What do you do about ECU in a type R swap in a automatic 97int ls?

 

EDIT: Okay, I didn't understand this when I read it the first time... I thought you were saying you wanted to use an ITR ECU on your LS motor... Anyways how come you can't just swap to manual, there are lots and lots of different trannies you could use... '94-2001 Y80/S80 GSR, ITR, '99-2000 Si (S4C), etc... The auto trannies gears are super long as you may have noticed... I seriously don't think you would feel any power gain what so ever... Ever put a manual LS tranny on even a GSR motor?? It feels like **** because it wasn't meant to rev to only 6,800rpm where as with the GSR you are limited at 8,200rpm... We had a straight MANUAL LS tranny on my friend's 489whp GSR motor and it feels like **** even with boost... The 4 speed auto LS tranny is even worse... I hope I'm not coming across like a total ******* but this is a really dumb thing to do... Just my $0.02... Peace


Modified by Kataku2K3 at 10:44 AM 6/20/2003

 

sounds like a lot more trouble than it's worth just wait until you can do a manual swap or something

 

when you do swap might as well do an auto to manual conversion

 

thanks for the replies but a manual conversion is out of the question completly. so how do i make this thing work

 

you can get a jdm b16 automatic vtec ecu and use that...you can also have it chipped with an ITR fuel map..add the vtec wires (a little diff than manual i think)


or have your LS ecu chipped with a mugen program etc ...i knew a guy that did it with his 92 auto LS...of course got to add the vtec wires

 

I hear the stock market is doing somewhat better these days. So you might want to take the money you would spend on the B18C5 and invest it in a good mutual fund instead. Because an automatic B18C5 swap is pretty pointless.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StorminMatt &raquo;</TD></TR><TR><TD CLASS="quote">I hear the stock market is doing somewhat better these days. So you might want to take the money you would spend on the B18C5 and invest it in a good mutual fund instead. Because an automatic B18C5 swap is pretty pointless.</TD></TR></TABLE>

I would not say pointless, if your making it an all drag car then its not, but if its gonna see the street then I would say it is. There are some reasons why you would want an automatic over a manual, not saying I would ever do it. But if you look around some people do it to an all drag car that has turbo, cause the turbo spools faster. I think they did it in sports compact or super street. I'm not saying its worth it but there are reasons.

 

C5 and automatic... cant see it... its... heracy

 

i thank the guy with the only actual usable answer. to the rest of you

 

to you too..... You are asking people who would give there first born just to get there hands on an ITR motor to give you tips on how to make it a dog. You could try listening and explaining yourself better, inorder for people to understand why you would want to this to a Type-R engine. I personally can't figure out why you want an automatic Type-R. That's like getting an automatic corvette, or ferrari.

I don't mean to be such a *****, but you came off pretty harsh on a lot of people...... try running some searches before you start picking fights with people....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote"> how do you run a type R motor with an automatic ? </TD></TR></TABLE>

You don't.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Type R Bob &raquo;</TD></TR><TR><TD CLASS="quote">

You don't.</TD></TR></TABLE>

You can, and I listed the reasons why you would above. Anyways I will go into a litttle more detail of what you need to make it an automatic. Here is the list

Automatic trans
Automatic flywheel and bolts
Automatic ecu
Automatic shifter
Torque converter
Motor mounts intended for an automatic

There will be other things I'm sure, but that pretty much covers the big things.

 

pick up a jdm gsr auto tranny...i think they cost about 200-250...a little closer gearing than your original LS...

 

what you SHOULD have done it take the money for just the B18C5 engine, get a B18C1 full swap and throw it in, manual tranny and all. MUCH better, IMO...
It's honestly pretty pointless to do what you want; you're savin money by not swappin to a manual tranny, but you're wasting more money on a high $$$ motor that's not gonna give you much of a performance gain.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">

You can, and I listed the reasons why you would above. Anyways I will go into a litttle more detail of what you need to make it an automatic. Here is the list

Automatic trans
Automatic flywheel and bolts
Automatic ecu
Automatic shifter
Torque converter
Motor mounts intended for an automatic

There will be other things I'm sure, but that pretty much covers the big things.</TD></TR></TABLE>

I didn't say "can't," I said "don't."

 

Ok, but still, its his money and who knows what his plans are for the car. We might both think hes crazy for putting making an automatic in his car but we don't know why he wants to.

 

this topic just upsets me. i agree with SpyderZEX. besides, i dont think an automatic's tall gearing (read: 4 gears) would be able to stay in the b18c5's powerband. ****, in a GSR tranny, you have trouble staying in the [ideal] powerband (after 5800rpms) after the 1-2 shift. i just dont think the car would be fast.. not because of the engine, but because the transmission cant do what the engine was made for. its one thing to have an automatic v8, in which you make power throughout the powerband, especially at low rpms.. then having an automatic is fine. but in an engine like a b-series where you only are going to be fast if you run your engine between 6-8000ish rpms, i dont think you should have an automatic. its not even a matter of liking or disliking automatic transmissions here, it's just a matter that this setup isnt great, because of the engine and its powerband, and the automatic transmissions' capabilities.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SpyderZEX &raquo;</TD></TR><TR><TD CLASS="quote"> to you too..... You are asking people who would give there first born just to get there hands on an ITR motor to give you tips on how to make it a dog. You could try listening and explaining yourself better, inorder for people to understand why you would want to this to a Type-R engine. I personally can't figure out why you want an automatic Type-R. That's like getting a automatic corvette, or ferrari
I don't mean to be such a *****, but you came off pretty harsh on a lot of people...... try running some searches before you start picking fights with people.... </TD></TR></TABLE>

That's same thing I told my lil brother when he got his automatic celica GTS and now he regret getting it in the first place: his reason " it's pretty slow on takeoffs" well duh!
The only place I could see a automatic in a B18C5 would be in a full drag car. just my .02

 

I would really recommend as high a stall speed torque convertor as you can find, even for street use. With the fewer gears and poor low speed torque, as many revs before moving the car will help it not seem too sluggish.

For actual performance with an auto, a turbo on an LS would be much faster, cheaper, and way easier.

When Ford built the SHO Taurus, they had to build a larger 3.2 to replace the 3.0 when adding an automatic. They needed a motor with more low end torque and a wider power band. I remember seeing something on the NSX with auto and how much slower it was, even the later 3.2.

Have any of you ever picked up a torque convertor full of fluid? It's really heavy, more so than most flywheels. This will also slow down how quick the motor can rev.

Years ago when I was a meer little kid, Hot Rod tested a L88 Vette. GM did not want the general public to know how fast the special race motor was so they rated it lower than the normal 7.0L, 425hp versus 435, all gross rating. The L88 made over 425 net HP, about 560 with headers and retuned carb. So GM let them test one but with an auto and 3.08 gears instead of close ratio 4 sp and 4.11 gears as most were sold. It was no faster than a regular 435hp but had a trap speed up about 15mph. So even a giant torque monster V8 lost a lot to the auto.

I guess my point is that the auto on the ITR motor is possible but not a great idea. Kind of like the "cars" on Monster Garage. Yeah they work, but I really don't want to drive one every day.

 

the only way an automatic would be faster than a manual in any car, would be in drag cars, as people have already said, that have sub-10 second quarter mile times. on cars that fast, its beneficial to have an automatic because the auto can change gears faster than someone with a manual. but i doubt this guy is planning an all out drag monster with a b18c5. my recommendation for this guy, if you have an auto LS, is to spend the money on a fully built ls-turbo, which would most likely still be cheaper than buying a b18c5, and you would also be MUCH faster. the powerband created with a turbo would be much more suited for an automatic than a b18c5 with an automatic.

 

the gear ratios of the LS automatic tranny would require major re-tuning of the R motor. you would fall in and out of VTEC constantly using stock settings. something to bear in mind.

 

Well the only way for the manual to be out of the question would be for you to lose your left leg in an accident. If that is not the care and you just don't like shifting gears than just get a minivan.