Hustler's new engine: help him pick parts, ya'll ( a thread for power tops) - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 12-11-2012, 10:52 AM   #21
Junior Member
 
Join Date: Nov 2012
Location: Pickens, SC
Posts: 125
Total Cats: -82
Default

I love this forum you never know what you'll see when you hop into a thread!!! Hustler do you have any pics of your car? I would like to see this NA beast.
Jdilla is offline   Reply With Quote
Old 12-11-2012, 11:57 AM   #22
Elite Member
 
Join Date: Jul 2007
Location: Little Rock, AR
Posts: 3,110
Total Cats: 127
Default

I would also go to 10.5-1. I would also go with a more aggressive cam.
jacob300zx is offline   Reply With Quote
Old 12-11-2012, 12:02 PM   #23
Junior Member
 
Join Date: Nov 2012
Location: Pickens, SC
Posts: 125
Total Cats: -82
Default

yea if you get knock bump timing down till she stops.
Jdilla is offline   Reply With Quote
Old 12-11-2012, 12:03 PM   #24
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,899
Total Cats: 1,792
Default

stop.
Braineack is offline   Reply With Quote
Old 12-11-2012, 12:03 PM   #25
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by jacob300zx View Post
I would also go to 10.5-1. I would also go with a more aggressive cam.
Link me to an affordable cam that will enrich my life.
hustler is offline   Reply With Quote
Old 12-11-2012, 12:15 PM   #26
Elite Member
 
Join Date: Jul 2007
Location: Little Rock, AR
Posts: 3,110
Total Cats: 127
Default

What is the power cap for this motor?
jacob300zx is offline   Reply With Quote
Old 12-11-2012, 12:18 PM   #27
Supporting Vendor
iTrader: (10)
 
Reverant's Avatar
 
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,441
Total Cats: 198
Default

Quote:
Originally Posted by Braineack View Post
stop.
Hey knock, hey, stahp?
Reverant is offline   Reply With Quote
Old 12-11-2012, 12:19 PM   #28
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,899
Total Cats: 1,792
Default

something like that.
Braineack is offline   Reply With Quote
Old 12-11-2012, 01:08 PM   #29
Elite Member
 
Join Date: Jul 2007
Location: Little Rock, AR
Posts: 3,110
Total Cats: 127
Default

I just found you a special engine for cheap, please tell me you know what I speak of.

Edit: Problem solved, Trey owes me a nice steak, Newcastle draft, and a reach around.

Last edited by hustler; 12-11-2012 at 01:28 PM.
jacob300zx is offline   Reply With Quote
Old 12-11-2012, 01:29 PM   #30
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

If I can get the money for that fancy engine, I won't have enough money left to buy you a steak, but you can munch on my meat.
hustler is offline   Reply With Quote
Old 12-11-2012, 01:30 PM   #31
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by Jdilla View Post
yea if you get knock bump timing down till she stops.
Injector timing or valve timing?
hustler is offline   Reply With Quote
Old 12-11-2012, 01:50 PM   #32
Elite Member
 
Join Date: Jul 2007
Location: Little Rock, AR
Posts: 3,110
Total Cats: 127
Default

Ninja edit lol
jacob300zx is offline   Reply With Quote
Old 12-11-2012, 01:57 PM   #33
Junior Member
 
Join Date: Nov 2012
Location: Pickens, SC
Posts: 125
Total Cats: -82
Default

ignition timing
Jdilla is offline   Reply With Quote
Old 12-11-2012, 02:07 PM   #34
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by Jdilla View Post
ignition timing
Dwell?
hustler is offline   Reply With Quote
Old 12-11-2012, 02:28 PM   #35
Junior Member
iTrader: (1)
 
Join Date: Aug 2008
Location: Austin, TX
Posts: 239
Total Cats: 4
Default

I've seen a crank that was severely lightened. That and a very small clutch made that engine zing like mad. I believe it ingested a throttle screw though. Crank survived but it is for a 1.6L. I've heard theories go both ways on cutting the counter weights off the crank for an I4. Since you are going with the SuperMiata damper, I'd say go for it.

If you aren't going to need the strength for boost, why do the china rods? Few are much lighter than the factory rods. Unless of course you found a set that is considerably lighter. I'd rather spend the money on headwork magics.

For easy rev'ing how about a 1.6 based flywheel?
mcfandango is offline   Reply With Quote
Old 12-11-2012, 02:32 PM   #36
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,370
Total Cats: 1,332
Default

Quote:
Originally Posted by mcfandango View Post
If you aren't going to need the strength for boost, why do the china rods? Few are much lighter than the factory rods. Unless of course you found a set that is considerably lighter. I'd rather spend the money on headwork magics.

For easy rev'ing how about a 1.6 based flywheel?
Stock rods won't tolerate overrevs to >8000rpm. Carrillo A-beams are what you want for NA builds - still <$1k for a set and lighter than the factory rod (and WAY lighter than any H-beam). It's what we use in our N/A motors.

1.6-based flywheel good. 949Racing 7.25" twindisc best.
Savington is offline   Reply With Quote
Old 12-11-2012, 02:59 PM   #37
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

I have a poverty spec aluminum PP 1.6 clutch.
hustler is offline   Reply With Quote
Old 12-11-2012, 04:50 PM   #38
Senior Member
iTrader: (6)
 
Join Date: Jun 2010
Location: San Rafael, CA
Posts: 1,125
Total Cats: 41
Default

I prefer the 10.5 over the 10:1 pistons but detonation is a tricky bitch on 91 oct. The shitty thing is you just don't know where it will rear it's ugly until it's all together and being tuned. I am always amazed to see so many of the "same motors" have such different detonation personalities.

My original recommendation for a 10:1 piston was due to fuel, Texas summer temps and track conditions.

Rather than try to control detonation by lower compression I would suggest the following. With the below in mind 10:5 or more should be fine.

Add adjustable cam gears. Retarding the intake will bleed off static compression and move the power curve up the rpm band. Take the dyno torque curve and shift it over 250-500 rpms to get an ideal of what i mean.

Dyno/road tune for 91 oct but run race gas blends at the track. 93-95 oct makes a world of difference and is cheap insurance under high heat/lead situations.

I am not sure about the square top differences but my skunk2 has a nice power curve with the rotrex.
k24madness is offline   Reply With Quote
Old 12-11-2012, 04:55 PM   #39
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Thanks for the input on pistons. I tune cars fully heat soaked, like...if the header isn't yellow, I'm not done with the "final test", meaning I like to tune on the fuel I plan to run, with a gallon or two of 87-octane in the winter.

I basically have to advance the MSM cam 4* to make the car drivable.
hustler is offline   Reply With Quote
Old 12-11-2012, 05:10 PM   #40
Senior Member
iTrader: (6)
 
Join Date: Jun 2010
Location: San Rafael, CA
Posts: 1,125
Total Cats: 41
Default

As far as piston material are concerned I think the supertech ones are the best. They are a high silicon forging that expands less that other types of forgings (JE etc). This really helps with oil control. Oil control really helps control detonation.

Stock pistons are also high silicon but cast. The only downside is they are weak and more likely to shatter if subjected to detonation.

Maybe I missed it but did something happen to John's motor?
k24madness is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
elesjuan's mediocre 95 Miata adventure (google fiber edition) elesjuan Build Threads 8 02-16-2016 09:36 PM
TTE Build - Help me pick tires chrisn Race Prep 27 10-16-2015 06:12 PM
Squiblez 1996 Montego blue Squiblez Build Threads 2 09-22-2015 11:17 AM
Project DDoS: '99 "Budget" boost build ProjectDDoS Build Threads 1 09-09-2015 02:52 PM
New here, saying hi, here's what I'm workin with. SuperSneakySecretSquirrel Meet and Greet 5 09-06-2015 09:30 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:04 PM.