Thread: Ignition Timing Tuning Questions.

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2012-08-17 20:48:24

#21

unijabnx2000 Online/offline status of unijabnx2000 is unknown

This will not end well

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Originally Posted by gorillam

Originally Posted by unijabnx2000

just b/c you are using the S13 base map doesnt mean anything definitive. I used settings in my tune from the S15... but i still have a FWD SR20 engine..

Ok so now you know everything about the car, do you have some ignition timing tips?

I was just trying to figure out what your setup is. All you put in the first post was sr20det and aem

Last edited by unijabnx2000 on 2012-08-17 at 20-52-41.

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2012-08-17 20:49:39

#22

gorillam

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Originally Posted by unijabnx2000

Originally Posted by gorillam
Originally Posted by unijabnx2000
Originally Posted by gorillam
Originally Posted by unijabnx2000
Is this a RWD or FWD SR20?

This is going no where, do they make a fwd s13?

just b/c you are using the S13 base map doesnt mean anything definitive. I used settings in my tune from the S15... but i still have a FWD SR20 engine..

Ok so now you know everything about the car, do you have some ignition timing tips?

I was just trying to figure out what your setup is. All you in the first post was sr20det and aem

I just didn't expect to get bombarded with everyone's question lol sorry, I should have posted more about the car. I am really just looking for pointers and general theory/good reads on how to tune ign timing for an sr20.

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2012-08-17 20:50:16

#23

cortrim1

The Repair Man

Join Date: 2008-07-22
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Originally Posted by gorillam

Originally Posted by cortrim1
Originally Posted by gorillam
Originally Posted by cortrim1
if this is your first time take to a professional. Poor tuning causes things to go boom. btw I run aem and I can set it up but take it to a pro for tuning.

You didn't help answer my questions, what if I had two spare motors and I am very interested in becoming a pro at tuning and I need to start somewhere, would you respond like you did, well then what EGT temp do you tune for?

First off forget using the egt numbers. Unless you read all four cylinders. the reading from one cylinder only tells you what is happening in that one cylinder. You can use the egt as a reference along with the af ratio. I tune by load,tps and afr. The aem tuning guide is a good place to start. You can also take efi classes which is what I would do. Learning the hard way by blowing stuff up gets expensive quick.

Absolutely agreed, I will definitely have a read on the aem guide. What EFI classes would you recommend?

About the clamp on EGT sensor, I guess you could just compare the clamp on egt reading to the probe and adjust the factor and know what the temp inside is. the only problem with reading the outside of the tube is there will be a significant temperature difference from the metal heat soaking across the welded joints will be different, as well as if the pipes are not identical in shape they will all head differently, ie bends and straight sections.

Cool tools though!

Thanks.

efi 101, efi 102 and aem tuning. these are offered from the efi university. Like you I would like the further my understanding of tuning so I can do every thing myself.

Best of luck with your endeavor

EFI University - Electronic Fuel Injection Tuning, Training and Certification

Last edited by cortrim1 on 2012-08-17 at 20-51-01.

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Mike
92 SE-R SR20VE-T 6262 Powered 535whp and 380lbft @22psi
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2012-08-17 20:52:24

#24

cortrim1

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Originally Posted by gorillam

Originally Posted by unijabnx2000
Originally Posted by gorillam
Originally Posted by unijabnx2000
Originally Posted by gorillam
Originally Posted by unijabnx2000
Is this a RWD or FWD SR20?

This is going no where, do they make a fwd s13?

just b/c you are using the S13 base map doesnt mean anything definitive. I used settings in my tune from the S15... but i still have a FWD SR20 engine..

Ok so now you know everything about the car, do you have some ignition timing tips?

I was just trying to figure out what your setup is. All you in the first post was sr20det and aem

I just didn't expect to get bombarded with everyone's question lol sorry, I should have posted more about the car. I am really just looking for pointers and general theory/good reads on how to tune ign timing for an sr20.

btw if you look in the tuning section of the forum you will see some timing maps.

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Mike
92 SE-R SR20VE-T 6262 Powered 535whp and 380lbft @22psi
http://www.cardomain.com/id/cortrim1
http://www.av-engineered.com/

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2012-08-17 20:54:41

#25

gorillam

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Join Date: 2012-08-15
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Originally Posted by cortrim1

Originally Posted by gorillam
Originally Posted by cortrim1
Originally Posted by gorillam
Originally Posted by cortrim1
if this is your first time take to a professional. Poor tuning causes things to go boom. btw I run aem and I can set it up but take it to a pro for tuning.

You didn't help answer my questions, what if I had two spare motors and I am very interested in becoming a pro at tuning and I need to start somewhere, would you respond like you did, well then what EGT temp do you tune for?

First off forget using the egt numbers. Unless you read all four cylinders. the reading from one cylinder only tells you what is happening in that one cylinder. You can use the egt as a reference along with the af ratio. I tune by load,tps and afr. The aem tuning guide is a good place to start. You can also take efi classes which is what I would do. Learning the hard way by blowing stuff up gets expensive quick.

Absolutely agreed, I will definitely have a read on the aem guide. What EFI classes would you recommend?

About the clamp on EGT sensor, I guess you could just compare the clamp on egt reading to the probe and adjust the factor and know what the temp inside is. the only problem with reading the outside of the tube is there will be a significant temperature difference from the metal heat soaking across the welded joints will be different, as well as if the pipes are not identical in shape they will all head differently, ie bends and straight sections.

Cool tools though!

Thanks.

efi 101, efi 102 and aem tuning. these are offered from the efi university. Like you I would like the further my understanding of tuning so I can do every thing myself.

Best of luck with your endeavor

EFI University - Electronic Fuel Injection Tuning, Training and Certification

That's exactly what I need, I don't really like to master anything completely I like to know just enough to understand what is going on, and be able to adjust settings if there are different' situations ie. different track conditions etc..

I would hate to take my car to a dyno, spend a fortune and not be able to change anything myself.

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2012-08-17 21:02:00

#26

unijabnx2000 Online/offline status of unijabnx2000 is unknown

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Well im just learning myself, but his would be bad

This would be better

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2012-08-17 21:04:10

#27

gorillam

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Originally Posted by unijabnx2000

Well im just learning myself, but his would be bad

This would be better

LOL holy F**** that is bad, that would be like riding the bull at the bar lol!

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2012-08-17 21:04:11

#28

S@nt0s

MunkyW3rkz Racing

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seeing that graph reminds me why i love E85 lol i did a double take on the timing map lol

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2012-08-18 17:36:14

#29

ashtonsser Online/offline status of ashtonsser is unknown

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The point is to get a timing map as smooth as possible. The smoother it is the better the AEM can make the changes. If it has to constantly jump around your timing will be so far all over the place that your asking for problems.

Also, key on boosted motors is to have the timing lower at your peak torque and then slowly raise timing as you approach redline. As the motor turns faster it will require more timing to keep the power up.

Ill post my timing map later.

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1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
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2012-08-18 19:36:27

#30

nsusammyeb Online/offline status of nsusammyeb is unknown

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