Rom Tune ?

[street240]

Good News. I talked to him and he is more than happy to come on Zilvia and talk about his tunes. His methods,experience etc. I am waiting to hear back from the mods on whether or not we can start a thread.

[Rockogtr]

well i emailed him my set up and this is what he said, i also asked if he had any dyno sheets for his SR chips...my set up was for a SR redtop, GT2871r,ex. mani, 680 or 550 injectors(not sure what i wanna go with yet), front mount, 3" elbow, cat delete, 3" cat back, z32 MAF, and walboro 255 pump....

thanks for your inquiry, you could send us your ecu and we can tune it for $150.00 + 15.00 express shipping. the turn around on this service is 1-2 business days. or to save money, we could sell you the daughterboard/chip already tuned that is only $105 shipped to you. all you have to do is take your ecu and our directions to any tv/electronics repair shop. they can chip your ecu for less than $10 and 5 mins of your time.

let me know if you are interested.

i dont have the dyno sheet online, but we expand the sr fuel/timing maps to support up to 16psi with a stock setup. that nets you approx 40-50 more hp. more if you have exhaust/intercooler upgrade

[steve shadows]

Originally Posted by johngriff

12.5/1 is good for N/A so he probably just copy/paste the text from another ad.

12.5/1 is a horrible AFR for NA, 14 AFR range is target for NA load tuning depending on octane.

12.5/1 is good if you want horrible gas milage and shitty response.

12.5/1 is excellent tune for race gas and turbocharged applications however.

Is it possible the tune was focused on maximum output for 100 octane?

Possibly tuned for 93 octane and +fuel pressure?

just throwing it out there.

Check out XAT also they are another excellent rom tune shop, although its just a band aid for a real quality EMS imo.

[johngriff]

14/1 loaded n/a on pump is death dude, waaaaay too hot. Cruising yeah, but not WOT, not even nissan stock ecu's is running target 1 at wot.

[timtiminy]

okay I think the whole 12.5:1 afr subject can be put to death as the person that replied to me that has used his ecu said that his sr was running a bit rich so there is no way it was running a 12.5:1 afr. hopefully we can get jason on here and he can answer questions and give us all a bit of insite on his tunes. Hopefully he'll do a zilvia.net special on his tunes in order to get zilvia.net feedback. I think that would be a good idea for his bussiness.

[steve shadows]

Originally Posted by johngriff

14/1 loaded n/a on pump is death dude, waaaaay too hot. Cruising yeah, but not WOT, not even nissan stock ecu's is running target 1 at wot.

check it again

13 is fine for wot.

15 is good for cruising if your looking for fuel economy.

If your trying to make power high 13s or low 14s on RACE GAS is ok.

Ive never seen a car overheat because it was running 13-14 afr under wot and na set up.

but I guess its possible depending on purity of octane.

[steve shadows]

Originally Posted by timtiminy

okay I think the whole 12.5:1 afr subject can be put to death as the person that replied to me that has used his ecu said that his sr was running a bit rich so there is no way it was running a 12.5:1 afr. hopefully we can get jason on here and he can answer questions and give us all a bit of insite on his tunes. Hopefully he'll do a zilvia.net special on his tunes in order to get zilvia.net feedback. I think that would be a good idea for his bussiness.

Yeah your explanation is too vague in the first place.

I mean how does he know its running rich? by smelling it?

If he does a zilvia special i hope he can at least tell us what type of

lamda meter he uses to tune by.

PS. AFR is ok

but LAMDA is a btter rule to tune by

[johngriff]

afr is directly proportional to cylinder temp. Heat is the main cause of detonation, and it is the function being controlled by fuel tuning. We all would love a complete burn, but are very limited by poor octane fuel. There are no mainstream ROM's for racegas, that is why all the rom's you see will be in the 12's for na and 11's for turbo (jwt 10.8 z's in the 90's.. rofl).

[Rockogtr]

i also pm'd him about the afr ....

"thanks for your inquiry, we actually run the sr's on 11.5-12.0 a/f. the 12.5 is a typo. "

[s13gold]

on ebay go to the sellers feedback and try to email people that have already purchased ecu's from this guy.

[timtiminy]

s13gold:I did that, you can read the response that an actual user gave me on the E-mance tune for his SR

[chlatboy]

Enthalpy FTW. They are more gung ho on their tunes meaning their tunes can produce more power compared to JWT. But JWT is also a good place. Call both and ask for pricing and see from there.

[street240]

I started a new thread here-http://www.zilvia.net/f/showthread.php?p=1347935#post1347935 where we can ask our questions directly and hopefully find a new source of rom tunes or write off completely.

[chuckydj]

Alright, well first of all, i was the one quoted about the ecu with one loosely soldered pin. I received the ecu back from Jason on Monday and just tried it. The car runs great, just like it did the first two weeks i had it. He doesnt do the ecu soldering in house anyway, so technically not his fault. He also has a computer to test ecus for diagnostic purposes. His method of tuning is no different from JWT or Enthalpy, just a lot cheaper because those companies think they have you by your ba!!s and you cant get a custom tuned ecu anywhere else. Once you have the correct software and a knowledge and archive of maps for tuning, mass production is cheap. He also has a dyno in house. The nissan ecu reads the program to run the car from a chip already existing on the ecu. (Im referring to a 16 bit one cause thats what i have). A jumper is moved on the back of the board to make the ecu read from an external source (your new 8 bit chip, if you have an 8 bit ecu, or the daughter board with dual 8 bit chips if you have a 16 bit ecu. Driveability is excellent with the tune and gas milleage is not noticiably different. Get to know this guy and he could make tuning for the Nissan world a whole lot cheaper for everyone. Whats a dyno tune cost? $500-$600 plus your controller!?! Versus about $150 for a prom tune that is identicle to that of JWT and Enthalpy ($500 for their ecus). Another reason Jasons tunes are so much cheaper, is all you are paying for is his knowledge and the chips/daughterboard, NOT a whole F#$#%ing ecu! You can email me at [email protected] and i will answer any questions about him. I just tried his ecu tune off of ebay just like anyone else.

[Rockogtr]

i think im gonna order my chip this week but i wont be able to get some dyno #'s for a month or so...ill keep everyone posted

[s13gold]

yeah jwt is on the conservative side for sure...then enthalpy is more aggressive. if you're gonna be drifting and autox go with jwt beccuase your car is gonna be bouncing off the rev limiter and u want the fuel to be sufficent yet safe. safer is better in my opinion.

[nosajton]

Hi this is Jason, owner of Emance LLC, i see there is a lot of interest in my services on here, any questions you have please pm or direct to the new thread setup at: http://www.zilvia.net/f/showthread.php?p=1347935

I see some of you were tripping out about the 12.5 afr at WOT. that was a typo and should of read 11.5