Originally Posted by coastertrav
(Post 294689)
Also if you are looking for a spot on tune contact Tony at T1 in Dallas, he is the man.
He tuned a buddy of mines Civic for under $600 and that included installing Hondata, and the car seriously behaves like stock. Not only that, but you will go home with a baggy that has a lifetime supply of sparkplugs as he pulls them after every run to check for detonation and swaps in a new set. |
Originally Posted by ZX-Tex
(Post 294716)
So what is the deal with all of the spark plug consumption? Why not just use detonation cans? It is pretty easy to hear pinging.
The problem with dyno tuning, is that the shop has you by the balls. They can keep the car on the dyno all day if they want to, while they check out child porn on the computer. |
Originally Posted by hustler
(Post 294741)
I already tried and Tony didn't want my money. He'd rather talk shit about MS "not doing what i want it to do, so won't use it." he wasn't rude or anything, but didn't want $500 to work the dyno and let me tune it. His loss, I was going to bring cash too.
Yeah, he is really big on Hondata and Motec, those are his ECUs of choice. Meh, I can see your point, but at the same time if I was in his shoes I would rather tune somebody else's car than run the dyno while you tune your own for less money. He isn't exactly hurting for customers you know. Anyway, good luck. I'm not familiar with any other tuners in your area. |
Originally Posted by coastertrav
(Post 294754)
Yeah, he is really big on Hondata and Motec, those are his ECUs of choice.
Meh, I can see your point, but at the same time if I was in his shoes I would rather tune somebody else's car than run the dyno while you tune your own for less money. He isn't exactly hurting for customers you know. Anyway, good luck. I'm not familiar with any other tuners in your area. |
any thoughts on tuning spark with EGT? If you have target AFR's tuned with a wideband, why not adjust spark within the acceptable heat range (whatever that may be)?
|
Originally Posted by hustler
(Post 294913)
any thoughts on tuning spark with EGT? If you have target AFR's tuned with a wideband, why not adjust spark within the acceptable heat range (whatever that may be)?
|
Required fuel is 6.5, 550 Injectors, Hi res. Idles perfectly in mid 16's.
__________________ Best Car Insurance | Auto Protection Today | FREE Trade-In Quote |
Originally Posted by jayc72
(Post 294923)
What's acceptable? What makes the most power?
does this make sense? I could log EGT with MS, and it might be really easy. Then I could get it on a dyno and make a couple pulls to be sure everything is safe. |
i would use EGT only as a gut check since both AFR and spark affect EGT.
but remember, AFR affects spark tuning a lot less than spark tuning affects AFR. an AFR that's plus or minus 1 (11:1-13:1) is not going to change power output as much as spark being off 3 degrees. also keep in mind that high EGT is a product of fire on the wrong side of the valves. either because a lean mixture burns slower (and is still burning as the exh valves open) or because you ignited it so late (retard) that it's burning as the exhaust opens. similarly, not advancing spark as RPMs rise will lead to the same result--the burn cycle stays the same while the time between spark and valve events is shorter. just do a quick fuel autotune and then start monkeying with spark. |
Originally Posted by y8s
(Post 294965)
i would use EGT only as a gut check since both AFR and spark affect EGT.
but remember, AFR affects spark tuning a lot less than spark tuning affects AFR. an AFR that's plus or minus 1 (11:1-13:1) is not going to change power output as much as spark being off 3 degrees. also keep in mind that high EGT is a product of fire on the wrong side of the valves. either because a lean mixture burns slower (and is still burning as the exh valves open) or because you ignited it so late (retard) that it's burning as the exhaust opens. similarly, not advancing spark as RPMs rise will lead to the same result--the burn cycle stays the same while the time between spark and valve events is shorter. just do a quick fuel autotune and then start monkeying with spark. Unfortunately autotune never worked for me. I've tied brain's script mods but with no success. |
i guess I meant to say that AFR and spark both affect power.
spark wont affect AFR much at all which is why you can tune it quite a bit before re-doing your fuel map. as the engine starts to make more power at the same RPM/MAP values though, you'll have to add in more fuel. a powerful engine is a thirsty engine. and fix the autotune. or at least learn to use MLV to do it. |
Originally Posted by y8s
(Post 294977)
i guess I meant to say that AFR and spark both affect power.
spark wont affect AFR much at all which is why you can tune it quite a bit before re-doing your fuel map. as the engine starts to make more power at the same RPM/MAP values though, you'll have to add in more fuel. a powerful engine is a thirsty engine. and fix the autotune. or at least learn to use MLV to do it. |
inject the same fuel and air into the chamber and dont ignite it... does afr change?
|
Originally Posted by y8s
(Post 295008)
inject the same fuel and air into the chamber and dont ignite it... does afr change?
Whoa, its like a chemistry classroom in here now. |
reality is more that you need excess fuel for complete combustion of the oxygen available because of the non-ideal nature of a motor. fuel sticks to parts, doesn't vaporize well, etc. dump in more than you need and hope for the best. that need has declined as engines are better designed but it's still there.
i dont know about fat/tq and lean/hp but the difference there is probably more engine speed and airflow related. i wonder if that's more a result than a cause. |
Sorry hustler but I have to ask; no one has replied about what would be an acceptable value for EGTs.
I changed my maps the other day and ever since I find my EGTs are a little higher than before. Can someone give me a reasonable range in EGT temps? Thanks |
i'm pretty sure you want them 1500-1600
|
Originally Posted by Mach929
(Post 295079)
i'm pretty sure you want them 1500-1600
|
Originally Posted by Rafa
(Post 295083)
That was precisely why I asked. I don't see temps on my EGT gauge going over 1,000* and that's with the sensor located less than 1 foot from my turbo (really close to the manifold). Before changing my maps I used to see 800* temps on the gauge but I can recall hearing my local tuner saying that 1,000* temps were a bit high.
|
Originally Posted by Rafa
(Post 295066)
Sorry hustler but I have to ask; no one has replied about what would be an acceptable value for EGTs.
I changed my maps the other day and ever since I find my EGTs are a little higher than before. Can someone give me a reasonable range in EGT temps? Thanks |
All times are GMT -4. The time now is 10:23 PM. |
© 2024 MH Sub I, LLC dba Internet Brands