Aidan's SCCA Stock Class Autocross Build (Road Course is Too Scary) - Page 298 - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Build Threads Building a motor? Post the progress here.

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 01-14-2016, 05:59 PM   #5941
Moderator
iTrader: (9)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, FL
Posts: 13,401
Total Cats: 1,016
Default

Rebuilt? Did you set the float level?
sixshooter is offline   Reply With Quote
Old 01-14-2016, 05:59 PM   #5942
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

Yes, I will check that again though.

Plan to replace all the ignition bits I listed, then pull the top off and spray out the jets/check float level
aidandj is offline   Reply With Quote
Old 01-14-2016, 06:06 PM   #5943
Elite Member
iTrader: (19)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,185
Total Cats: 323
Default

Also, check that the seat is tight. Make sure the sealing gasket is there, or it can leak back.
rleete is offline   Reply With Quote
Old 01-14-2016, 06:07 PM   #5944
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

What seat?
aidandj is offline   Reply With Quote
Old 01-14-2016, 07:02 PM   #5945
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

POTENZA RE-71R - OnlineTires.com

Re71's for $412+shipping. Tempting.
aidandj is offline   Reply With Quote
Old 01-14-2016, 07:17 PM   #5946
Elite Member
iTrader: (19)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,185
Total Cats: 323
Default

Quote:
Originally Posted by aidandj View Post
What seat?
The one the needle valve goes into. Basically, your problem appears to be that the float bowl empties, and it takes a large open throttle to refill it, and then start sucking fuel. That delay is making it idle like crap and hesitate. You need to figure out why the float bowl is not filling up and staying full.
rleete is offline   Reply With Quote
Old 01-14-2016, 07:18 PM   #5947
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

Can the carb run without the top plate on it? like with an open bowl?
aidandj is offline   Reply With Quote
Old 01-14-2016, 07:20 PM   #5948
Junior Member
 
Join Date: Jun 2008
Location: Senatobia, MS
Posts: 121
Total Cats: 6
Default

Quote:
Originally Posted by aidandj View Post
I'll try and find the video of reving it. I open the throttle, and it sucks in air without reving, then suddenly revs up.
Look down the carb with the engine off and go WOT fast and see if the accelerator pump is working. If you try that while it's running watch your eyebrows
fivehundredton is offline   Reply With Quote
Old 01-14-2016, 07:21 PM   #5949
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

It is working. If i go wide open or pump the throttle it squirts in.
aidandj is offline   Reply With Quote
Old 01-14-2016, 07:24 PM   #5950
Junior Member
 
Join Date: Jun 2008
Location: Senatobia, MS
Posts: 121
Total Cats: 6
Default

Man, it could be so many things... Be careful of fire. If it flares up out of the carb, hit the starter and try to suck it in. Good luck on it.
fivehundredton is offline   Reply With Quote
Old 01-14-2016, 07:24 PM   #5951
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

Ive got an extinguisher sitting by the truck every since i started messing with fuel.
aidandj is offline   Reply With Quote
Old 01-14-2016, 08:14 PM   #5952
Sadfab Union President
iTrader: (2)
 
Join Date: May 2014
Location: Kansas
Posts: 2,687
Total Cats: 113
Default

deezums is offline   Reply With Quote
Old 01-14-2016, 10:36 PM   #5953
SadFab CEO
iTrader: (3)
 
Join Date: Sep 2012
Location: your mom's house phoenix, AZ
Posts: 3,316
Total Cats: 400
Default

I love that video. If im not mistaken, he started a crowd funding campaign for that lol.
hi_im_sean is offline   Reply With Quote
Old 01-14-2016, 10:37 PM   #5954
Destroyer of Inconel
iTrader: (37)
 
EO2K's Avatar
 
Join Date: Apr 2010
Location: In ur driveway, abusin' ur WPA
Posts: 8,747
Total Cats: 748
Default

Quote:
Originally Posted by aidandj View Post
Can the carb run without the top plate on it? like with an open bowl?
Its a 2100 so yes you can. BUT BE REALLY ******* CAREFUL. I don't want to have to re-learn what you look like.

Funny this... I was going to utag rleete and hornetball earlier but I was on my phone. I figured one of you two guys would know how these things work

Lol @ Constant throttle rpm oscillation vid, no one ever accused those fans of not moving enough air
EO2K is offline   Reply With Quote
Old 01-14-2016, 10:51 PM   #5955
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

****** still is being weird.

Sometimes it runs fine, then kinda slows down, starts missing, slowly dies. I tried basically every position for the idle mixture screws.
aidandj is offline   Reply With Quote
Old 01-14-2016, 11:01 PM   #5956
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

aidandj is offline   Reply With Quote
Old 01-14-2016, 11:09 PM   #5957
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

aidandj is offline   Reply With Quote
Old 01-14-2016, 11:40 PM   #5958
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

I'm thinking I might not have cleaned it out well enough.
aidandj is offline   Reply With Quote
Old 01-15-2016, 01:34 AM   #5959
SadFab Sales Lady
Thread Starter
iTrader: (5)
 
aidandj's Avatar
 
Join Date: Apr 2014
Location: Beaverton, USA
Posts: 14,824
Total Cats: 933
Default

Well I'm pissed, probably taking the day off work tomorrow to try and get it running.

In other news I'm going to do a small announcement in my thread, and later were going to do a big announcement with a group buy. Some of you may have noticed the links in mine and seans signatures, but SADFab is official. Website and everything.

www.SADFab.com

The website is very basic right now, as its just a copy of my personal site, slightly edited. But its a place to show off our "products" which is really just us doing group buys for our open source projects.

Thats right, everything we do/design is going to be open source, and we will supply all dimensions, CAD drawings, schematics, wiring etc. Basically if you have the tools, you can reproduce everything we do.

See here: www.SADFab.com/opensource.html

Our goal isn't to make a profit, but to share information, and cheap products with the community. When we do group buys we will calculate in a labor cost, and a small administrative cost to cover websites, stickers, etc.

Our first product, and the one that really started this idea is delrin bushings. More information will come in the official announcement but expect an entire delrin bushing conversion at a price that beats everything else available.
aidandj is offline   Reply With Quote
Old 01-15-2016, 01:48 AM   #5960
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 7,957
Total Cats: 127
Default

Give it a bump of carb spray when it's idling like ****. If it comes alive, fuel issue not ignition. Sounds like lean spitting starving for fuel to me. Might be sucking the bowls dry/bad pump. Is it mechanical pump or electric? If it revs/runs under power it's probably not the pump. A weak mechanical pump might not work at low revs, seen that before on a 302 long time ago.

Also if you have a vacuum gauge, what's it show? A vacuum leak is most likely problem if it's not a pump and you've already rebuilt the carb.
patsmx5 is online now   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Autocross Class Unknown - An exercise in not caring ChasB Race Prep 31 10-26-2016 09:22 PM
Autocross/time attack build up drivehardaz General Miata Chat 11 07-21-2006 02:39 PM
Red Beast might be for sale... rmcelwee Cars for sale/trade 5 07-17-2006 04:38 AM
(not my Miata) Water in my CAI. And I/C piping. And I/C. And, finally, engine. UofACATS Insert BS here 4 07-11-2006 11:37 PM


Tags
aidan and sean's thread, brake fade? used pads., camera thread, can't catch meeeeee, dirt is my friend, hairline thread, landlord fuckery, linus strikes again, remarkable power!!!!!!!, sadfab rocks your butt, tires suck buy frozen rs3

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 On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 10:02 PM.