silvertop 20v ecu with blacktop motor

[Akury]

Hi guys,

Does anyone know whether this would work? Or are they basically identical?

Cheers

[skiddz]

dude did you even search? do you even remotely know these motors? 1 is map and one is afm ill leave you to figure out which one is what, but in short no you cant

[sideshow]

yes it would work

u will need afew parts though

1st part is a blacktop 20v ecu

then u have to rewire it to auit the blacktop ecu

hehehehehe

it wont work

one is map one is air flow

for the price u woul dpay to try gettin it to work u coul dbuy a microtech or the proper ecu to run it std

do u have blacktop engine

and do u have the blacktop loom cause these are hard to find

i can get silvertop looms but not blacktop

dont waste yr time tryin to get it to run

for money spent compared to performance u might as well give me 1000 bucks
instead of throwing it down thw drain

[FASTFOO]

I Have done this and it go's very well I would say better than a blacktop.
Not sure why it is just my experience maybe better tune for silvertop.
And the loom is an easy mod only about 5 wires.

But as sideshow said it may be hard to find a blacktop ECU and MAP sensor.

MATT.

[.T.]

have map sensor. try NZ for the ecu if you really want to do this mod

T

[Jorrs]

I Have done this and it go's very well I would say better than a blacktop.
Not sure why it is just my experience maybe better tune for silvertop.
And the loom is an easy mod only about 5 wires.

But as sideshow said it may be hard to find a blacktop ECU and MAP sensor.

MATT.

not saying i dont believe you, but dont see how it could make it run better ?

[c2888]

If you read the heading, it says BLACKTOP MOTOR on SILVERTOP ECU.

But everything said about in posts about the wiring applies

I'd say it'd run fine, just not as well as a blacktop motor with blacktop ecu, do it and tell us how it goes.

Silvertop electrics are pretty easy to find nowadays, goodluck with your combo.

Dan

[FASTFOO]

If you read the heading, it says BLACKTOP MOTOR on SILVERTOP ECU.

But everything said about in posts about the wiring applies

I'd say it'd run fine, just not as well as a blacktop motor with blacktop ecu, do it and tell us how it goes.

Silvertop electrics are pretty easy to find nowadays, goodluck with your combo.

Dan

OH That heading

[-GT-]

I Have done this and it go's very well I would say better than a blacktop.
Not sure why it is just my experience maybe better tune for silvertop.
And the loom is an easy mod only about 5 wires.

But as sideshow said it may be hard to find a blacktop ECU and MAP sensor.

MATT.

And you've compared it to a blacktop running blacktop ecu? Have you got dyno printouts or timeslips or what? I'm just struggling to believe that a blacktop ecu runs a silvertop better (what do you mean by 'better'?) than the blacktop engine it was designed for? And you seem to be claiming that without backing it up? "I would say better than "?

Let's try and keep the tech section strictly on fact guys. Yes, the engines may run ok with the alternate ecu on them as they are very similar engines, but they are not the same. These differences (cams, compression, vvt vs vvti, injectors? etc) are why toyota spent the money developing and manufacturing a new ecu specific for the blacktop. If the engines were the same and ran better or as well on the other engine's ecu they would've just used the ecu they already had on the shelf.

[FASTFOO]

"And you've compared it to a blacktop running blacktop ecu?"YES
Have you got dyno printouts or timeslips or what?NO BUT I CAN MAKE SOME UP (LIKE OTHERS DO) IF THAT WILL HELP NO JUST SEAT OF PANTS DYNO.
I'm just struggling to believe that a blacktop ecu runs a silvertop better (what do you mean by 'better'?) than the blacktop engine it was designed for? THATS BECAUSE YOU DO NOT HAVE EXPERIENCE IN DOING THAT. DO IT AND THEN YOU WILL KNOW
And you seem to be claiming that without backing it up?YEP I HAVE NOTHING TO PROVE BELIVE ME OR NOT I DO NOT CARE I AM JUST SAYING WHAT HAPPEND WHEN I DID THIS
Let's try and keep the tech section strictly on fact guys. YES I AGREE AND IF IT WAS HEARSAY I WOULD NOT POST IT BUT AS IT WAS FIRST HAND I CALL IT FACT.
Yes, the engines may run ok with the alternate ecu on them as they are very similar engines, but they are not the same. These differences (cams, compression, vvt vs vvti, injectors? etc) are why toyota spent the money developing and manufacturing a new ecu specific for the blacktop.TRUE BUT THE MAIN REASON IS FOR EMISSIONS AND I AM NOT SAYING THAT A BLACK TOP ECU ON A SIVLERTOP IS THE BEST COMPROMISE FOR ALL THINGS INC EMISSIONS WHAT I AM SAYING IS THAT AFTER DOING THIS SWAP FIRST HAND THE SEAT OF THE PANTS DYNO TELLS ME IT WENT FASTER THAN A BALCKTOP ON BLACKTOP ECU (BOTH CARS WERE CLUBMANS BY THE WAY)
If the engines were the same and ran better or as well on the other engine's ecu they would've just used the ecu they already had on the shelf. NO BECAUSE OF DIFFERENCE IN MODEL AND EMISSION RULES if you have 4 different spec Corollas you would have 4 different ECU's but still the same type of engine.


Bottom line who care's. But I will not post if I do not know.
Maybe others should do the same

MATT.
END OF RANT.

[c2888]

Matts spanked his share of 4ages of all flavours and combos and then some. He's been there, tried it and he's telling it like it is, not like all the others out there starting pox rumors. A lot of the facts thrown around this board about Toyotas part interchangabilityness came straight from Matt, and via word of mouth ended up as fact on the internet. Just because someones "reputation" is low, or they aren't a volume poster, means you can write them off as another dumb shit with an opinion.

And like all other cars, they constantly change the mapping as they get feedback from dealership service centers about drivability.

Factory mapping is is done with emissions first priority, cos if it can't pass, it can't be sold.

Dan

ps MX83 efi tanks bolt straight into AE86s
pps thats a lie

[-GT-]

Matt, i appreciate your experience and opinions on this, and i wasn't trying to suggest you didn't have worthwhile input to contribute. I've re-read my post this evening and i can see it was more inflammatory than i intended, as not as clear as i thought that it wasn't all directed at you. I guess i need to be more aware of jumping on here in the middle of a shitty, stressed out day at work.

Where i was coming from was that i was suprised that the silvertop (or any engine for that matter) would perform better with a different factory ecu, let alone better than the engine the ecu came from. I would expect the ecu to be well enough matched to it's intended engine it would be close to optimal, and both you and dan indicated you'd expect the same.

My interest was perked by your experience and i'm completely open to learning something like this discovered by experimentation, but i try to be cautious with things i read on the internet until they're substantiated, and you didn't appear to back it up with anything other than 'seat of the pants', which we all know can be quite deceiving. I was merely trying to establish if this was a legitimate anomaly or something likely to spawn another internet rumour-come-gospel. I certainly wasn't writing you off as a dumbshit.

Now, i can get my hands on an ecu and map sensor, so ah, what are those 5 wires?

[sideshow]

what ecu do u want

u orig said silver ecu on black motor

so u want a silver one if u do then u need an air flow i guess

or are you goin to try find the proper ecu for the black and a map sensor too

if so then what do u mean by which 5 wires

do u have a silvertop loom

a manual silvertop loom is not close to a blacktop

an auto silvertop loom is close to a blacktop loom

i have repinned auto looms to suit manual ecus so its not hard to do manual looms to auto ecu

at end of day if your goin to spend close to 500 just put a microtech on it

save afew more bucks and then do it

if you want more power in a yr from now then atleast you will have the adjustable ecu

anyway let us know what ecu you want and ill try find one

i just repaired a gze ecu so now just need to test it