Go Back  RX7Club.com - Mazda RX7 Forum > Tech and Performance > Engine Management Forum > Microtech
Reload this Page >

Microtech 12a bp turbo - new engine - base map help

Microtech Area is for discussing Microtech systems

Microtech 12a bp turbo - new engine - base map help

Old 09-30-09, 02:44 PM
  #1  
Full Member
5 Year Member
Thread Starter
iTrader: (1)
 
Join Date: Feb 2009
Location: UK
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Cool 12a bp turbo - new engine - base map help

Hi Guys,

Ive got a fresh 12a bridge port turbo with a microtech lt10s. Injectors are S5 turbo 550cc for primary and RCI 1200cc for secondaries. Timing has been set using first notch on the pulley which is 5ATDC.

The only way i got it to start was the bump start it and then if stalled i cant get it to start off the key and the base map is set up for a 13bt turbo and i cant get it to idle. once the water correction map come into play it increased the idle considerable to around 2300rpm which isnt where id like for it to be on a brand new engine.

Can anyone suggest some parameters for my idle map and so forth to get me going and drivable?

Cheers Guys

Last edited by bo0557; 09-30-09 at 02:47 PM.
bo0557 is offline  
Old 09-30-09, 04:18 PM
  #2  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
Your problem isnt the tune.

YOUR PROBLEM IS THE ENGINE.
It hasnt got enough compression to start.

You need to get it running. Let it idle high. Take it for a long drive and hope it runs in enough to start.

Engines with 1 piece seals dont generally start very well, let alone when they are new.
rx72c is offline  
Old 09-30-09, 04:59 PM
  #3  
Full Member
5 Year Member
Thread Starter
iTrader: (1)
 
Join Date: Feb 2009
Location: UK
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by rx72c View Post
Your problem isnt the tune.

YOUR PROBLEM IS THE ENGINE.
It hasnt got enough compression to start.

You need to get it running. Let it idle high. Take it for a long drive and hope it runs in enough to start.

Engines with 1 piece seals dont generally start very well, let alone when they are new.
Omar the engine cranks over fine and tries to start - look at my ecu there is nothing in the idle map screen and i dont want to go through a lengthy process of adding it and trying it and killing a battery or 2 in the process.
bo0557 is offline  
Old 09-30-09, 06:46 PM
  #4  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
Well if you can right down all the values for your idle and load map. Ill go through them and put something together for you.

But what your experiencing is lack of compression. an engine with good compression will always start. 12a fuel requirements are only marginally different to 13b.

Also your idle sitting at 2380rpm when hot and lower when cold is normal. You have to set your idle speed once its warm.
Have you calibrated your tps so its actually referencing off your idle map?
rx72c is offline  
Old 10-04-09, 03:43 PM
  #5  
Full Member
5 Year Member
Thread Starter
iTrader: (1)
 
Join Date: Feb 2009
Location: UK
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Ill try and get the data from it for you to see for yourself..

My 2 vista laptops and work xp laptop arent working.. They connect then say no connection - have just ordered a new serial to usb adapter and will try later in the week.
bo0557 is offline  
Old 10-06-09, 03:44 PM
  #6  
Full Member
5 Year Member
Thread Starter
iTrader: (1)
 
Join Date: Feb 2009
Location: UK
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Hey Guys,

I took some screen shots of the ecu and all of the screen shots if anyone with microtech knowledge can looking through and see whats going on..

http://s1017.photobucket.com/albums/...557/Microtech/

Cheers

Damon
bo0557 is offline  
Old 10-06-09, 04:54 PM
  #7  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
The map im giving you is only going to help if your engine has compression. If you put this in and it makes no difference. then your engine is simply low on compression.

Idle Map
Screen 1

30" ~ 1.62
25" ~ 1.44
20" ~ 1.43
15" ~ 1.76
10" ~ 2.35
05" ~ 3.05
00" ~ 3.76

Pump Map
Screen 19

Pump2Start ~ 2000
Pump1Amt ~ 30
Pump1Pulse ~ 08
Pump1Trig ~ 12
Pump1Stop ~ 00
Pump1Adv ~ 10

Pump2Time ~ 10
Pump2Amt ~ 30
Pump2Trig ~ 16
Pump2Stop ~ 00
Pump2Adv ~ 10

PumpCold ~ 15

Water Map
Screen 20

-25 ~ 73
-17 ~ 77
-9 ~ 75
-1 ~ 71
5 ~ 63
11 ~ 52
18 ~ 44
24 ~ 38
31 ~ 29
38 ~ 21
46 ~ 13
60 ~ 7
68 ~ 3
82 ~ 0
99 ~ 0
124 ~ 0

t*rpm
Screen 23

Idle ~ 25
1000 ~ 15
1500 ~ 20
2000 ~ 20
2500 ~ 25
3000 ~ 25
3500 ~ 25
4000 ~ 25
4500 ~ 25
5000 ~ 25
5500 ~ 25
6000 ~ 25
6500 ~ 25
7000 ~ 25
7500 ~ 25
8000 ~ 25
9000 ~ 25

I have given you what i think you should change in your map.

But just from looking at your map. It isnt your start up problem. But put it in. It wont make it worse.
rx72c is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Kyo
2nd Generation Specific (1986-1992)
6
04-13-19 09:24 AM
stickmantijuana
Engine Management Forum
11
11-09-15 01:15 PM
stickmantijuana
Microtech
5
08-23-15 11:04 AM
befarrer
Microtech
3
08-22-15 05:52 PM
stickmantijuana
20B Forum
10
08-19-15 01:47 PM


Thread Tools
Search this Thread
Quick Reply: Microtech 12a bp turbo - new engine - base map help


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: