a few photos for you to enjoy (Cat Cams installed)

[dougyfresh]

Had a lot to do this past weekend.

fix coolant leak
paint various engine compartment pieces
install aftermarket cams


intercooler anyone?


welcome to my workshop:


out with the old, in with the new

Note: The bearing caps are specific for a particular cam bearing. They are also specific to the head. You can not go swapping caps between different heads or placing them in different locations on the same head. Hence why I have them laid out as if they were on the engine.





Hello Cat Cams


She's timed






Bam!






Black is such a great color

[317ssayzarc]

first! lol

nice Doug, go get er tuned

[cpu77]

Doug who is doing your tuning? ASP? Any idea of the gains with those cams?

[AudiA4_20T]

Doug who is doing your tuning? ASP? Any idea of the gains with those cams?

Hes probably picking up ~15awhp Id say

[Don Supreme]

Nice work...

Listen, why did you get the adjustable gear. Did Bob recommend it or you just felt like having it?

[Don Supreme]

Hes probably picking up ~15awhp Id say

Agreed, but not just peak power. The gains will probably show a 10-15 increase starting from 4000 RPM up to red line, but also a slight decrease in peak torque in favor of a longer, broader torque curve in the mid to upper rev range.

[Carlitos]

nice project!

[dougyfresh]

Nice work...

Listen, why did you get the adjustable gear. Did Bob recommend it or you just felt like having it?

Thanks. It was a fun project. I can now get the front end off including core support inside 20mins

Bob highly recommended it. I was curious to know why the OEM one wouldn't work so put that on just for kicks. I immediately noticed the tolerances are different on the Cat Cams camshaft. The OEM gear is loose fitting whereas the Cat Cams adjustable gear is a nice snug fit. Plus I needed the adjustablity in order to get the engine in time thanks to the 0.177mm we decked my head and block. Without the adjustability I was off 1/2 a tooth (not good since we're trying to squeeze lots of power out of this engine).

[Don Supreme]

See I am curious, because I just ordered a 3658 set from Bob and I told him to include the adjustable sprocket if it was recommended and he didn't so I am a little concerned. Especially since the 3658s are a little more aggressive than the 51.

[dougyfresh]

Your best bet is to call him up today and talk to him about it. I would think all Cat Cams are ground to the same diameter were the cam gear bolts on.

[Don Supreme]

I sent him multiple e-mails about it. I know DirtyBird is running set with the stock sprocket.

***
Tell us about your cam break-in procedure.

[dougyfresh]

I sent him multiple e-mails about it. I know DirtyBird is running set with the stock sprocket.

I didn't know Chris has the OEM sprocket. I also think he's got some 3658s like what you're going with.

Tell us about your cam break-in procedure.

I didn't even think about that. I first did a TB alignment since I had the TB off and stuff. Then I fired up the car. Once I got the car started the cover was rubbing on the cam gear so I shut her down. Took the cover off, ziptied the coolant and DV line away from the cam gear. Checked oil level and added more oil (since I changed it prior to cam install). Then fired her back up. Had my foot on the gas holding at 2,000rpm for a few minutes. My thought there was mainly to build up the engine temp to finish filling the coolant but I guess that doubled as 'cam break-in'. I don't know. 5mins. 10mins at 2000rpm perhaps. The lifters were loud again like when I first fired up the 2.0 from initial build. They eventually quieted down once oil pressure and temp was built up.

I was waiting for my neighbors to come bitching at me since it was 10/10:30 at night and I was making a lot of noise and had some high-power Halogen work lights shining on the car and driveway.

Once up to operating temp I finished clearing some codes (ABS and the like) and let it idle for a bit as I topped off the coolant and closed that system up. Then shut her down and went in for dinner.

After dinner I put the front bumper and headlights on so I could drive the car. Then went riping at WOT up and down my street a few times while logging and tweaking timing and boost. Revs up to 7000rpm once or twice but mainly revved up to 5800 or 6000rpm. Basically I just beat on the car like that one skateboard beating scene in the movie KIDS.

That was my night. Gonna get my dremel out and grind the high spots off my cam gear cover tonight and do some more logging. Most likely should be good to go for my trip up to Maine tomorrow.

[dirtybrd]

I do run the stock pulley, I want to put an adjustable one on to see if it helps with my boost loss or if my 3071 is running out of steam, and to bring up my cranking compression. That sound about right for break in. You just need to get them to temp with lots of oil.

[vdubstreets]

Looking good! break in on cams on my vr was just holding idle for a little while get oil up in the lifters. new valve springs i assume?

We really need to get some pictures, I just have been so busy every weekend sorry about that. I'm going up the the catskills this weekend too. Maybe I'll give you a ring this week see if you wanna take a cruise down if not we'll have to figure something out not this but next weekend. I should have all my random parts today.

[dougyfresh]

/\
Good deal. Unfortunately I have no weekends free between now and early September. Lets wait until you get your car back together and then we'll go get some photos.


No. My head has Supertech exhaust valves, OEM intake valves, OEM lifters and OEM springs & retainers. No plans to rev above 7500.

I had the cams doused with lots of oil when I assembled them and before I bolted the valve cover on. I think everything went smoothly. After holding at 2000rpm for a while the erratic idle disappeared.

[A4ringedONE8T]

Looking forward to your retune and dyno! Have a safe trip!

[dougyfresh]

Looking forward to your retune and dyno! Have a safe trip!

So am I. I'm getting sick of 11psi. It feels way too slow. One more month and things should be good to go. I can not wait.

Thanks. Trip is going to be fun. Its been raining lots up there so we're going to have some nice rapids. Overnight white water rafting trip down the Penobscot.

[Don Supreme]

What are you waiting on for the tune, engine break in?

[mister_tu]

Overnight white water rafting trip down the Penobscot.

Class 6 FTW!!

I wouldn't know anything about it.

[Ill 3.0]

Penobscot has one class 5 if the water is high enough. Kennebec is fun too, but only class 4s. I've done both several times (raft, not ballsy enough for kayak yet).

Anyway, have fun. I'm jealous.

[mister_tu]

I have friends that go to Kennebec frequently and say that the class 4's are relatively easy. I would think someone of my athletic prowess could probably manage a class 5.

[aaronz]

That front end shot, without the bumper on, looks mean! 2nd one down. Kind of reminds me of the Home Alone furnace that makes noise and eats little kids.

Got a bigger size by chance?

[dougyfresh]

/\
I usually go down and raft the Gauleys and New River in WV (know a ton of guides down there) but my friends decided to go up to Maine this year.

What are you waiting on for the tune, engine break in?

Engine is fully broken in. I have 2700miles on it right now. I'm waiting for September 13th.. My appointment with ASP. I set it out that far because this weekend I'm up north. Next weekend I'm in Cali. The following weekend I'm in Baltimore & DC (we should meet up) and then the weekend after I'm in northern VT biking. I want my Avant for those trips because 28-30mpg is much better than 20mpg (Jeep mpg) and its a lot more comfortable than driving my Jeep Cherokee on long trips. Story of my life. 50million things going on at once.

That front end shot, without the bumper on, looks mean! 2nd one down. Kind of reminds me of the Home Alone furnace that makes noise and eats little kids.

Got a bigger size by chance?

Yes. go to my Flickr account http://www.flickr.com/photos/omega29 and search for the 2.0 build photo album. If you can't download the larger ones shoot me a PM and I can email them to you or provide you with a link. I've found the 500x375 are great for posting here since they are quick to load and fit on my tiny iBook 12" screen.

[koolade9]

Class 6 FTW!!

I wouldn't know anything about it.

River Guide: So... are you a class... 4,5?
Tom Marshall: Yeah? Yeah? Why don't you try to put those numbers together. Yeah. I shot a class 45, and haven't lost a man yet.

[Grenade]

I sent him multiple e-mails about it. I know DirtyBird is running set with the stock sprocket.

***
Tell us about your cam break-in procedure.

Correct me if Im wrong but the cam is a Roller camshaft, there for no need for a break in ? (Other than making sure nothing is fubar'd before you start)

I've never broken in a roller cam, tons of hudraulic, but zero roller.

[dirtybrd]

Not roller, hydraulic tappet.

[Grenade]

Not roller, hydraulic tappet.

You're kidding me right? I can not believe that these car's are not roller? WTF In that case, did ya get new lifters too?

[ladedruck]

You're kidding me right? I can not believe that these car's are not roller? WTF In that case, did ya get new lifters too?

Roller tappets in a bucket ohc motor? I hope you are the one kidding. The last roller tappets I used were in a 400 sbc motor in 1989

[Grenade]

Roller tappets in a bucket ohc motor? I hope you are the one kidding. The last roller tappets I used were in a 400 sbc motor in 1989

See, I come from the 4g63 world, where roller tappets are used, not some garbage flat tappet. No wonder 1.8s make such low hp.

[Audi Skate Snow]

I just swapped out a cam we had in a 350, we had like a .328 lift hydraulic cam, and swaped over to a .547 lift, solid lifters and 1.5 roller rocker arms.. made about 50whp

One thing that helps that not to many people know how to do is Degree a cam. Just cause its a new cam doesn't mean its dead nuts on what the cam card says...so after all measurements it might be advanced or retarded.. helps a lot to know.

[317ssayzarc]

I just swapped out a cam we had in a 350, we had like a .328 lift hydraulic cam, and swaped over to a .547 lift, solid lifters and 1.5 roller rocker arms.. made about 50whp

One thing that helps that not to many people know how to do is Degree a cam. Just cause its a new cam doesn't mean its dead nuts on what the cam card says...so after all measurements it might be advanced or retarded.. helps a lot to know.

Well you really need an adjustable cam to do that on the dohc 20v head

[Audi Skate Snow]

Well you really need an adjustable cam to do that on the dohc 20v head

ahah i was just refering to a little small block we built this week..

[Audi Skate Snow]

Had a lot to do this past weekend.

fix coolant leak
paint various engine compartment pieces
install aftermarket cams

Dougy, i havnt been on much but just got a chance to check out all the new shit you have done... saw your little photo gallery you have.

Congrats man!, thing looks like it is going to be a beast!

[317ssayzarc]

ahah i was just refering to a little small block we built this week..

Oh I know, Ive built a handfull of muscle motors... A worked 454 was my crown jewel

[NightRider]

nice man, your husky is fucking cool as shit!

[koolade9]

One thing that helps that not to many people know how to do is Degree a cam. Just cause its a new cam doesn't mean its dead nuts on what the cam card says...so after all measurements it might be advanced or retarded.. helps a lot to know.

+1

I've seen many-a-4g63 cams that are off... not all, but some brands that will remain nameless... Not sure about Cat cams though...

moreso, not sure how you'd adjust the intake cam independently unless they make adjustable cam gears for the back side...

[dougyfresh]

I just swapped out a cam we had in a 350, we had like a .328 lift hydraulic cam, and swaped over to a .547 lift, solid lifters and 1.5 roller rocker arms.. made about 50whp

One thing that helps that not to many people know how to do is Degree a cam. Just cause its a new cam doesn't mean its dead nuts on what the cam card says...so after all measurements it might be advanced or retarded.. helps a lot to know.

That 350 must sound so bad-ass now! I have a very mild OEM Corvette cam in my 350 for my 1972 Chevelle. Even that mild cam sounds great.

In regards to degreeing them. I'm fairly sure BobQ sets them up and verifies TDC prior to shipment. He has a whole separate engine with a degree wheel that he uses just for that purpose. Now, he didn't put my cams on that engine but he did mark TDC and pin the cams for me while I was there. I sent him photos of them installed and he has blessed my install and orientation of the cams.

With the adjustable exhaust cam gear I'm able to advance/retard timing accordingly (as we all know). Bob marked where TDC is on the intake cam. The 3651s keep the VVT active so you just align 16pins on that rear chain between TDC on the exhaust cam and TDC on the intake cam. If the intake cam is off slightly that doesn't matter (damn VVT). What matters is the 16 pins between them.


Thanks Charlie. This has been a fun build and I've learned a shitload. There are still some more little things I need to finish but the bulk of the work is done. I'm going back to AutoSpeed in early September for a complete rewrite of my software and then we'll really see what this thing is putting out. Shortly thereafter I will be making a nice heatshield for the turbo intake and gutting the Evap and PCV system in favor for a filtered catch can system.



This husky? He kicks ass.. and is also a fugitive from the local police. Haha

[CO AVANT]

If anyone needs a adj cat cam gear I have a brand new one I will sell you for less than Bob can do.

[koolade9]

That 350 must sound so bad-ass now! I have a very mild OEM Corvette cam in my 350 for my 1972 Chevelle. Even that mild cam sounds great.

In regards to degreeing them. I'm fairly sure BobQ sets them up and verifies TDC prior to shipment. He has a whole separate engine with a degree wheel that he uses just for that purpose. Now, he didn't put my cams on that engine but he did mark TDC and pin the cams for me while I was there. I sent him photos of them installed and he has blessed my install and orientation of the cams.

With the adjustable exhaust cam gear I'm able to advance/retard timing accordingly (as we all know). Bob marked where TDC is on the intake cam. The 3651s keep the VVT active so you just align 16pins on that rear chain between TDC on the exhaust cam and TDC on the intake cam. If the intake cam is off slightly that doesn't matter (damn VVT). What matters is the 16 pins between them.


Thanks Charlie. This has been a fun build and I've learned a shitload. There are still some more little things I need to finish but the bulk of the work is done. I'm going back to AutoSpeed in early September for a complete rewrite of my software and then we'll really see what this thing is putting out. Shortly thereafter I will be making a nice heatshield for the turbo intake and gutting the Evap and PCV system in favor for a filtered catch can system.



This husky? He kicks ass.. and is also a fugitive from the local police. Haha

Keep up the good work!!

[Elliott]

Driveway wrenching FTL!