new update.

Ferrea ****ed up big.

The keepers we got from Nissan are NOT wrong size. The stock valves taper to a 5.5mm before the head... Ferrea valves are incorrectly machined because they do not have the taper in them.

They are a consistent 6mm thru the entire stem.

I am on hold with Ferrea right now... we either need them to send us new valves or we are gonna machine these ones ourselves.

WTF?!?!

man... one thing after another.

 

ferrea says i should have been told that their valves will not work with stock size retainers... i have SGP retainers which are like stock.

I cannot machine these valves because there is a special coating and heat treating on them.

So now I am **** out of luck. i have to wait for Ferrea to make me custom valves for this.

****in great.

 

to answer your question my machinst has not seen the stock block yet. its still in my engine assembly clean room at my shop.

i do engine assembly in house. There are certain parts of the engine building that we out-source so that the best man for the job is always doing his thing to ensure quality in the engines.

some short blocks I have assembled by my block machinst. some i build here. all long block assembly is done in house every time.

 

where are you ordering your nissan parts from? im having trouble locating main and rod bearings and headgaskets

 

from what i understand this is normal of nissan. i have ordered bearings from performance nissan and from local dealers.

the bearing process takes a while if you have the same luck as me... which is they damage most of the bearings before you get them so you have to order them several times over.

 

That is funny (about the plastic timing chain tensioner) because that is the only part I also broke on the complete tear down of my engine.

 

phunk

The engine torn down is quite beautiful in design.

I looking at the main bearing girdle. Do you think the girdle
could be constructed from either Steel or Billet alluninum for additional strength? Or does the bottom end with factory girdle
seem strong enough for most Big Boost projects.

On the stock block just removed, have you mike'd the cylinders and piston's for "roundness"? Rod bolts mike'd for stretch, etc. ??

Inquiring minds want to know.... As we have more questions than answers.

Cheers Amy -

 

now that i am over it... i am not pissed at ferrea really.

it was just a misunderstanding of their sales guy that I bought the valves from that they required the ferrea retainers and keepers.

on a POSITIVE NOTE - Ferrea sounded VERY anxious to help me and said they would call me back first thing in the morning with a solution.

If that actually happens I will be happy with their customer service and back to satisfied with their products... i was just over reacting.

AmyCroft: The girdle COULD be constructed of something else but I personally wouldnt imagine it needing more than it already has. Lots of very strong engines dont even have 4 bolt mains, let alone any girdle at all.

As for measuring anything... ill ask my machinist to take a look at the cylinder bores... this whole block will be getting inspected to great detail to verify that it had no problem with its previous duty and that it is ready to rock and roll with forged internals in a customers car.

As for rod bolt stretch or anything... i will not be looking for that... the pistons and rods will likely go straight into the dumpster.

 

Good luck man....can't wait to see what happens.

So, what are your plans for turbo replacements, since with all this 600-700whp isn't going to be enough?

 

for now i have no plans. If i do upgrade next year its possible I might just build a one off turbo system for the car.

I am gonna upload some pictures of the built sleeved blocks for you guys in a little while. I got 2 cars to dyno right now, and some cleaning to do then im gonna post some pics and head out for the night.

 

How about a 100+ shot , that'll overcome that turbo limit .

 

 

AEBS sleeves looking good. Why is the crank a bit rusty?

 

that is just the nature of steel.

that was a brand new crank from Nissan... so it hasnt lived its entire life in a oil soaked enviroment like a used crankshaft.

Its perfectly normal for light corrosion there... there is of course ZERO corrosion anywhere on the journals, which is where it matters.

Its nothing to even 1% worry about.

 

also I installed the head studs and head gaskets... I need to get the head alignment dowel pins and of course the heads before putting them on.

For those worried about coolant flow with the sleeves... there are no worries. The holes drilled for coolant flow in the sleeves perfectly line up with the headgaskets... and the headgaskets holes for coolant flow are literally pin holes with the exception of the 2 cylinders that have side by side drillings... but those also mate up with the headgaskets perfectly.

Ill get more pics of that tommarow.

 

cant wait to see the finished z....should be bad azz....

 

Those AEBS sleeves look purdy... great update Charles.. This got to make some serious power...

 

weird question, would happen to know or can you gave an educated guess on how much the crank weighs.

 

sorry if this is noob of me, but what kind of power exactly are u expecting to push with this? 600...700....800?! i mean damn man, after a while, thats just not even controlable, at any speed

 

Big fat slicks will help alot.