How do you get the choppy idle?????
 

I have evo 8 and have hks 272 installed. it doesnt have any lope what so every. I saw videos on the tube of the same cams on a 8 loping like a boss:confused:. Is there anything i can do in the maps to help. I have search the site but only find info on mivec. Any info would be greatly appreciated. i love to learn{thumbup}

Adjust your cam gears...Is your idle high?

cams gears didnt show up yet, no its idling at 850 right now

You can try knocking the timing down in the idle cells. I did that with a buddy's car that had BC 272s and it went from plain-jane idle to beefy cam idle.

Go 280 hks

i dont have my laptop with me but im pretty sure they were around 14, how much can i knock it down?

no wonder it idles smooth. stock timing in the idle area is 5 and I knocked his back to 3/4 depending on how much lope you want. I'd start at 5 though since hks cams seem to lope hard than BC's anyway.

Drop the idle at load 10-40, RPM 0-~1000 to 10*, rinse and repeat til you get a favoured lope. Then smooth cells both down and across.

You'll probably have to reset your base idle as well as adding timing increases RPM.

i have bs 272's.... timing is at 5* and a/f is at 15.4-8 at idle... lope's pretty good

Kelford 272's here. They beat the ground hard. I'm not to sure about hks my buddy has those and they dont lope hard at all.

Im working on my buddies 8 with hks cams and they lope pretty good. Timing is at 5* and idle is set to 962 i believe

The HKS 272's don't have that much lift so they aren't gonna have too much valve overlap (which is where the loping sound comes from when at idle)
Other cams like the GSC S2 and Kelford 272's are high lift cams (around 11mm) and lope much harder than the HKS.

thanks alot guys!!!! this is seriously the best forum i have been apart of. im going to tune it alittle more. And probably go ahead and order some gsc s2.

I would say on a IX thats pretty spot on but on an 8 hks cams do provide a nice loop. Even BC 272's provided a nice loop on my friends 8.

My IX barely sounds like it has cams and im running S2s with idle set to 1030 timing at 6* and mivec at 0. I guess i can lower the idle but i do not want to create issues doing so.

^^^^^^
^^^^^^
This.

The HKS 272 is an outdated cam which is generally considered 'mild' compared to the newer cams on the market these days in the same category. The GSC S2's are a great choice. They provided a great lope (which can be tamed if don't want them to lope much) and they outperform the HKS 272's as well. Just be sure to purchase the GSC Beehive valve springs which are required with the S2's. You can use these springs with the factory retainers and keepers too which saves you nearly $200 as well :)


Here is a video clip of a customer with S2's we installed in his Evo 8 and he specifically wanted an aggressive, lopey idle.

http://www.youtube.com/watch?v=11yc_...e_gdata_player
-Jamie

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Since you're on a IX you can add a bit of MIVEC advance at idle to get some more lope. I'm running 6° MIVEC at idle on Cosworth M2's, idling at 900. 12 degrees timing at idle. I get just a slight lope; just enough to tell the car has cams, not enough to shake apart the whole interior :lol:

i've tried that before and it seemed to cause slight idle issues. i can hear the lope but its nothing like an 8 would have.


heres a clip of my buddies evo 8 that i have been working on with HKS 272s and a muffler delete pipe.
http://youtu.be/ePCUlPjFn14

please post a video i want to hear how it sounds since i have similar cams

Short clip:

http://www.youtube.com/watch?v=E4g5Q...ature=youtu.be

Got lope?

http://s24.photobucket.com/albums/c3...-40-44_599.mp4

Kinda surprised no one brought up the FP4/5Rs those have the best sounding lope ive ever heard on an 8.
The sucky thing about cam lope is the driveability of the car will suffer, around town at those low RPMs is sometimes very unpleasant.

^^^good point!

I actually plan to remove a bit of my choppy idle. Not a fan of the crappy initial start off/parkin lot maneuvers that result from "that cool sound"

Yeah, unstable idle results in unreliable take-off's. It generally requires a quick blip of the gas before starting from a stop. If you take off during one of the lower RPM lopes, it may want to stall and make you look like a silly noob. :p

-Jamie

Oh how I know what you're talking about :lol:

happened to me pulling into a meet, everyone was looking, and my car decided to go to sleep

Throw in a twin - and no rotating inertia.. {thumbdwn}:rolleyes:

if you think its bad in a evo try a rx-7 with a twin 1.3 rotary ftl :thumbdown

Lol, 90% of the evo's I've driven are rocking' an Exedy Twin. I honestly think an Exedy twin is far easier to drive than a heavy 2600lb single disc.

-Jamie

heres my hks 272's

http://www.youtube.com/watch?v=PaX0x6ULBjk

Exedy twins arent bad, Its the tiltons and quartermasters (or any 7.25 clutch) of the world that are a pita. Having big cams in my 8 made it sound so awesome sitting there but like i said before DD suffured and it didnt seem that bad until you hopped in another evo that didnt have huge cams.

Yeah, one of our evo's has a Tilton triple. That's like an on/off switch with nothing in between.

-Jamie

Too much throttle blipping will make you look like a silly ricer, though. Got get it juuuust right!

I´m not an expert in this area. Before I was hks 272/264 in my evo whit a good idle 15.4 AFR and a very nice choppy sound!!! {thumbup} Right now with my kelford cams 272, the car doesn´t sound good for me. :confused: the idle is in 13.4-7 (I change injectors from 560cc to 1,000cc) The cars runs great but I don´t like the sound in idle, sounds normal :crap:... What can I do??

I have an Evo 8 ecu in my car (Evo 4), so I need change what for a choppy sound??

lol, true. You gotta be professional blipper haha.

-Jamie

Leaner AFR and/or lower ignition timing. Cam gear adjustments can do it too.

-Jamie

Ok thanx a lot!!! I only need adjust the low octane fuel map right ????
I dont have cam gear adjusments:crap:

Can you help me only to change those numbers in my map????

I'd be greatful for a smooth idle. My **** idles to damn hard at times and it gets annoying none the least.

jesus!! i got the same cams and sound no where near this. what did you!!!{pcfreak}

You need to make changes in the high octane map, not low octane.

Are your cam gears set to zero or are they degree'd?

So, I need an expert for that, because that change my tune right?

Not really, just remove timing in the 0-1000rpm, 0-40 load area. Don't go below 5°

thank you very much sir!!!!!! {thumbup}

excuseme, how much timing???

mine in that table is in 8*... is ok in 12*???

i always heard you want to lower timing to increase the loop. if thats what your trying to do and your at 8* try going to 6*

my friend's evo 8 is at 5* and its lopey!

You meant to lower ignition timing for more lope. 5* should give you lope alright.

-Jamie

Whoops, yes I did, thanks for pointing that out. Edited my post.

they are degreed and tuned in... making 320kw @ 28psi @ 3700rpm...... on e85

I think you mean duration. Lift is how far the valve opens. Duration is how long it opens for.

Bumping an old thread but I have HKS 272s in my car and the idle sounds so nonchalant, I don't really know anything about changing timing of my idle to get a little loopyness, can someone help me out and offer some guidance?

check your PM

Interesting thread I didn't come across initially. I am getting set to tune for my Kelford 272s on a 9, and the lopeyness was something I thought about, but the other direction. I actually wanted to see if I could tune to pass smog, and particularly at idle the overlap would cause worse or higher readings from a sniffer. At least that is what I have understood from the reading so far.

Can anyone comment on the notion that adding timing in the idle cells at 1000 rpm and below would actually improve the sniffer. Or said another way is the lopey idle and smog sniffer inversely related?

as stated the lope is all in the timing, fuel, and cam gear settings along with base idle. i have mine set at around 750-800rpm. here is my 8 with hks 272's. to me they hit a nice lick and often rock the car back and forth at idle. actually had quite a few compliments and a built subie back down and the owner tell me "b***h sounds nasty".

http://youtu.be/z0IfVtGkYYU

Dang, That sounds great. I have these same cams and my car was tuned and it lopes sometimes but loads up on fuel and dies sometimes. I am trying to fix the tune but I am new at this. :confused:
OK tune guru's, if I only change mt timing at idle to basically from 0-1000 first and second load table to 6* and the next table to 7* and the next table to 9* will this work to hear the cams? I am new and trying to see if I did it right. Thanks
0 load 10 20 30 40
6 6 7 9 10
6 6 7 9 10
6 6 7 9 10
6 6 7 9 10

You're generally between 30-40 load at idle. So you'd want timing in that area to be lower if you want it to lope. You could actually inverse that timing curve to have it like this instead:

10 9 7 6 6

Ok Thanks I will have to try this. I sent my ROM to Appauld and he said it is a very old rom, it is one of the first ROMs used. My ROM # is 94170008. My tune to me looks very crappy, in the middle under boost it has one block that was like 18.3 if I remember correctly. Learning all this info is like information overload to me. I am trying and by the end you guys will probably be ready to kill me. Thanks for the help.
** Well I just went back out to get my Immobilizer code and write it down and I couldn't read the Rom. I tried to do the sicky stuff at the beginning of this section and nothing worked. I cannot even choose what model car I have. I am not computer smart so now this is getting really hard for me.**

Ok, got my ecuflash fixed and installed notepad++ and got it working but I cannot understand what it says or how to convert it to look like everyone elses. Sorry guys I am a NEWB and am lost:rolleyes:.
This is what mine looks like in Notepad, if I can get it to show up here, well I tried and it won't copy and paste here for some reason.. Anyways it just looks like a bunch of letters and not the <Blah> <Blah> like everyone else has. Anyone help me??? I am wanting to do the egr delete to see if it helps fix my idle issue. My car if you rev it and let it fall back down to an idle it will load up and smoke black or sometimes fumble and die. I would also like to put the code in to fix the misfire in the 03 8's. Thanks and sorry I am so dumb at this guys..:crap:

Make sure you are actually opening the xml files from the rommetadata folder, and not your ECU ROM file. Without seeing anything its tough to troubleshoot. Start a thread in the ecuflash forum, but provide a screen shot or the exact steps you are taking. There are so many skilled and experienced guys there all the time, you will get tips into the direction of a solution or the solution real quick. You might get more lookers there too, compared to here since this is deep into the loopy idle thread. {thumb up}

The key I have found is to search for exactly what you are experiencing. Someone else or several have already had that issue. That way too, you don't have to wait for responses.

You nailed it. That is what I am doing, I don't know how to open the metadata in Notepad. Last time I tried I lost everything and couldn't open nothing, I couldn't even get the Ecuflash to work at all.

For folks that have difficulty with the files I suggest reviewing the first couple of segments of recompiles videos. They are a great and easy way to confirm concepts.

https://www.evolutionm.net/forums/ec...-ecuflash.html

Sorry to bring back an old thread. But I'm having trouble getting my car to lope. I have hks 272's. And I have timing in the 30 40 and 50 load cells set to 3 degrees. It acts like it wants to lope but then goes back to a smooth idle. Fuel is at 14.8-15.2 any suggestions? I had it loping nice and then i changed it back and now it won't do it.

Idle
 

can you help me out as well please?