DIY Turbo Discussion greddy on a 1.8? homebrew kit?

stock plug wires (NGK) + boost?

Thread Tools
 
Search this Thread
 
Old 04-29-2010, 11:54 PM
  #1  
Elite Member
Thread Starter
iTrader: (13)
 
falcon's Avatar
 
Join Date: Dec 2009
Posts: 2,499
Total Cats: 16
Default stock plug wires (NGK) + boost?

I literally JUST bought new wires right before I decided to go FI.

They are brand new... 7mm NGK blue wires. Will they be good to run 14PSI? 230whp at most.

Or should I buck up... cashola is running thin for the project and I don't want to put these to waste.
falcon is offline  
Old 04-29-2010, 11:55 PM
  #2  
Elite Member
iTrader: (10)
 
Jeff_Ciesielski's Avatar
 
Join Date: Oct 2008
Location: Rhode Island
Posts: 1,770
Total Cats: 31
Default

You'll be fine.
Jeff_Ciesielski is offline  
Old 04-29-2010, 11:59 PM
  #3  
Elite Member
Thread Starter
iTrader: (13)
 
falcon's Avatar
 
Join Date: Dec 2009
Posts: 2,499
Total Cats: 16
Default

Cool.. good to know.
falcon is offline  
Old 04-30-2010, 12:07 AM
  #4  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

judging by the fact that over half the cars here are still on stock ignition I'm going to agree that you'll be fine lol.
18psi is offline  
Old 04-30-2010, 02:41 AM
  #5  
Supporting Vendor
iTrader: (3)
 
ThePass's Avatar
 
Join Date: Jul 2006
Location: San Diego
Posts: 3,303
Total Cats: 1,216
Default

Working well for me so far, though I'm not quite up at the power level you are asking about, but so far so good. My car's recently developed a bit of backfiring at high rpms under boost and I think it may be weak spark related, but my wires are ~40k miles so time for a change. I have no idea how to actually quantify whether a set of wires are causing any hindrance to the setup... As yours are new, I think you're good to go.
__________________
Ryan Passey
ThePass is offline  
Old 04-30-2010, 03:17 AM
  #6  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,099
Default

Close up your gaps, like .025 or smaller. Stock coils suck. I'm surprised half the cars here are still on stock ignition, COPs are both cheap (do it yourself) or stupid easy (buy my kit).
Savington is offline  
Old 04-30-2010, 03:33 AM
  #7  
Supporting Vendor
iTrader: (3)
 
ThePass's Avatar
 
Join Date: Jul 2006
Location: San Diego
Posts: 3,303
Total Cats: 1,216
Default

I'm curious whether there are any specific symptoms that can be attributed to a less than capable ignition system? Or do most of the guys who switch to COPs do so before they reach a point where the ignition system is falling short? I ask so that if I get there, I'll recognize it...
__________________
Ryan Passey
ThePass is offline  
Old 04-30-2010, 03:40 AM
  #8  
Junior Member
iTrader: (10)
 
ssmith's Avatar
 
Join Date: May 2008
Location: Baldwin Park, CA
Posts: 149
Total Cats: 6
Default

I got nasty spark blowout on the dyno (12psi, stock coils .035"), aside from that I didnt notice anything really bad.
ssmith is offline  
Old 04-30-2010, 04:59 AM
  #9  
Former Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,099
Default

Originally Posted by ThePass
I'm curious whether there are any specific symptoms that can be attributed to a less than capable ignition system? Or do most of the guys who switch to COPs do so before they reach a point where the ignition system is falling short? I ask so that if I get there, I'll recognize it...
I had .028 gaps and spark blowout at 13psi. Closed them to .024 and it worked OK. Switched to COPs, opened them to .040 and never had another problem again.
Savington is offline  
Old 04-30-2010, 06:16 AM
  #10  
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 15,176
Total Cats: 1,680
Default

I was having spark blowout at anything above 9psi on my stock coils even with my spark plugs gapped to .024. I have since switched to cops and am hoping I wont have the issues any more.
shuiend is offline  
Old 04-30-2010, 11:58 AM
  #11  
Elite Member
Thread Starter
iTrader: (13)
 
falcon's Avatar
 
Join Date: Dec 2009
Posts: 2,499
Total Cats: 16
Default

Originally Posted by Savington
Close up your gaps, like .025 or smaller. Stock coils suck. I'm surprised half the cars here are still on stock ignition, COPs are both cheap (do it yourself) or stupid easy (buy my kit).
I am going to buy the kit. I'm just short on cash right now. I am basically setting up a full track car for Solo1/hillclimb from scratch. So the budget is thin. COPS are the way to go, I know that. And I will be getting some within the next few months.

Now here's another question related to that. Is it going to be beneficial to get a re-tune when I install the COPS?
falcon is offline  
Old 04-30-2010, 12:18 PM
  #12  
Elite Member
iTrader: (12)
 
JayL's Avatar
 
Join Date: May 2007
Location: Austin, TX
Posts: 1,881
Total Cats: 2
Default

Originally Posted by Savington
...or stupid easy (buy my kit).
When's the setup for the 01 cars being released?
JayL is offline  
Old 04-30-2010, 01:06 PM
  #13  
Elite Member
iTrader: (8)
 
wayne_curr's Avatar
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,712
Total Cats: 4
Default

How noticeable is spark blowout? I'm at 14psi right now and It seems to pull hard to redline in 1st through 3rd. No hiccups that I can notice. Haven't been to redline in 4th yet but I imagine it'll work fine as well.
wayne_curr is offline  
Old 04-30-2010, 01:13 PM
  #14  
Senior Member
iTrader: (2)
 
therieldeal's Avatar
 
Join Date: Oct 2007
Location: Northeastern CT
Posts: 547
Total Cats: 2
Default

has anyone here ever attempted switching to a DSM coil pack? they are cheap and readily available, and DSM guys run them to nearly 500whp. EVO guys with COP's even upgrade to 1st gen coil packs.

i'll be running a DSM coil pack on my escort this season, should be a nice upgrade over my single coil/dizzy
therieldeal is offline  
Old 04-30-2010, 01:14 PM
  #15  
Elite Member
iTrader: (10)
 
Jeff_Ciesielski's Avatar
 
Join Date: Oct 2008
Location: Rhode Island
Posts: 1,770
Total Cats: 31
Default

Originally Posted by therieldeal
has anyone here ever attempted switching to a DSM coil pack? they are cheap and readily available, and DSM guys run them to nearly 500whp. EVO guys with COP's even upgrade to 1st gen coil packs.

i'll be running a DSM coil pack on my escort this season, should be a nice upgrade over my single coil/dizzy
I've thought about it several times. I have a PILE of dsm coil packs at my buddy's house that I've been itching to test.
Jeff_Ciesielski is offline  
Old 04-30-2010, 01:20 PM
  #16  
Elite Member
iTrader: (8)
 
wayne_curr's Avatar
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,712
Total Cats: 4
Default

Originally Posted by Jeff_Ciesielski
I've thought about it several times. I have a PILE of dsm coil packs at my buddy's house that I've been itching to test.
I'll take one
wayne_curr is offline  
Old 04-30-2010, 01:23 PM
  #17  
Senior Member
iTrader: (2)
 
therieldeal's Avatar
 
Join Date: Oct 2007
Location: Northeastern CT
Posts: 547
Total Cats: 2
Default

the stock miata computer may not feed them enough dwell, but for people running standalone it would be a simple swap...
therieldeal is offline  
Old 04-30-2010, 01:38 PM
  #18  
Elite Member
iTrader: (10)
 
Jeff_Ciesielski's Avatar
 
Join Date: Oct 2008
Location: Rhode Island
Posts: 1,770
Total Cats: 31
Default

I put out the word to my friend eric who is currently in posession of the coils. We'll see where this goes.
Jeff_Ciesielski is offline  
Old 04-30-2010, 01:46 PM
  #19  
Senior Member
iTrader: (2)
 
therieldeal's Avatar
 
Join Date: Oct 2007
Location: Northeastern CT
Posts: 547
Total Cats: 2
Default

they are 4g63 coils, right? these are the good ones, the 420A coils are ok but not nearly as epic.
therieldeal is offline  
Old 04-30-2010, 01:48 PM
  #20  
Elite Member
iTrader: (10)
 
Jeff_Ciesielski's Avatar
 
Join Date: Oct 2008
Location: Rhode Island
Posts: 1,770
Total Cats: 31
Default

Originally Posted by therieldeal
they are 4g63 coils, right? these are the good ones, the 420A coils are ok but not nearly as epic.
All we ever dealt with was 1g awd cars, so yes . The 420a makes the baby jesus weep.
Jeff_Ciesielski is offline  


Quick Reply: stock plug wires (NGK) + boost?



All times are GMT -4. The time now is 10:17 AM.