Jump to content
SAU Community

Recommended Posts

The ports got a bit of a clean up, removing steps in the radius etc, and that was about it. I didn't remove the 'humps' in the exhaust ports, just my choice :D .

post-12712-0-48726300-1331079541_thumb.jpgpost-12712-0-30974300-1331079544_thumb.jpg

Just to prove I ain't ripping off web pics, my ugly mug lol. Putting grubscrews into crank, loctited in to be sure.

post-12712-0-14832400-1331079546_thumb.jpgpost-12712-0-38020400-1331079548_thumb.jpg

Crank getting fitted and measured up for bearing clearances 0.0015"-0.002" from memory, thrust 0.011". Girdle torqued up, and you can just see the 3 long studs that have been shortened to clear sump and driveshaft tube. 55FT-LB.

post-12712-0-60155000-1331079550_thumb.jpgpost-12712-0-00810800-1331079553_thumb.jpg

Pistons and rods getting some attention. Piston rings clocked as per service manual.

post-12712-0-46781400-1331079555_thumb.jpgpost-12712-0-06087900-1331079558_thumb.jpg

Fitting the piston and rod into the bore. Rod bolts, I tightened them using a bolt stretch gauge on the 3rd cycle. 0.0055" stretch.

post-12712-0-58449600-1331079560_thumb.jpg

Today piston to deck height will be measured and if all good it'll all be put together permanently.

Hey Sean,

Looking good , let me know what the deack height is and what head gasket you using ( i have a nismo 0.9mm gasket if interested). Why i ask is john has Set my motor to have 33thou squish, try and aim for that if you can.

Hi Bob,

Block had about 0.006" taken off the deck, I was told.

Deck height of pistons' quench measured up 0.016-0.017'' proud of the deck, 0.003-0.004" on the other side squish.

He is using a cosworth 1.1mm (0.0455") head gasket.

So squish will be 0.0285". So over 0.5mm, it should be enough clearance when engine is running in the higher RPM ranges.

I aim to have the cylinder head on and torqued up tomorrow.

Hi Bob,

Block had about 0.006" taken off the deck, I was told.

Deck height of pistons' quench measured up 0.016-0.017'' proud of the deck, 0.003-0.004" on the other side squish.

He is using a cosworth 1.1mm (0.0455") head gasket.

So squish will be 0.0285". So over 0.5mm, it should be enough clearance when engine is running in the higher RPM ranges.

I aim to have the cylinder head on and torqued up tomorrow.

Hey Sean,

That is a tight squish i think its way to tight lower limit is 33 thou any lower then this may be a problem. I would do a dummy build to check this measurement to make sure.

And can you confirm the piston flat surface ( Piston squish area ) extends out of the block at 0.016 - 0.017" ?

Just a note on tight squish, the car will have problems idling and if it does idle it will be rough

These were measurements I took yesterday with the pistons at TDC, bottom end dummy assembled.

0.0045" under your 33 thou. He'll love the idle more then haha, barp barrrp barp....along with the cams.

I'll dummy fit head and double check gap with clay.

So I fitted head and measured the clay after lunch. Squish measured up at 0.038" with the head torqued down.

After dummy fitting the cylinder head, it was removed, head gasket was hylomared, then head was fitted and torqued in steps to 110 FTLBs.

Then cam caps were fitted and torqued to 10FTLBs. Timing accessories were then fitted and a dial gauge used to check piston Top Dead Center etc.

Cam gears set to 0, 0 degrees, as HKS cams are being used, and they can be fiddled with on the dyno at a later stage.

post-12712-0-99574400-1331219660_thumb.jpgpost-12712-0-54030900-1331219663_thumb.jpgpost-12712-0-57392000-1331219665_thumb.jpg

Block painted in heatproof matt black to see leaks easily ;)

post-12712-0-19418800-1331219668_thumb.jpgpost-12712-0-51088400-1331219670_thumb.jpgpost-12712-0-00993600-1331219673_thumb.jpg

Timing done! Nice colour.

post-12712-0-58844600-1331219675_thumb.jpgpost-12712-0-71269600-1331219677_thumb.jpgpost-12712-0-99183400-1331219679_thumb.jpg

Harmonic balancer still needs to be torqued up. Might make up a tool to hold the balancer at the front as I'm torquing up the crank bolt, instead of twisting the crank if I held it at the back of the crank....

bore: 86.5mm

stroke: 73.7mm

head gasket thickness: 1.1mm

deck height: around -0.013in (one side of piston was .003", the other side was .016")

piston dome: -16.2cc

combustion chamber: 64.5cc

Hey Paul,

I calculated static CR at around 9.2:1, keeping in mind this engine is using non standard cams, so upping the comp a bit will help with off boost drivability and regain a little efficiency back at low to mid RPM due to the longer duration cams (264deg 8.8mm lift).

great now i'm going to have to put the 4.11 back just to keep up again........

but seriously looks good, keen to hear and see it go......hard! will have to go cruising when i get back buddy.

Bloody Oath... but mind you you have the torque :closedeyes:

Feels like ages without my car lol

Blah blah.......back on topic!! put the engine in today and fitted up the gearbox. Sucks doing it all by yourself..

This was after spending the morning sorting out all the minor crap before the engine could go in...

Pics will be up tomorrow.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Update 3: Hi all It's been a while. Quite a lot of things happened in the meantime, among other things the car is (almost) back together and ready to be started again. Things that I fixed or changed: Full turbo removal, fitting back the OEM turbo oil hardlines. Had to do quite a bit of research and parts shopping to get every last piece that I need and make it work with the GT2860 turbos, but it does work and is not hard to do. Proves that the previous owner(s) just did not want to. While I was there I set the preload for the wastegates to 0,9bar to hopefully make it easier for the tuner to hit the 370hp I need for the legal inspections that will follow later on. Boost can always go up if necessary. Fitted a AN10 line from the catch can to the intake hose to make the catchcan and hopefully the cam covers a slight vacuum to have less restrictive oil returns from the head and not have mud build up as harshly in the lines and catch can. Removed the entire front interior just shy of the dashboard itself to clean up some of the absolutely horrendous wiring, (hopefully) fix the bumpy tacho and put in LED bulbs while I was there. Also put in bulbs where there was none before, like the airbag one. I also used that chance to remove the LED rpm gauge on the steering column, which was also wired in absolute horror show fashion. Moved the 4in1 Prosport gauge from sitting in front of the OEM oil pressure gauge to the center console vents, I used a 3D printed vent piece to hold that gauge there. The HKB steering wheel boss was likely on incorrectly as I sometimes noticed the indicator reset being uneven for left vs. right. In the meantime also installed an airbag delete resistor, as one should. Installed Cube Speed premium short shifter. Feels pretty nice, hope it'll work great too when I actually get to drive. Also put on a fancy Dragon Ball shift knob, cause why not. My buddy was kind enough to weld the rust hole in the back, it was basically rusted through in the lowermost corner of the passenger side trunk area where the wheel arch, trunk panel and rear quarter all meet. Obviously there is still a lot of crustiness in various areas but as long as it's not rusted out I'll just treat and isolate the corrosion and pretend it's not there. Also had to put down a new ground wire for the rear subframe as the original one was BARELY there. Probably a bit controversial depending on who you ask about this... but I ended up just covering the crack in the side of the engine block, the one above the oil feed, with JB Weld. I used a generous amount and roughed up the whole area with a Dremel before, so I hope this will hold the coolant where it should be for the foreseeable future. Did a cam cover gasket job as the half moons were a bit leaky, and there too one could see the people who worked on this car before me were absolute tools. The same half moons were probably used like 3 times without even cleaning the old RTV off. Dremeled out the inside of the flange where the turbine housing mates onto the exhaust manifolds so the diameter matches, as the OEM exhaust manifolds are even narrower than the turbine housings as we all know. Even if this doesn't do much, I had them out anyways, so can't harm. Ideally one would port-match both the turbo and the manifold to the gasket size but I really didn't feel up to disassembling the turbine housings. Wrapped turbo outlet dumps in heat wrap band. Will do the frontpipe again as well as now the oil leak which promted me to tear apart half the engine in the first place is hopefully fixed. Fitted an ATI super damper to get rid of the worn old harmonic balancer. Surely one of the easiest and most worth to do mods. But torquing that ARP bolt to spec was a bitch without being able to lock the flywheel. Did some minor adjustments in the ECU tables to change some things I didn't like, like the launch control that was ALWAYS active. Treated rusty spots and surface corrosion on places I could get to and on many spots under the car, not pretty or ideal but good enough for now. Removed the N1 rear spats and the carbon surrounding for the tailpipe to put them back on with new adhesive as the old one was lifting in many spots, not pretty. Took out the passenger rear lamp housing... what do you know. Amateur work screwed me again here as they were glued in hard and removing it took a lot of force, so I broke one of the housing bolts off. And when removing the adhesive from the chassis the paint came right off too. Thankfully all the damaged area won't be visible later, but whoever did the very limited bodywork on this car needs to have their limbs chopped off piece by piece.   Quite a list if I do say so myself, but a lot of time was spent just discovering new shit that is wrong with the car and finding a solution or parts to fix it. My last problem that I now have the headache of dealing with is that the exhaust studs on the turbo outlets are M10x1.25 threaded, but the previous owner already put on regular M10 nuts so the threads are... weird. I only found this out the hard way. So now I will just try if I can in any way fit the front pipe regardless, if not I'll have to redo the studs with the turbos installed. Lesson learned for the future: Redo ALL studs you put your hands on, especially if they are old and the previous owners were inept maniacs. Thanks for reading if you did, will update when the engine runs again. Hope nothing breaks or leaks and I can do a test drive.
    • No those pads are DBA too  but they have colors too. I look at the and imo the green "street" are the best.
    • I’m not sure what happened I told them about sonic tunes free OTS tune and the next the I know .. I was booted..   To funny 
    • Yea - I mean I've seen my fuel pump which is decades old and uh, while I'm not saying this with real knowledge... but I sure get the ick at using anything in the fuel system that produced the state of that pump. Many years ago I went through multiple pumps (and strainers) before I dropped the tank to clean it out with extreme violence. I'm talking the car would do maybe 50km before coming to a halt, which resulted in me cleaning out the filter with some brake cleaner and going on my way. None of my stuff ever looked like what came out of your fuel tank. I don't think I'd be happy with it unless every single component was replaced (or at least checked/cleaned/confirmed to be clean here).
×
×
  • Create New...