apart to check the journals. Maybe worth someone else looking into, hope I've helped a little.