turbo lsj issues, breaking up
Member
Joined: 10-27-06
Posts: 210
Likes: 0
From: Mass
Hey dude, I know we have been trying to chase this issue down for a while now... Even when it was with the draw through MAF with my tune.... and in all my logs the car loses MAP pressure. Now i know we thought it was the wastegate fluttering at first and we swapped and etc etc. but check your logs now and see if it is still doing it. Wondering if possibly the turbo is too small? What are the housing sizes again on that thing?
I also double checked the dyno charts and where it falls off is at 6,200 rpm. Obviously if it is losing map pressure it will not continue to make power so I think that is the issue that needs to be addressed.
Just food for thought.
I did check on the axles btw... and waiting to hear back from the warehouse on what they can do for us on price and availability
I also double checked the dyno charts and where it falls off is at 6,200 rpm. Obviously if it is losing map pressure it will not continue to make power so I think that is the issue that needs to be addressed.
Just food for thought.
I did check on the axles btw... and waiting to hear back from the warehouse on what they can do for us on price and availability
this sounds exactly what is happening with my car also right at about 18psi it falls flat on its face at 6300rpm the torque drops considerably
ive yet to change plugs but thats the first thing im going to try
as stated in other threads, this is specifically why I want a aftermarket ignition, the stock one is not "good enough" as everyone thinks it is
ive yet to change plugs but thats the first thing im going to try
as stated in other threads, this is specifically why I want a aftermarket ignition, the stock one is not "good enough" as everyone thinks it is
this sounds exactly what is happening with my car also right at about 18psi it falls flat on its face at 6300rpm the torque drops considerably
ive yet to change plugs but thats the first thing im going to try
as stated in other threads, this is specifically why I want a aftermarket ignition, the stock one is not "good enough" as everyone thinks it is
ive yet to change plugs but thats the first thing im going to try
as stated in other threads, this is specifically why I want a aftermarket ignition, the stock one is not "good enough" as everyone thinks it is
Thread Starter
Senior Member
Joined: 10-14-06
Posts: 2,318
Likes: 2
From: New Bedford, MA
Well when I got the new wastegate I don't loose MAP anymore. It really feels like it pulls all timing advance a a certain point. With my recent logs you could never tel anything is happening, but when you hit the rollers or drive the car it feels like I get a parachute thrown out the back. It's like a switch, instantly I loose power where i should be seeing my highest numbers.
Once I get an axle in I'm just going to crank the boost and see if the issue is tune related or not finally thanks to Paul.
Once I get an axle in I'm just going to crank the boost and see if the issue is tune related or not finally thanks to Paul.
Member
Joined: 10-27-06
Posts: 210
Likes: 0
From: Mass
I'd think u'd def be able to see if its pulling timing advance in a log file....It wasnt losing timing in any of the logs I have of it but at that point it was still losing MAP. Be interesting to see once you get the axle back in it.
wow, this is way worse than my shooting ducks problem... which i fixed by the way... ******* iridiums...
some how they snuck back in my motor when i wasent looking lol
does anyone have probs with autolites? i usaully stick to my good ol copper ngk's but im trying autolites and i like em!
some how they snuck back in my motor when i wasent looking lol
does anyone have probs with autolites? i usaully stick to my good ol copper ngk's but im trying autolites and i like em!
the 3922 are really 2 steps colder than a n/a plug just some food for thought... i run lots of boost, meth and timing and i never have any "glow plug" issues with 3923's
i have ran bkr8's which are 2 steps colder than stock (so really three) and the car ran like ass when not in boost
probably was, there are a lot of little tables in there that can be easily overlooked.
As for the plug issue, I could never get the car to run right on copper plugs, would get some serious spark blow out no matter what I did. Switched back to the NGK iridium 2-step colders and never once had a problem (well except when I foul them out with the 2-step lol). 22.10 psi 93 octane pump gas. She loves it.
As for the plug issue, I could never get the car to run right on copper plugs, would get some serious spark blow out no matter what I did. Switched back to the NGK iridium 2-step colders and never once had a problem (well except when I foul them out with the 2-step lol). 22.10 psi 93 octane pump gas. She loves it.
thats so weird because i was having a blow out problem with my bkr8eix but they were heavily used i'd say 10k mi. i used to swear by em till i went turbo and it kept blowing out spark on cold cold nights, so i switched to stock heat range copper autolite and the prob went away so i dont know anymore about this whole spark plug ****...
everyone seems to get different results
everyone seems to get different results
but the stock plug is already a boosted/forced induction plug! its already 1 step colder from say a stock 2.2 plug
so your BKR8IEX's are 3 steps colder than a N/A 2.2 plug...
so your BKR8IEX's are 3 steps colder than a N/A 2.2 plug...
in case anyone is looking for copper core heat range 8 plugs:
http://www.sparkplugs.com/more_info.asp?AAIA=&pid=30246
http://www.sparkplugs.com/more_info.asp?AAIA=&pid=30246
yeah but the gap is way too big, they end up turning into glow plugs on me (run it pretty rich). and random other bad sparkplug things. **** I went with the 9's on the stock pulley, injectors and a tune. Car ran a lot better.