Build Threads Building a motor? Post the progress here.

Fireindc's attempt to build a decent miata. (the search for more torque).

Thread Tools
 
Search this Thread
 
Old 10-19-2014, 09:26 PM
  #721  
Elite Member
iTrader: (4)
 
hornetball's Avatar
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,301
Total Cats: 696
Default

Yes. But the real point was the mismatches in wrist pin weights. By the time he swapped around wrist pins (lightest wrist pin with heaviest piston, etc.), there was only a small amount of mismatch to address with grinding.
hornetball is offline  
Old 10-19-2014, 09:48 PM
  #722  
Elite Member
Thread Starter
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default

Ah, i saw that. however, i'm keeping the wrist pins with the pistons that they came off, or at least that seems like a good idea to me.
Fireindc is offline  
Old 10-20-2014, 06:55 AM
  #723  
Elite Member
iTrader: (4)
 
hornetball's Avatar
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,301
Total Cats: 696
Default

Oh! Ok. Thought you had new. If not, definitely keep them together.
hornetball is offline  
Old 10-20-2014, 12:22 PM
  #724  
Elite Member
Thread Starter
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default

Originally Posted by hornetball
Oh! Ok. Thought you had new. If not, definitely keep them together.
Yeah, new "ebay" forged rods, OEM pistons/wristpins.

Going back to the shop, gotta shave a few more grams and get everything as balanced as I can. Then time for a quick hone, and onto assembly!

Also, my newest plan is probably not one you guys would approve of . Going to lap and re-seat the valves on my 95 head, clean the HLAs, re-assemble with new stem seals, then run the 95 head for temporary. This will give me time to properly rebuild my 99 head, in my garage, at my leisure, while I have a running/driving car. This also means if my ghetto-build block decides to grenade, It wont take out my 99 head.

Basically I'll be putting the 95 motor together, with the 95 head, swapping the entire assembly into the car right away. This should only bring the miata down for a weekend or so, which is a huge plus.
Fireindc is offline  
Old 10-21-2014, 11:43 AM
  #725  
Elite Member
iTrader: (4)
 
Efini~FC3S's Avatar
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,309
Total Cats: 98
Default

Sounds like a perfectly reasonable plan to me...but I've been criticized for not having the most sound plans ever
Efini~FC3S is offline  
Old 10-21-2014, 12:02 PM
  #726  
Elite Member
 
Jeffbucc's Avatar
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,764
Total Cats: 951
Default

I approve mostly due to the fact that you'll have a properly built 99 head in the spring. Since you obviously are in no rush, enjoy it and do it right.
Jeffbucc is offline  
Old 10-21-2014, 12:13 PM
  #727  
Elite Member
Thread Starter
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default

Originally Posted by Jeffbucc
I approve mostly due to the fact that you'll have a properly built 99 head in the spring. Since you obviously are in no rush, enjoy it and do it right.
LOL, you severely over-estimate my time scale for this. However, yes, the 99 head will get the works. Porting, probably bigger valves, maybe cams?, awesome honda manifold, etc. Then, assuming my ghetto built BP is still chugging along happily, this head will be tossed on there, and ALLOFIT run with e85. OR, i might do some kind of n/a build with the 99 head and high compression bottom end, eventually.

To be perfectly honest, even the 2554 is more power than anyone needs on the street around here in a miata. The 2871 is going to be craziness.. and I just want a reliable car that i can go cross country in if desired.

This is why simplicity and reliability are taking front over power. Also, i don't need any tickets at this point in my life.
Fireindc is offline  
Old 10-21-2014, 12:17 PM
  #728  
Retired Mech Design Engr
iTrader: (3)
 
DNMakinson's Avatar
 
Join Date: Jan 2013
Location: Seneca, SC
Posts: 5,009
Total Cats: 856
Default

Originally Posted by Fireindc

To be perfectly honest, even the 2554 is more power than anyone needs on the street around here in a miata. Also, i don't need any tickets at this point in my life.
Yeah, I'm running waste gate still on my micro TD04, and have started debating not puting the EBC on. Still, it seems to me that I should get all the air / fuel the system can produce, for the experience. I can always right foot modulate. Maybe the power creep just hasn't gotten to me yet?
DNMakinson is offline  
Old 10-21-2014, 12:17 PM
  #729  
Elite Member
 
Jeffbucc's Avatar
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,764
Total Cats: 951
Default

That is why I'm sticking to autocross and track days and the occasional jaunt in the Miata. I don't break the speed limit, I just accelerate as fast as possible UP to the speed limit.

Plus, after driving the Miata fast, I drive like an old man in my Jetta.

Agreed on too much power, I'm highly contemplating downgrading to the smallest GTX turbo in the future. Too much power for autocross, at least on the rubber I'm utilizing.
Jeffbucc is offline  
Old 10-21-2014, 12:26 PM
  #730  
Elite Member
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: Very NorCal
Posts: 10,441
Total Cats: 1,899
Default

I'm looking forward to having these problems in the near future
EO2K is offline  
Old 10-21-2014, 12:27 PM
  #731  
Elite Member
Thread Starter
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default

Props all around. If there were more highways, and if i was into straight line racing, i'd absolutely want as much power as possible. I've gotten older and I just want to enjoy this car without touching it for a while, so my priorities have changed I guess.

On the plus side, I've gotten some motivation back for the car and I really hope to have this engine back together very soon
Fireindc is offline  
Old 10-21-2014, 12:31 PM
  #732  
Elite Member
 
Jeffbucc's Avatar
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,764
Total Cats: 951
Default

Originally Posted by Fireindc
Props all around. If there were more highways, and if i was into straight line racing, i'd absolutely want as much power as possible. I've gotten older and I just want to enjoy this car without touching it for a while, so my priorities have changed I guess.

On the plus side, I've gotten some motivation back for the car and I really hope to have this engine back together very soon
And all it took was a not very clever message on your gauge panel telling prospective future owners you sucked off a bunch of fireman...glad I could give you that push
Jeffbucc is offline  
Old 10-21-2014, 01:05 PM
  #733  
Elite Member
Thread Starter
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default

Originally Posted by Jeffbucc
...glad I could give you that push
Thanks boo. I love it when you push.
Fireindc is offline  
Old 10-21-2014, 01:08 PM
  #734  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

lol I'm here for the gangbang
18psi is offline  
Old 10-21-2014, 01:10 PM
  #735  
Elite Member
 
Jeffbucc's Avatar
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,764
Total Cats: 951
Default

Vlad you gotta stop instigating these things man, my thread, now Fires...**** it
Jeffbucc is offline  
Old 10-21-2014, 01:46 PM
  #736  
Supporting Vendor
iTrader: (1)
 
turbofan's Avatar
 
Join Date: Sep 2010
Location: Lake Forest, CA
Posts: 7,951
Total Cats: 1,004
Default

late to the party but here for the tip
__________________
Ed@949Racing/Supermiata
www.949racing.com
www.supermiata.com
turbofan is offline  
Old 10-21-2014, 03:04 PM
  #737  
Elite Member
iTrader: (4)
 
psyber_0ptix's Avatar
 
Join Date: Mar 2012
Location: Northern VA
Posts: 4,648
Total Cats: 544
Default

Let me know if you want a spare BP4W valve cover to play with. Wrinkle red or stock
psyber_0ptix is offline  
Old 02-20-2015, 02:59 PM
  #738  
Senior Member
iTrader: (5)
 
90civichhb's Avatar
 
Join Date: Oct 2014
Posts: 542
Total Cats: 36
Default

Any updates with the car? Good read overall, awesome job with the Subaru as well. I DD a 2000 RS and had some issues with it after a timing belt install. Turned out to be a faulty new hydraulic tensioner. Glad yours was just a routing issue with the PVC.
90civichhb is offline  
Old 03-11-2015, 11:34 AM
  #739  
Elite Member
Thread Starter
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default

Originally Posted by 90civichhb
Any updates with the car? Good read overall, awesome job with the Subaru as well. I DD a 2000 RS and had some issues with it after a timing belt install. Turned out to be a faulty new hydraulic tensioner. Glad yours was just a routing issue with the PVC.
Thanks for the props, still loving the subaru. It's been thousands of miles now (10k +), and it barely uses oil, and i've never had to add coolant. Oil use on her is maybe a qt per 3,000 or so, so pretty much normal subaru 2.5 usage. Great car.

The miata.. oh how i lust for my miata. It's heavy on the brain now, and in its current state does run, i just don't want to drive it due to oil pressure issues. SO, the engine build will be commencing. I have a new schedule at work where i get off at 2, and now with spring forward I've got plenty of time each day after work.

SO GUYS, i've been out of the loop for a bit and i want to ask a few questions.

#1 (most important), what guide/manual should i be using for assembling my engine?

#2 what plasti-gauge should I buy/use for bearing tolerances? A link would make it easy and i would love you.

#3 WHERE can i take off material from my pistons to balance them ? I'd like to lighten the heaviest piston by a few grams to bring it back in line with the others, and keep my rotating assy somewhat balanced.

I've just ordered a piton ring filer, and a piston ring compressor to install the pistons.. so I should be set there. Wanting to get this bottom end assembled asap so i can play with the head.


NEW GOAL FOR THE CAR: not making crazy power, but making it a reliable dependable car that me and the misses can take on leisurely drives to colorado and whatnot on a whim. ONE DAY i'd like to be able to drive to mazdas at laguna seca. I'm tired of ******* wrenching and I just want to have fun
Fireindc is offline  
Old 03-12-2015, 09:50 AM
  #740  
Elite Member
iTrader: (8)
 
matthewdesigns's Avatar
 
Join Date: Jun 2008
Location: WNC
Posts: 1,648
Total Cats: 55
Default

Glad to see you get back to priorities
matthewdesigns is offline  


Quick Reply: Fireindc's attempt to build a decent miata. (the search for more torque).



All times are GMT -4. The time now is 05:01 AM.