3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

1300cc secondary blew my engine

Thread Tools
 
Search this Thread
 
Old 03-19-04, 05:24 PM
  #26  
block-spike

 
rdavidsrx7's Avatar
 
Join Date: Feb 2004
Location: West Chester, PA
Posts: 548
Likes: 0
Received 0 Likes on 0 Posts
man, KD has so many sets of stock turbos layin around you would think they could get 2 compressor wheels together out of all of them, but hey atleast they are bein cool with the rebuild.
Old 03-19-04, 05:35 PM
  #27  
Eats, Sleeps, Dreams Rotary

 
7racer's Avatar
 
Join Date: Apr 2001
Location: Dallas, Texas
Posts: 3,736
Likes: 0
Received 9 Likes on 9 Posts
Originally posted by RedX7
Have them flow tested for flow and pattern.

UPDATE: Just found out from Skip that both turbos are shot. He's going to take care of the engine, but I have to pay for the turbos. I'm not sure if they are rebuildable yet, or if I'll have to get new ones. Wish me luck.
Crap! I have some RC 1300 installed on my new motor with ceramic seals!!

BTW, all of RC's injectors do comeback with a sheet that has the flow test on them. I think RC does this on all of their injectors...KD should have a record of this since they out sourced the porting no?

Can you confirm that RCengineering did this?

It still freaks me out on why specifically 1300 fail and not say 1200's? Is it purely the larger size?

Last edited by 7racer; 03-19-04 at 05:38 PM.
Old 03-19-04, 05:39 PM
  #28  
I swear my car hates me!

Thread Starter
 
RedX7's Avatar
 
Join Date: Jun 2002
Location: San Diego, CA
Posts: 629
Likes: 0
Received 0 Likes on 0 Posts
Yeah, I have the flow test sheet at home with all my other "car stuff papers". They tested fine in all aspects, but the little bastard still killed my engine.
Old 03-19-04, 06:22 PM
  #29  
Lives on the Forum

 
rxrotary2_7's Avatar
 
Join Date: May 2001
Location: southern NJ
Posts: 5,097
Received 1 Like on 1 Post
thats interesting that you have the "anit-detionation" device yet it popped adn nobody who replied even thought twice about it.
Old 03-19-04, 07:38 PM
  #30  
rotary sensei

iTrader: (5)
 
Mr rx-7 tt's Avatar
 
Join Date: Mar 2001
Location: Virginia
Posts: 2,312
Likes: 0
Received 0 Likes on 0 Posts
It may have been something else, not the injectors.
Old 03-25-04, 03:02 PM
  #31  
No it's not Turbo'd

 
DCrosby's Avatar
 
Join Date: Jun 2002
Location: Los Angeles, Ca
Posts: 2,511
Likes: 0
Received 2 Likes on 2 Posts
Call me crazy, but wouldn't a knock sensor have detected the onset of a lean condition as the 1300 didn't come online, and retarded fuel and ignition, to prevent detonation ??

J&S or AEM mind you, not the stock system
Old 03-25-04, 09:40 PM
  #32  
Senior Member

 
J.S.J's Avatar
 
Join Date: Nov 2003
Location: Irvine, California
Posts: 599
Likes: 0
Received 0 Likes on 0 Posts
How hard would it be to add another port to each runner and use top feed injectors. I am sure the drivers in the computer could handle the extra load. With two sets of stockers 850 & 850 or 550 & 850 etc. That would solve the reliability and the use of hacked up over priced injectors. I just think the factory injectors, cleaned preform best, there designed to flow at a set rate for ever. End of rant.
Old 03-25-04, 09:44 PM
  #33  
Rotary Freak

iTrader: (2)
 
iceman4357's Avatar
 
Join Date: Jan 2004
Location: St.Louis
Posts: 1,881
Received 129 Likes on 73 Posts
my friend was telling me about this and he said not to get the 1300 because they are 850 that are just drilled out to 1300.
Old 03-25-04, 10:47 PM
  #34  
I swear my car hates me!

Thread Starter
 
RedX7's Avatar
 
Join Date: Jun 2002
Location: San Diego, CA
Posts: 629
Likes: 0
Received 0 Likes on 0 Posts
Yeah, apparently the 1200's aren't doing so hot either. Skip said that they've been testing them and they keep flooding out. Freaking injectors! Hopefully, all the bugs will be worked out by next week.
Old 03-30-04, 06:29 PM
  #35  
Photo Diety

 
rx7tt95's Avatar
 
Join Date: Mar 2001
Location: Florida
Posts: 2,311
Likes: 0
Received 0 Likes on 0 Posts
Anything from RC Engineering on this? Anyone call them to get their perspective? As I said earlier, I'm on my third year of daily driving and my 1300's are fine. I have one of the first sets they made. I know when our injectors go static, they stay open, not closed. Might be different from complete failure however.

This seems to be two motors through KD, both using the anti-det device that have blown due to injector failure. What are the odds?
Old 03-30-04, 06:36 PM
  #36  
fart on a friends head!!!

 
rotorbrain's Avatar
 
Join Date: Mar 2002
Location: sheppard AFB, TX
Posts: 4,104
Likes: 0
Received 1 Like on 1 Post
Originally posted by rx7tt95
This seems to be two motors through KD, both using the anti-det device that have blown due to injector failure. What are the odds?
hopefully, not misinformation. . . ::zing::

paul
Old 03-30-04, 09:04 PM
  #37  
Rotary Freak

 
pluto's Avatar
 
Join Date: Feb 2001
Location: fort worth, tx, usa
Posts: 1,926
Likes: 0
Received 0 Likes on 0 Posts
I found it hard to believe that a completely shut injector will cause an engine to blow. Actually, based on my experience, having a stuck injector will not even allow you to get the boost up. The car will fall on its face as soon as the 2nd injector comes in and run the same duty cycle as the primary. It's almost like a fuel cut in a way that it would just cut off the engine completely. The only way that an engine could possibly blow is if the spray pattern was wacked or the injector was partially open where it is still spraying enough fuel to keep the engine going, but not enough to cool the internals down (pre-detonation). Which if the car has an anti-detonation device, I would assume that it'll prevent it since it is catagorized as detonation?

just my .02


Originally posted by rxrotary2_7
thats interesting that you have the "anit-detionation" device yet it popped adn nobody who replied even thought twice about it.
Old 03-30-04, 09:08 PM
  #38  
built my own engine

 
93BlackFD's Avatar
 
Join Date: Dec 2002
Location: Buckhead, Atlanta
Posts: 3,470
Likes: 0
Received 2 Likes on 2 Posts
it's a tarp
Old 03-31-04, 01:34 AM
  #39  
Pimpin Rotors...and Hoes

 
badass7's Avatar
 
Join Date: Feb 2001
Location: New Orleans, LA
Posts: 1,401
Likes: 0
Received 0 Likes on 0 Posts
I am running two Brand New OEM 850's bored out to 1300cc's. I think the problem comes in when using 11 year old injectors that have been sent off to RC to get bored out and cleaned.
Old 03-31-04, 02:27 AM
  #40  
Rotary Powered Boobies

iTrader: (1)
 
luiml73's Avatar
 
Join Date: Oct 2001
Location: Miami Beach
Posts: 2,530
Likes: 0
Received 0 Likes on 0 Posts
I found it hard to believe that a completely shut injector will cause an engine to blow. Actually, based on my experience, having a stuck injector will not even allow you to get the boost up. The car will fall on its face as soon as the 2nd injector comes in and run the same duty cycle as the primary. It's almost like a fuel cut in a way that it would just cut off the engine completely
Good point!!!!!


I drove my car with only one secondary coming on for 8 months. When ever the car would hit 3800RPM's and the secondaries where suppossed to come on, the car would die. I could'nt boost more than 6lbs. turns out one of my injector plugs was not in all the way and not making contact

Once I fixed the problem, the car ran awesome.

Last edited by luiml73; 03-31-04 at 02:30 AM.
Old 03-31-04, 10:31 AM
  #41  
Veni, Vidi, Vici

iTrader: (4)
 
Nuvolari's Avatar
 
Join Date: May 2003
Location: Metro DC
Posts: 1,253
Received 1 Like on 1 Post
Just a question RedX7 when did KDR finish you motor ? I just find it strange they didnt give you a heads up your turbos looked like they were on the last leg.

I feel for you man,, I had two cores blown by shops and I am on my fourth set of stock twins .My advice is if you go used save the hassel and have them rebuilt , even if you get the " they boost well and dont smoke "line .

If I had to do it over , I would have let my FD sit for a year and just gone single when I had all the cash . All the lost time and ,money on stock twins


Last edited by Nuvolari; 03-31-04 at 10:35 AM.
Old 03-31-04, 12:01 PM
  #42  
the mazda zoom zoom store

 
zayrx7's Avatar
 
Join Date: Feb 2001
Location: Columbus, Oh
Posts: 749
Received 1 Like on 1 Post
Correct me if I'm wrong, How would blowing your motor cause the turbo's to go bad. The apex seal does not go through the turbo's but through the downpipe.
Old 03-31-04, 12:06 PM
  #43  
Rotary Enthusiast

 
Marshall's Avatar
 
Join Date: Mar 2001
Location: Edwards, CA
Posts: 1,023
Likes: 0
Received 0 Likes on 0 Posts
They go through the turbines and usually tear them up before they get to the downpipe
Old 03-31-04, 12:07 PM
  #44  
the mazda zoom zoom store

 
zayrx7's Avatar
 
Join Date: Feb 2001
Location: Columbus, Oh
Posts: 749
Received 1 Like on 1 Post
that's stock turbo's
Old 03-31-04, 12:08 PM
  #45  
Lives on the Forum

 
rynberg's Avatar
 
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes on 8 Posts
Originally posted by zayrx7
Correct me if I'm wrong, How would blowing your motor cause the turbo's to go bad. The apex seal does not go through the turbo's but through the downpipe.
Pieces of the apex seal can take out the turbines, I'm surprised you've never seen or heard of that before....
Old 03-31-04, 12:13 PM
  #46  
Rotary Enthusiast

 
Marshall's Avatar
 
Join Date: Mar 2001
Location: Edwards, CA
Posts: 1,023
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by zayrx7
that's stock turbo's
or any other turbo. Normally it'll tear up the tips of the turbine blades but you can't usually see the damage until you pull the exhaust housing.
Old 03-31-04, 12:15 PM
  #47  
Veni, Vidi, Vici

iTrader: (4)
 
Nuvolari's Avatar
 
Join Date: May 2003
Location: Metro DC
Posts: 1,253
Received 1 Like on 1 Post
ah, it imploded ...sort of .Either way it sucks , keep the faith you will be back on the road again...soon
Old 03-31-04, 12:29 PM
  #48  
rotary sensei

iTrader: (5)
 
Mr rx-7 tt's Avatar
 
Join Date: Mar 2001
Location: Virginia
Posts: 2,312
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by RedX7
Yeah, apparently the 1200's aren't doing so hot either. Skip said that they've been testing them and they keep flooding out. Freaking injectors! Hopefully, all the bugs will be worked out by next week.
KD sure has a lot of injector failures...
Old 03-31-04, 12:30 PM
  #49  
rotary sensei

iTrader: (5)
 
Mr rx-7 tt's Avatar
 
Join Date: Mar 2001
Location: Virginia
Posts: 2,312
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by RedX7
Yeah, I have the flow test sheet at home with all my other "car stuff papers". They tested fine in all aspects, but the little bastard still killed my engine.
You wouldn't have had these problems or the expense if you would have seen me.
Old 04-03-04, 10:15 AM
  #50  
I swear my car hates me!

Thread Starter
 
RedX7's Avatar
 
Join Date: Jun 2002
Location: San Diego, CA
Posts: 629
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by Mr rx-7 tt
You wouldn't have had these problems or the expense if you would have seen me.
Thanks Chris. Just rub a little more salt in the wound. The obliterated turbos weren't enough, huh?


Quick Reply: 1300cc secondary blew my engine



All times are GMT -5. The time now is 10:07 PM.