lookforjoe

03 Dual VVT head With Enem Cam Install

93 posts in this topic

Installed the newer head & Enem Cams today (started yesterday, but had to remove the cams twice due to issues with the reference markers/ Volvo locking tool.

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These cams cannot be locked from the rear as with Volvo cams, so I had to improvise to get the hubs torqued to 120Nm.

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reference markers indicate 1.5mm INT lift 1.2mm EXH lift @ true TDC

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IAT bung added to my modded ME7 NA manifold

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Have to wrap up the ancillary install & get all the plumbing back in place. Has to wait until Thurs, have Inlaws visiting at the moment

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Nice work Joe. . . . .Did Enem do a custom grind for you ? What are you expecting to benefit the most from the swap ?

.......Dave

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Nice work Joe. . . . .Did Enem do a custom grind for you ? What are you expecting to benefit the most from the swap ?

.......Dave

Not custom grind, these are their Y21 dual VVT cams, 264/110/9.6/0.8 cam set. It's been so long since I originally researched & investigated cam options, & ordered these, that I can't recall the specific performance gains.

My main goal is to improve breathing to take advantage of the turbo I'm running. I seem to have hit several walls with the stock (-'98) head & intake, and have not been able to get the level of gains one might expect from the turbo & levels of boost I have been working with. I will dyno this @ Carlisle in May, so I have some time to play with the cam timing & the tune to see what I can do with it. 312WHP was my best (FWD mode) number last May, so I'm hoping for AT LEAST 350WHP this year!! Seriously, though - the main goal is get have a truly useful powerband, not a setup that has to be flogged to death & high rpms' to get power out of it.

I'm looking forward to seeing how this thing runs tomorrow!!

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Gotcha. . . . .Suck's when you put as much time & effort into something as you have & hit a wall that's unexpected. Hope everything work's out. waiting for your update.

.......Dave

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Warmed the engine up, checked fluids. drove around the block, low rpms, 1-2nd gears watching the vacuum, as it is markedly different with the high lift cams. Engine died as I came over the crest of a small hill. Pulled over, popped the timing cover, bumped motor over in gear to check marks. Crank & exhaust reference markers OK, intake gear had spun in the hub (CC, which should retard & increase clearance). Loosened the three bolts, rotated the cam back to center. Cranked it over, definitely has no compression.

Pushed the car the block home.

All intake valves bent

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All pistons are marked in the valve recess

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two of the three threaded holes in the intake hub are stripped - I tried gently snugging them (they are only M6), and could tell that they weren't tightening.

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Still haven't figured out how I ended up with valve to piston contact - I did rotate the crank 4 revolutions before I even THOUGHT about starting the engine, to be sure that there was no interference. Obviously something was amiss.

I'm going to add a second oil filler neck, and remove the baffle from the existing, so I can check actual lift on #3 cyl, instead of relying on the reference slots on the back of the cams. The head is back at the machine shop, he's optimistic that he can just change the valves, the seats don't look damaged - the guides he will check when the valves are out.

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Added to second filler neck - for checking valve lift on #3

IMG_8735.jpg

Picked up the 10 new valves yesterday afternoon, so I'll drop those & the cam cover off at the machine shop on Monday

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This also arrived yesterday from KalmarUnion (UK) - so that has to be planned for installation smile.gif

XRKUSMFlywheel.jpg

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Ment to ask you over on VS, why not go with Viva's SM flywheel. I thought they were only 600. . . .and another member from SS PM'd me a link to get it for 540 from Ultrarev with free shipping. . . . .? ?

.........Dave

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That brings tears to my eyes

The pistons come with recesses, I'm not sure it's that bad. The motor was running @ low rpms when it happened. I'm hoping for the best, I'm not dropping the bottom end in my driveway laugh.gif

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I didn't know VIVA had a SM replacement for DM setup (uses existing S60R DM Clutch) - that's what this is - not a SM replacement for SM stock.

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I didn't know VIVA had a SM replacement for DM setup (uses existing S60R DM Clutch) - that's what this is - not a SM replacement for SM stock.

I'd have to go back & check . . . I thought Viva's was the same(using the DM clutch) but maybe not.

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I'd have to go back & check . . . I thought Viva's was the same(using the DM clutch) but maybe not.

Where is a link to their site? Googling it doesn't bring it up. Moot point for me, but if one is available this side of the pond, it would be good to know.

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As far as I know, Viva does not have a flywheel that converts the dual mass M66 application to the single mass 850R style application. Here is a link to the clutches and flywheels: http://www.vivaperformance.com/categories/Volvo/V70-classic/Drivetrain/

Good selection though.

I stand corrected: http://www.vivaperformance.com/categories/Volvo/S60R-%26-V70R/Drivetrain/

I was looking on the wrong page! Sorry.

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As far as I know, Viva does not have a flywheel that converts the dual mass M66 application to the single mass 850R style application. Here is a link to the clutches and flywheels: http://www.vivaperfo...sic/Drivetrain/

Good selection though.

I stand corrected: http://www.vivaperfo...70R/Drivetrain/

I was looking on the wrong page! Sorry.

Looks like a KU flywheel. Would have likely ended up slightly cheaper, given that shipping in the US can't be £100!!! biggrin.gif

KU flywheel

XRKUSMFlywheel.jpg

(bolts not included)

"Viva" version

M66AWD_single_mass_flywheel__27788_zoom.jpg

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The pistons come with recesses, I'm not sure it's that bad. The motor was running @ low rpms when it happened. I'm hoping for the best, I'm not dropping the bottom end in my driveway laugh.gif

IMG_8716.jpg

Aaaah. Doesn't look quite as bad in that case. Still ouch though. Hey i wasn't even game to pull the head on mine when I, errm, cooked it. Now that the original motor is in my garage I am arming myself with the assorted tools required and am going to give it a crack myself :P

How safe is it to leave one of there engines on an engine stand for extended periods BTW?

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Aaaah. Doesn't look quite as bad in that case. Still ouch though. Hey i wasn't even game to pull the head on mine when I, errm, cooked it. Now that the original motor is in my garage I am arming myself with the assorted tools required and am going to give it a crack myself :P

How safe is it to leave one of there engines on an engine stand for extended periods BTW?

Indefinitely, I'd say. I have my old short block in the basement, used it for reference & mock up for the new head/cams.

XRB5254T2EngineCovers2.jpg

I would recommend coating the bores with some grease if you plan to leave the head off for an extended time period.

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Thanks mate. I hope that's a mockup assembly with the phillips head bolts holding the top cover on :)

Those are the torx screws for the injector cover - there are no cams installed in that photo...

Put the head back on last night.

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When I get home, I'll install the cams & check valve lift & piston clearance with a boroscope - not taking any chances on Take II biggrin.gif

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Put the cams back in - aligned the reference markers, set & torqued the cam hubs/gears so that the slots are straight up with the timing as Enem spec'd @ TDC on #1

With the piston @ TDC, I rotated the intake cam until the valve contacted the piston. It took about a tooth of advance to get there

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Using a boroscope, I looked at the clearance @ 1.5mm lift, then opened the valves - here's three stages viewed with the boroscope

clearance @ 1.5mm lift

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clearance @ 1/2 tooth advance

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approx 1 tooth advance

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I advanced the cam gear in the slots so that there is less than 1 tooth advance left.

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Difference between early & late breather box - outlet is in the same spot, cam vent is moved outward & cam vent hose is revised to accommodate the change

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Added my drain back port & installed

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Somehow I put my longer intake manifold bolts (m7x40) somewhere very safe, now I can't find them :( - so I took some longer bolts & threaded them further down the shank & shortened them to 40mm.

Tomorrow I just have to put the intake & plumbing back on & it'll be ready to roll. :)

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My solution to the breather box issue - the cam vent hits the bottom of the intake, so I chopped that down & added a new port just a little back. I have a used one that I cut in half, so I knew where it was safe to drill without interfering with the vent baffling

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All clear now, manifold fits over , no problem

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All back together & running :D

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Fuel & FPR vacuum hard lines are run under the upper timing cover, I notched it in two places to clear the lines.

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Just drove it gently around, so I don't yet know how it will perform. Vacuum is good at idle, back to 18inHg

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So you'll be puckering the old spincter for a little while then as you putt about nervously :rolleyes:

laugh.giflaugh.giflaugh.gif

Umm, yeah

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