Update on my hi-miler Z project

[RHanselman]

Originally Posted by limey

Guys,

we rebuilt the motor ourselves. Stock motor rebuilds are no problem, it's only when modifications and such are needed do i send the work out, or port work etc. Then i have Pete or someone do this.

The motor Andrew purchased from us is really a smoking deal and frankly i'm surprised more people don't go this route. When he sees the motor, he'll be blown away. It has BRAND new heads & all new cam cover bolts, new water pump, new sensors - new rings - bearings - oil pump, chains - wear strips, tensioner and on and on the list goes. No to mention, it looks brand new.

I don't think anyone can touch our price for the rebuild, but please correct me if i'm wrong.

I even warranty it too!

I wouldn't want to rebuild his motor for one simple fact, TIME FRAME. That's the only issue, we are small operation and rebuilding LT5's isn't something i do normally, more for the heck of it to be honest and just another product to have for sale. So i was to rebuild Andrews motor, look for a 2-3 month time, not to mention, i wouldn't guarantee that i could rebuild it for anywhere near the $4499.99 price, there would always be something to add to the cost somewhere, at least buying what he has, he knows what he's getting and it's ready now.

#'S Matching, well when the ZR-1 becomes a 6 figure $$$$ classic it may start to play out, but right now i don't think 99.9 % of people need to worry about this.

PS, I'll have a full rebuilt 93-95 motor ready shortly too $4999.99 on this one.

Nice and at reasonable prices, terms & conditions.

[VetteMed]

Dual Mass flywheel - has less than an inch of rotation between the halves - see paint dots at 12 o' clock:





Rear of motor, showing rear main seal housing, and path of drain tube from valley

[GOLDCYLON]

Are you sticking with the DM flywheel or ?

[VetteMed]

Originally Posted by GOLDCYLON

Are you sticking with the DM flywheel or ?

That is the plan, if only to maintain the comfort and noise reduction that I'd like to have in a DD. I'm not too worried about the few hp difference that I'd gain from an aluminum FW.

[VetteMed]

Originally Posted by Dynomite

I concur......I modified everything else and was shooting for no vibration issues. Besides, DM is pretty easy to change out anytime later after engine reinstalled.

Also.......Does that rebuilt engine come with DM installed? If not, you loose that fine tuning with original balance. I assume you would loose that fine tuning anyway with a rebuilt bottom end

No FW on the rebuilt motor as far as I know. I am also going to be installing a new harmonic balancer on the rebuilt motor, so I'll be losing that fine-tuning "nickel on the plenum" effect anyway... Not sure how big a deal that really is anyhow.

[GOLDCYLON]

Originally Posted by VetteMed

That is the plan, if only to maintain the comfort and noise reduction that I'd like to have in a DD. I'm not too worried about the few hp difference that I'd gain from an aluminum FW.

I agree. That last pic was great.

[RICKYRJ1]

I have the Findanza FW but hardly any rattle to speak of. I do understand why some choose to stick with the DM for their DD.

[VetteMed]

Originally Posted by Dynomite

I may have this wrong but..........the HP gain from an aluminum flywheel seems to me to be during angular acceleration only which HP would not show up on a Dyno. In other words, you would gain HP on the drag strip accelerating. Not TOP END HP which would show up on a Dyno. Your HP would not be reduced by a constant rotational speed DM. Only by an angular accelerating DM and only because of the larger rotating mass.

Again....I most likely have it all wrong......but am standing by for some more learning

Sounds reasonable to me, but I'm no engineer or physicist.

Originally Posted by Dynomite

Also.......Does that rebuilt engine come with DM installed? If not, you loose that fine tuning with original balance (the pins or Trim Weights in the DM or Harmonic Balancer). I assume you would loose that fine tuning anyway (balanced with DM installed) with a rebuilt bottom end

Looks like you have the roller bearing pilot bushing in that original motor

Keep up the great detailed photos

I think that pilot bushing/bearing is fluted, not a roller. I'll get a close-up of it.

[VetteMed]

Hmm, looks like it IS a roller. Check out how dried out the rollers are!



Transmission jack arrived today -- ZF6 is comfortably strapped in!

[Pete]

That my friend is one of the reasons why i use the solid bronze bearing.

That could've got nasty.

Also check screws on the rear main seal housing sometimes you find them loose.
Pete