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Hey Iowa IV

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Old Nov 15, 2009 | 03:26 PM
  #1  
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Arrow Hey Iowa IV

The 4th in a never ending series of random BS-ing from IA people.
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Old Nov 15, 2009 | 03:38 PM
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No rotary, no problems?
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I want to start this out good.

I love Buffalo Wild Wings!
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Old Nov 15, 2009 | 04:15 PM
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i agree bww !!
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Old Nov 15, 2009 | 09:26 PM
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omg bww ftw!
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Old Nov 16, 2009 | 03:29 PM
  #5  
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Meh BWW is ok. Old Chicago ftw!!
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Old Nov 16, 2009 | 06:05 PM
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Originally Posted by driftfc87
Meh BWW is ok. Old Chicago ftw!!
Agreed. Next meet there is when?
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Old Nov 16, 2009 | 10:57 PM
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buffet action!
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Old Nov 17, 2009 | 12:35 AM
  #8  
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Originally Posted by Sesshoumaru
buffet action!
I definitely was down for the buffet. I guess we should have said we're all BMW owners, maybe we'd have gotten them to start up the buffet for us then. lol Next time buffet for sure!
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Old Nov 17, 2009 | 08:30 PM
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honestly with as good as my car is running i wouldnt mind iowa city meet. where was the last one? cr?isnt there a gyro place in coralville?
old chicago was pretty kick *** btw!! too bad they missled me on the buffet!!S@!!#!@$!@$!!!
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Old Nov 18, 2009 | 12:01 AM
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Think IC a good location - kinda more in the middle-

They have alot of buffets there we can pick from.
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Old Nov 18, 2009 | 06:46 PM
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I'm building my motor this week so any time in the near future is out for me, but if were talking new year getting together I should have all the kinks worked out by then.

IC is cool with me, i'm sure brian won't car either.
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Old Nov 18, 2009 | 06:53 PM
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I'm down for whatever as usual. If there's a good buffet, I'm in.
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Old Nov 18, 2009 | 08:53 PM
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oh wait, isnt there a ceces pizza buffet there ?
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Old Nov 20, 2009 | 07:10 PM
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Im down with wherever but neither 7 will be there unless its warm. They are both stored. I have a new project starting soon, once other projects are finalized which should happen soon.
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Old Nov 21, 2009 | 01:40 AM
  #15  
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Originally Posted by IanS
Im down with wherever but neither 7 will be there unless its warm. They are both stored. I have a new project starting soon, once other projects are finalized which should happen soon.
Gonna put the FD down soon too.
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Old Nov 21, 2009 | 07:28 AM
  #16  
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Don't worry, I'll bring my RX-7! Oh wait...

Times? Dates? Locations?
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Old Nov 21, 2009 | 10:27 AM
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Originally Posted by Ice_Wolf
Don't worry, I'll bring my RX-7! Oh wait...

Times? Dates? Locations?
well for sure the 12th of december i am out. and if it is an odd weekend i will have to bring the mini bus so all my kids can fit. haha.
otherwise i will drive my rx7 in any weather... so long as the snow isnt like... 6 inches deep or more and i have to stop.
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Old Nov 22, 2009 | 02:04 PM
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no rx7s for me either...
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Old Nov 23, 2009 | 10:06 PM
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Originally Posted by Sesshoumaru
Gonna put the FD down soon too.
Hey J if I send you a couple logs from my car do you think you could give me some pointers on my tune? It's running really rich up high in the rpm's and I would like to tune it out a little better.

I don't know if you can do it or what but it would sure beat throwing down 400 bucks for a pro-tune. If not no biggie.
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Old Nov 23, 2009 | 10:08 PM
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Originally Posted by driftfc87
Hey J if I send you a couple logs from my car do you think you could give me some pointers on my tune? It's running really rich up high in the rpm's and I would like to tune it out a little better.

I don't know if you can do it or what but it would sure beat throwing down 400 bucks for a pro-tune. If not no biggie.
what ecu?

can look
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Old Nov 23, 2009 | 10:30 PM
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From: Bettendorf, IA
Originally Posted by Sesshoumaru
what ecu?

can look
It's open source ecu. I'll try to post up a couple logs if I can figure it out. Give me a few mins.
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Old Nov 23, 2009 | 10:47 PM
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Alright here are a couple logs. The stock wideband on my car will only read to 11.25 so pretty much where it says 11.25 it's more like in the 10's high 9's.

Edit: if they don't open for you pm me your e-mail and I can send them that way.
Attached Files
File Type: pdf
File Type: pdf
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Old Nov 24, 2009 | 07:53 PM
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Originally Posted by driftfc87
Alright here are a couple logs. The stock wideband on my car will only read to 11.25 so pretty much where it says 11.25 it's more like in the 10's high 9's.

Edit: if they don't open for you pm me your e-mail and I can send them that way.
Couple things-

Your wastage dutcy cycle is too steep and your over boosting and then backing down.

You already know it's too rich and the logs prove just that.

Cut some fuel out (lower the ms or duty cycle).

You always want to start off with too much fuel and cut back.

Don't WOT after cutting fuel.

Work your way up to peek boost to ensure you have enough fuel (checking your afr).

It should be pretty linear with no abrupt changes.

I have attached two examples of fuel maps for a Rx-7.

The jagged one would not rev past 4k (you might not be able to notice but there is a large increase in fuel around 3.5k).

The other one I linearized and mirror closely what I run in my FD.

The computers use interpolation to calculate the ms for a given load.

Making it smooth will allow a consistant distribution of fuel and nice smooth acceleration.

I also have a few other tricks but I'd have to kill you if I told you
Attached Thumbnails Hey Iowa IV-unmodified-1.jpg   Hey Iowa IV-rx-7-base-map-1.jpg  
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Old Nov 24, 2009 | 11:08 PM
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From: Bettendorf, IA
Originally Posted by Sesshoumaru
Couple things-

Your wastage dutcy cycle is too steep and your over boosting and then backing down.

You already know it's too rich and the logs prove just that.

Cut some fuel out (lower the ms or duty cycle).

You always want to start off with too much fuel and cut back.

Don't WOT after cutting fuel.

Work your way up to peek boost to ensure you have enough fuel (checking your afr).

It should be pretty linear with no abrupt changes.

I have attached two examples of fuel maps for a Rx-7.

The jagged one would not rev past 4k (you might not be able to notice but there is a large increase in fuel around 3.5k).

The other one I linearized and mirror closely what I run in my FD.

The computers use interpolation to calculate the ms for a given load.

Making it smooth will allow a consistant distribution of fuel and nice smooth acceleration.

I also have a few other tricks but I'd have to kill you if I told you
Sooo, you want to help me tweek my map a little? I have another motor sooo
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Old Nov 26, 2009 | 10:19 AM
  #25  
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happy turkey day fellow rx7ers haha
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