rice4life

iTrader: (3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">-h22a193:
-blundar:
Crome. I'm not throwing any codes and I'll be taking full advantage of version 1.1.0 here in a few days.
</TD></TR></TABLE>

i don't think he means if you throw any ecu codes, i think he means about writting a plug in script for crome that will rescale to gsxr tps voltage to match the honda tps voltage. that would be awsome, i would definitly go for a gsxr setup.

do you know which 750 itbs are the same size as the 1000. thanks,

RobbieG35

Looking good Kendall Does it run as well as Tony's hatch did?

DOHCsideracing

My understanding is the '03 - current GSX-R 750 TB's are the same sixe (42mm) as the GSX-R l000. I bought some '03's 750's off eBay, and they were in fact 42mm, if that helps.

I'm getting different answers as to what is the "minimum" TB's size should be for GS-R, I pretty sure it was TBone, or maybe Omniman, that recommended no smaller than 50mm for a l.8L, and definately 50mm+ for a 2.0L... Actually what he said was ~ you won't see many guys running 200+whp on 42mm ITB's...

Personally, I'm going to try and get some 45 'busa TB's are build up another set... when I get around to it... , and maybe get those bored out to 50mm, if that's possible.

blundar

I'm looking to write a patch much like the one Speedz is using to allow the use of the Suzuki TPS sensor instead of retrofitting the honda TPS. Could someone please measure the voltage output of the Suzuki TPS at idle and WOT please?
thanks,
-Dave

rice4life

iTrader: (3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blundar &raquo;</TD></TR><TR><TD CLASS="quote">I'm looking to write a patch much like the one Speedz is using to allow the use of the Suzuki TPS sensor instead of retrofitting the honda TPS. Could someone please measure the voltage output of the Suzuki TPS at idle and WOT please?
thanks,
-Dave</TD></TR></TABLE>

"Finally, lets get to the TPS. My buddy Tony indicated to me that the ghetto-funktified TPS mounting arrangement is indeed quite ugly, so I wired up the Suzuki TPS to my car when it still had the stock manifold on it and it idled fine. The voltage was a bit off, (1.25 volts at idle, 4.25 volts at WOT), but a bit of tuning and other screwing with the ECU can compensate for it."

i think he mentioned about gsxr tps votage in this part, but i'm not sure if he adjusted the tps to get those voltage readings or when it was in the original position.

- i thought Toda itbs for 1.8L are 43mm.

Speedz

hey blundar, i'll go measure mine this afternoon.. you might write the patch in a way that will allow the user to set his own voltage in the editor.. depending on what readings he's getting.. as i think they voltages may vary depending on how the TPS is adjusted.. also if someone were to use a different set of itbs.. like i will be using Ducati's with a weber TPS.. my voltages may be different from both honda and suzuki.

i wish someone could write one for the obd0 pr3 ecu

h22a193

does anyone know if busa itb's are wider then the others....I know the H22 is a bit wider then the current B frame Intake manifold flange. And im guessing that the tps is the same for them as is the gsxr?

How exactly do you it get it to work with the stock ecu, with vafc2?

blundar

it's going to be pretty flexible, I'm thinking.

I haven't decided on doing linear reshaping ( Y= mX + B ) or doing a LUT yet. Either way should work nicely, but the LUT would have the advantage of allowing nonlinear recurving, so you could do things like generate a linear output from a logarithmic TPS. Linear reshaping will take much less space in the ROM, LUT will be much more flexible.

.nate

blundar: My new motor is going in in a few weeks, with a set of gsxr1000's I'll help be a ginuea pig if you need...

JaeOne3345

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by black2001ITR &raquo;</TD></TR><TR><TD CLASS="quote">

1. how loud is this setup? I mean, does it attract a lot of attention? and does it dron into the cabin?</TD></TR></TABLE>

I dont run ITBs but i do run dual Mikuni sidedrafts (1 runner per cylinder as well), with my velocity stacks open and unfiltered. For me, its more a noise "nuisance" (for other people in the car) when i driving street light to street light. Yes you can "hear" the sound on the firewall area right in front of you. Once on the freeway, in high gear, just cruising, its just fine. But man on the street, induction is much louder then the exhaust.

rice4life

iTrader: (3)

that would be so nice if you get that working. i'm going to have to purchase crome pro once this is working.

teg92

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DOHCsideracing &raquo;</TD></TR><TR><TD CLASS="quote">I'm getting different answers as to what is the "minimum" TB's size should be for GS-R, I pretty sure it was TBone, or maybe Omniman, that recommended no smaller than 50mm for a l.8L, and definately 50mm+ for a 2.0L... Actually what he said was ~ you won't see many guys running 200+whp on 42mm ITB's... </TD></TR></TABLE>

Tbone is running 48mm and making over 240whp last time I checked. That makes you wonder if you really need 50+mm. You may be able to make more peak, but 48mm is definately not a bottleneck.

machine4321

i hear that ..its worth every penny im sure only a few more months to got ..

sorry to jack kendal but i am looking for a gsxr tps if any one has one around

blundar

so someone hurry the **** up and measure voltage of their gixxer TPS at idle + WOT!

Kendall

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HybridHatch88 &raquo;</TD></TR><TR><TD CLASS="quote">Looking good Kendall Does it run as well as Tony's hatch did?</TD></TR></TABLE>

Right now yes. I can't drive as well as he can, but my car also weighs over a hundred pounds less than his did.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blundar &raquo;</TD></TR><TR><TD CLASS="quote">I'm looking to write a patch much like the one Speedz is using to allow the use of the Suzuki TPS sensor instead of retrofitting the honda TPS. Could someone please measure the voltage output of the Suzuki TPS at idle and WOT please?</TD></TR></TABLE>

As mentioned in the original post: 1.25 at idle, 4.25 at wide open. This is without adjusting the TPS at all, but being that there needs to be some adjustment of the idle screw, it may be more like 1.3 or 1.35 at actual idle.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h22a193 &raquo;</TD></TR><TR><TD CLASS="quote">does anyone know if busa itb's are wider then the others....I know the H22 is a bit wider then the current B frame Intake manifold flange. And im guessing that the tps is the same for them as is the gsxr?

How exactly do you it get it to work with the stock ecu, with vafc2? </TD></TR></TABLE>

The Hayabusa setup is 44mm arguably 45 to some people. I do believe it's a wider setup than the GSXR 1000, but it's still not as wide as the cylinder spacing for a B series motor. I don't know if the TPS is exactly the same, but I know it will work when wired up in the same manner.

You don't have to do anything to get it to work with the stock ECU. Naturally it will run like *** without tuning, but it's pretty much a plug and play.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg92 &raquo;</TD></TR><TR><TD CLASS="quote">Tbone is running 48mm and making over 240whp last time I checked. That makes you wonder if you really need 50+mm. You may be able to make more peak, but 48mm is definately not a bottleneck.</TD></TR></TABLE>

I'm not planning on breaking 190 with this engine once it gets done. I think the 42's will work just fine.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by machine4321 &raquo;</TD></TR><TR><TD CLASS="quote">sorry to jack kendal but i am looking for a gsxr tps if any one has one around </TD></TR></TABLE>

I think SkRiBLaH has one laying around somewhere. In fact I might have a spare, but I'll have to look real hard because I think it's in one of the many random shoeboxes I have laying around my house.

Speedz

Dave i'll go out and measure mine here in a few.

03+ gsxr 750 itbs may be 42mm BUT.. they are paired up like the CBR ITBs.

for a short period in 2000, suzuki had 42mm 750 itbs.. they realized they were a bit big and went back to 40mm..

busa itbs (2004) are 42mm on the small end.. and 46mm at the plate.. here's some pics showing how i measured.
i dont care for the busa's because of the small end and how the runner will mate up with it.. .. but thats my opinion




Modified by Speedz at 12:54 AM 2/17/2005

Speedz

dave.. measured.. i have mine set so WOT is at 4.5v and closed is at 1.41v

Kendall

Speedz, thank you for the correction regarding the throttle body years and sizes.

CRVTEC0WNZJ00

What do you think about these ITB's on a 2.0L 11:0:1 c/r CRVTEC? Too small maybe?

Speedz

my personal opinion is i'd bore out some Busa itbs to 46mm (to match the plate) and run those on a 2 liter.. but for the diy guys, that'd be kind of hard without machine shop.

JDogg

i need something in the bigger than 50mm range.. does anyone know of any motorcycle itbs that are that big?

Phoenix1

iTrader: (1)

Kendall: Clean setup, clean engine bay. Thumbs up! Keep us posted...

92TypeR

Both Busa sets I bought are 46mm at the plate.

If someone can get a good baseline .BIN for a 1.8L ITB using the new Crome ITB tools, please post it up!

gldndrgn14

iTrader: (1)

you could also go with neptune. i have asked them about this problem and they said you can adjust the readings of the ecu for the tps.

rice4life

iTrader: (3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">
If someone can get a good baseline .BIN for a 1.8L ITB using the new Crome ITB tools, please post it up!</TD></TR></TABLE>

i want it too.