Should I remove the aux port valves?
#1
My other car is a TVR
Thread Starter
Join Date: Jun 2005
Location: Calgary
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
Should I remove the aux port valves?
I've got 6 port 13b, street ported with rx8 rotational assembly and resultant compression, K&N intake, RB exhaust. I've upgraded the secondary injectors to 550cc. There are other mods to the car but none worth mentioning here as I don't think they would affect the running of the engine per se.
The car since I got it about 4 years ago has always been a fire breather, but I seriously suspect the injector upgrade is massively over-fueling the engine.
Today while maintaining the car I noticed one of my actutators is seizing up and to see what happens I wired them both fully open. In theory, from what I've been told, this extra air should kill my low end torque but increase power in the top end.
I just came back from a test drive and I'd have to say that low-end is about the same, mid-range is better, and top end seems better too... likely due to one actuator open for the first time in a long time. The car seems to spit fire less, so IOW, the gas is burning in the engine where it should be.
If the 550cc injectors are over fueling the engine, wouldn't removing the aux port valves help things all around?
The car since I got it about 4 years ago has always been a fire breather, but I seriously suspect the injector upgrade is massively over-fueling the engine.
Today while maintaining the car I noticed one of my actutators is seizing up and to see what happens I wired them both fully open. In theory, from what I've been told, this extra air should kill my low end torque but increase power in the top end.
I just came back from a test drive and I'd have to say that low-end is about the same, mid-range is better, and top end seems better too... likely due to one actuator open for the first time in a long time. The car seems to spit fire less, so IOW, the gas is burning in the engine where it should be.
If the 550cc injectors are over fueling the engine, wouldn't removing the aux port valves help things all around?
#2
High Comp Booster
iTrader: (4)
Join Date: Apr 2009
Location: Oakville, Ontario
Posts: 1,907
Likes: 0
Received 0 Likes
on
0 Posts
No it would not help the 550's are probably hurting your top end
is the motor running off the stock ecu?
to put it in to perspective even with the stock 440's the its rich up top
is the motor running off the stock ecu?
to put it in to perspective even with the stock 440's the its rich up top
#3
My other car is a TVR
Thread Starter
Join Date: Jun 2005
Location: Calgary
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
I'm not expert but I'm not sure top end is much of a problem... 6 to 8k RPM seems to be where the power kicks you in the seat of the pants.
With all that over-fueling, do you think I could get away with a NOS dry kit?
Last edited by Ctrl; 03-28-10 at 04:08 PM. Reason: forgetfulness
#5
My other car is a TVR
Thread Starter
Join Date: Jun 2005
Location: Calgary
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
There's a base model s4 in the boneyard right now... I better go scoop up those 440's before their gone.
#7
My other car is a TVR
Thread Starter
Join Date: Jun 2005
Location: Calgary
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
I just did a full body-off chassis restoration... all my own work and elbow grease.
I've got a full thread with hundreds of pics on pistonheads.com, but to give a small sample of the work and attention to detail I've done, check this out:
Yeah, I own a VW as well now.
http://www.vwforum.com/forums/f34/my...its-tvr-40192/
For the FULL restoration thread with far more pics see: http://www.pistonheads.com/gassing/t...599&i=0&nmt=My nightmare... errr restoration thread.&mid=72599
Last edited by Ctrl; 03-29-10 at 07:25 PM. Reason: bcuz i'm an idiot?
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
Skeese
Adaptronic Engine Mgmt - AUS
65
03-28-17 03:30 PM