blitz jam mines etc ecus what the big £ about

DavidAshton

Member +
Im a blitz access user myself and can't fault it. I could sit here for a while arguing why they may or may not be better than emanage etc. but i think the main reason they are fetching the money they do (main question of this thread?) is knowledge.

To me it seems that many new users coming to the starlet world may have limited knowledge about "proper car tuning" that these ecu become the only option.

Ive been around the starlet tuning world for the last 4 years and I wouldnt even know where to start looking for a alternate ecu. There are so many options that bring into play so many other factors, like extra harness' and map sensors, tuners, where to take it, costs that need to be considered. A hell of a lot of research is needed to work out whats best cost and performance wise for your car. A plug and play ecu eliminates all of this.

I imagine a lot of new starlet owners who tend not to be forumers do a quick bit of research (type "starlet ecu" in google and its mainly plug and play results), see this as a complete package with no messing about, no research to do, just off they go. These ecu's that pop up on ebay and sell for £500+ never seem to surface on the forums like in members rides updates which again leads me to believe again its this new generation of starlet owners who arn't forums based. The price drop in starlets does seem to have opened them up to a bigger market. This has even happened to me when ive bumped into new local owners who dont use the forums but know about these ecu's and seem to be on the hunt for them and willing to pay a lot of money

Thats my main thoughts as to the price hike and why they are fetching the big money, I may be wrong.....

Off main topic, i have never seen these be plugged in and then the engine let go. Id like to see a case where this has actually happened.
 
Last edited:

Chris@CCM

Member +
I give up realy if running a fcd and reg is crude i don't even wanta get started on this , if the car over boost when the ecu can't tell it's geting more boost cos the map sensors Maxed out ..... Bang it has no idea to pump more fuel in or take out timing bar the knock sensor and by the time the sensor picks that up it bye bye black bird ! Never mind the rich afrs are probly there to stop it dettn and let it run abit of timing !
Il post up a write up of what any one of u guys could do ur self with 500 pounds !
This is the last post il be making on this .
 
Last edited:

hardcoreep

Member +
if the car over boost when the ecu can't tell it's geting more boost cos the map sensors Maxed out
This is anti everything I've learnt, known or experienced. If the MAP SENSOR is so important then how can a HONDA, that from factory has no possitive pressure reading tables activated in its ECU be turbocharged. Do you know how they used to turbocharge Hondas in the USA? They'd get a one way valve to bypass the error thrown by a stock Honda ECU when it sees positive pressure. Then they'd use a a fuel pressure regulator to bump up fuel for the turbocharger. Its the same principle. I seen it done over and over with little issue from here in Jamaica to Washinston DC. My friends used to use a fish tank valve.

here, from the Honda folks themselves
the stock map sensor is CAPABLE of READING boost to 9 or 10 psi (obd0 / obd1or2), however, the ecu WILL throw a code if it sees more than 2psi ish on it, which is why you need the bypass valve.
You can also look up what a MISSING LINK is for a Honda.

What is going to happen is that at 15psi whatever the injector duty cycle is, that's what the car will use. However, since the timing will relate to that as well whatever the afr is as not to generate detonation it will continue.

15 16 17 18 19 20 21 22psi boost you're running

15 15 15 15 15 15 15 15psi - all your ECU see

80 80 80 80 80 80 80 80% - injector duty cycle as seen by the ECU since 80% is the last value in its settings

10 10 10 10 10 10 10 10degrees - timing value as determined by 15psi

As boost increases so will airflow leaning out mixture. The car will respond as if its still running 15psi until it senses knock. If the boost level is too high for the afrs it will lean out and the car will experience detonation. It will do as if it was still at 15psi, regardless of peak boost that caused damage.
 
Last edited:
I could be wrong but aren't Honda's mapped using the tps and the starlet used the map sensor. Boost isn't going to have any affect on the tps signal where as if the map sensor is out of range then the ecu has no idea what going on. Like I said, my point could be stupid and way off topic
 

hardcoreep

Member +
I could be wrong but aren't Honda's mapped using the tps and the starlet used the map sensor. Boost isn't going to have any affect on the tps signal where as if the map sensor is out of range then the ecu has no idea what going on. Like I said, my point could be stupid and way off topic
My point about the MAP sensor is that, yes, it has no idea what going on BEYOND its settings, but it operates based on its last settings. This is why the JAM CLAMP TYPE FCD works. The starlet MAP sensor reads a full 15bar. The clamp kills the 13.7psi fuel cut. The car therefore operates as if its still at 13.7bar, it doesn't blow itself to bits or go crazy. The amount of boost you can run past that point will be determined by your afr matching the timing.
 

whiteglanzav

Member +
1: The eManage BLUE has no provision inside its software to RAISE the rev limiter or ELIMINATE speed cut. If it does please show me where is can do these things. These features are only available in the eManage Ultimate which offers two modes of speed cut and rev limiter increase.

it must do - i am not 100% on the rev limit but on my emb a bit ago i had over 140mph so how could i have done that with no other electronic programme correcting it ?
 

Chris@CCM

Member +
any turbo honda over here uses ectune crome apexi pfc or better with diffrent map sensors etc not a wanky fpr and a ball and a spring thats just poor work manship mabby if u only had $10 to ur name but flip me thats a poor way to go about it ! That's like cave man tuning lol ! It's dirt cheap to chip Hondas to be able to do this Ive not Idea y u would go about it like that
 
Last edited:
Murray, they ARE LOCKED.

Not exactly "LOCKED". - I am sure you know but just for other people wondering well why the hell can't you unlock them!

When Toyota prepare their ECUs they write their file (File with the map) onto a ROM chip. The chip is a ROM and not an EPROM. Most other car manufactures use EPROM which is an Erasable Programmable ROM.

You can only remap a standard ECU that uses an EPROM and not just a ROM.

There is no way of unlocking it or making it erasable etc...
 

gv1.3

Admin
might be some confusion there Aidan. I think he meant the JAM etc ECUs are locked. As in they encrypt the contents and use a decryption device so that people cant just tweak the actual JAM settings or copy them and make copies of the plug n play ECU's
 

hardcoreep

Member +
any turbo honda over here uses ectune crome apexi pfc or better with diffrent map sensors etc not a wanky fpr and a ball and a spring thats just poor work manship mabby if u only had $10 to ur name but flip me thats a poor way to go about it ! That's like cave man tuning lol ! It's dirt cheap to chip Hondas to be able to do this Ive not Idea y u would go about it like that

That because you guys just started tuning Japanese cars, much less Hondas. There are cars here making 300whp with that set-up. People with management tend to be racers. This is most common with B-Series cars which have a limited map amount. The K-Series requires ECU management. I agree with you about the caveman tuning, but I'm happy that I started at the bottom as its a)given me a base from which I adapt/understand how things really work b)I haven't developed the arrogance of many. I can appreciate a 300whp D16A powered EG using a t3/t4, 12:1 fmu, 430cc 4G63 injectors, a Lancer Evolution fuel pump, and a fish tank bypass valve in series.
 

Chris@CCM

Member +
What do u do about the advance ? Just back the dizzy off ? Are they not very poor to drive off boost ?
I can see what u saying but for all the cost of Crome etc you should be able to get a much more drivable car .
 
might be some confusion there Aidan. I think he meant the JAM etc ECUs are locked. As in they encrypt the contents and use a decryption device so that people cant just tweak the actual JAM settings or copy them and make copies of the plug n play ECU's


Ah ok I thought he might have been referring to the stock ECU!

I wonder are all the aftermarket boards JAM / Blitz / TOMs use are all the same? Like a generic board one of them made it up and sold it to the other companies. Kind of suspicious that they all give the same end result like remove fuel cut / raise rev limit to 8200rpm / advance timing the same etc..

Has anybody identified any visual difference of a JAM ecu and other pnp ecus.?
 

alan_d

Lifer
just spent 4hrs typing a reply only for the forum to boot me out and make me log back in - gutted!!!

basically, yes plug and plays do serve a purpose, rewind to the mid nineties and you could walk into a japanese tuner and lift a blitz k1-200v off the shelf paired with a Blitz access and have 200bhp 200lb/ft safely (that was the product pairings goal) when matched with a full compliment of blitz products for your specific model. To this day I believe its the ultimate EP spec for driveability and response in every way.

How people came to have them for the most, was on cars that came over here, and were broken/raped/pilaged, thus then strapped to other cars perhaps less suitable.

Id love to see a back to back shootout on a K1 with an access, and with a stock ecu.
Dont forget that the japs ran 105 octane too, so a control fuel like sunoco would be required.

15+ years ago the japs were running 800/1000 bhp on piggybacks! check out the original spec zenitani r33 running 8s, with SITC, SAFC etc all strapped to a stock ecu!!!
 

spuddy

Ulster Area Rep.
To be honest I wouldn't bother with an ECU until after 220-230hp, my TD04 fueled perfect on a rrfpr up to 1 bar, after this point you really need to start paying attention to ignition timing.

I don't think I'd like to use some preprogrammed ECU, I don't quite believe they are self learning ECUs, its not quite the time of Skynet just yet. I like the option of having the car tuned to suit each mod, Chris can tell ya, any wee thing I changed on my car I was up for a remap, be it an air filter, cams, different exhaust, difference manifold. It's surprising just how much a map is thrown out and sometimes dangerously out, just by replacing a part of your setup.

I'm rebuilding my current turbo and changing the exhaust and the car will once again have a complete remap.

I do think though for guys that are not really into racing or pushing the limits of the car then piggybacks are more than enough to get a nice 280hp, hell I had well over 400hp on an EMU at one stage.

Standalone for the win!


Let me know when the ECU tests are being done, I want to test my motor out on 5E and 4E marks, may aswell do it all on the one day.
 

hardcoreep

Member +
I don't think I'd like to use some preprogrammed ECU, I don't quite believe they are self learning ECUs, its not quite the time of Skynet just yet. I like the option of having the car tuned to suit each mod, Chris can tell ya, any wee thing I changed on my car I was up for a remap, be it an air filter, cams, different exhaust, difference manifold. It's surprising just how much a map is thrown out and sometimes dangerously out, just by replacing a part of your setup.
Yah know considering the fact that an ECU can calculate and store fuel trim data IS ACTUALLY WRITTEN IN the technical documents for the Toyota ECU, I still find it weird that people would continue to make such an uniformed comment. Just be glad you don't own a Subaru.
 

rwdstarlet

Member +
im making 190.6bhp on a jam ecu with the standard turbo! i love my ecu its worth £650 to me all day long i dont have to pay for a costly remap! i can sell it on for the same as wot i paid for its super rare, hayes dynotech in erith couldn believe how good the ecu was? also he had glanza in pictured on their flyers and is a member of one of the starlet forums and he made 209bhp on a apexi power fc and had many more upgrades than my car inc turbo i think.

when i arrived they asked me wot i had done to the car and asked me to estimate a figure i said 180 and they laughed and told me bout the power fc glanza that only made 209. they were shocked and impressed with my results p&p ftw in my opinion

i think ur talking about me lad, the only reason it made only 209bhp is cos the injector driver was shattered in my ecu. so i made 209 bhp wit a broken ecu. standalone FTW.
 

Ted

Member +
Yah know considering the fact that an ECU can calculate and store fuel trim data IS ACTUALLY WRITTEN IN the technical documents for the Toyota ECU, I still find it weird that people would continue to make such an uniformed comment. Just be glad you don't own a Subaru.

dont think it was unimformed. most people over here accept they trim a little bit. my first jam ecu on std injectors fuelled into the 9s afr on a td04 at a bar. was obviously mapped for something else and couldnt trim enough. car didnt detonate and made 200bhp so was happy enough tho.
 
Top