Another GSXR 1000 ITB Thread
After seeing the threads here on Honda-Tech, and reading the information on homemadeturbo, I decided that I too was going to put together a set of ITB's using the GSXR 1000 platform. I decided on the Suzuki setup, rather than a Honda setup, due to several factors including the fact that they are able to be completely separated from each other in order to make custom runners. As it turns out, my beautiful sexy B series engine was sold to Chad and all of my workmanship was passed on to my good friend, and soon to be business partner, Tony.
After quite a bit of convincing, I managed to instill in Tony's mind that an all motor Honda is better than a turbo Nissan and that he should finish the few remaining steps in this ITB setup. We approached this exactly as homemadeturbo had said, with the only exception being the IACV which was left plugged in, but zip tied out of the way. Our plan was to take the setup as it was, and do what improvements we could to improve upon the system while maintaining the simplicity associated with it, including a mounting plate with coolant lines to the IACV, a vacuum canister, an aluminum TPS mounting plate, etc. The vacuum canister was built this past weekend, and we're shooting for the IACV mounting plate this weekend and the TPS mounting plate next week some time if we don't get delayed.
We don't yet have dyno charts yet (looking to have it tuned here in a couple of weeks) but power with this thing is unreal. This car is running with shitty tires, full interior, stock cams, a stock exhaust manifold, and a stock P30 ECU from an automatic equipped car, and is running right along side a GSR swapped Civic Si with a Drag turbo kit running 8 psi, skunk2 manifold, VAFC, DSM injectors, etc. At one point it actually barked 4th gear. From a granny launch in first, just hitting VTEC is enough to completely lose traction. With good tires, cams, and a good header, it will be a monster.
I should also note that Tony and I are starting a business together and custom ITB setups will be one of the products offered. We're looking into D series, H series, and K series setups, and will be able to put them together for customers in the near future. The business isn't officially opened yet and doesn't yet have a name, but it will be open for business sometime in late may at which time we will contact Honda-Tech about proper sponsorship. Pricing still isn't set, but we're looking to have a complete setup with several notable improvements over the original design for less than $1000 for a B series setup. One thing we are starting to focus on is the runners, and the fact that the harsh bends can be restrictive to airflow. We're working on a runner design that will eliminate as much airflow restriction as possible while keeping the throttle bodies at their original spacing.
I don't have pics of the vacuum canister yet as we're having difficulties with the digital camera, but here are some pics taken the night after setup was installed. This is using our initial runner design based on the homemadeturbo setup, just ported to keep the angles as smooth as possible.












Let me know what you think, everyone.
After quite a bit of convincing, I managed to instill in Tony's mind that an all motor Honda is better than a turbo Nissan and that he should finish the few remaining steps in this ITB setup. We approached this exactly as homemadeturbo had said, with the only exception being the IACV which was left plugged in, but zip tied out of the way. Our plan was to take the setup as it was, and do what improvements we could to improve upon the system while maintaining the simplicity associated with it, including a mounting plate with coolant lines to the IACV, a vacuum canister, an aluminum TPS mounting plate, etc. The vacuum canister was built this past weekend, and we're shooting for the IACV mounting plate this weekend and the TPS mounting plate next week some time if we don't get delayed.
We don't yet have dyno charts yet (looking to have it tuned here in a couple of weeks) but power with this thing is unreal. This car is running with shitty tires, full interior, stock cams, a stock exhaust manifold, and a stock P30 ECU from an automatic equipped car, and is running right along side a GSR swapped Civic Si with a Drag turbo kit running 8 psi, skunk2 manifold, VAFC, DSM injectors, etc. At one point it actually barked 4th gear. From a granny launch in first, just hitting VTEC is enough to completely lose traction. With good tires, cams, and a good header, it will be a monster.
I should also note that Tony and I are starting a business together and custom ITB setups will be one of the products offered. We're looking into D series, H series, and K series setups, and will be able to put them together for customers in the near future. The business isn't officially opened yet and doesn't yet have a name, but it will be open for business sometime in late may at which time we will contact Honda-Tech about proper sponsorship. Pricing still isn't set, but we're looking to have a complete setup with several notable improvements over the original design for less than $1000 for a B series setup. One thing we are starting to focus on is the runners, and the fact that the harsh bends can be restrictive to airflow. We're working on a runner design that will eliminate as much airflow restriction as possible while keeping the throttle bodies at their original spacing.
I don't have pics of the vacuum canister yet as we're having difficulties with the digital camera, but here are some pics taken the night after setup was installed. This is using our initial runner design based on the homemadeturbo setup, just ported to keep the angles as smooth as possible.












Let me know what you think, everyone.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WuRKD b16 »</TD></TR><TR><TD CLASS="quote">damn sounds nice...i was wonder if this set up would be ok for daily driving?</TD></TR></TABLE>
It's on a daily driven car and it's just fine. We had to set the idle to about 1500 rpms to really get it to act right due to the constant temperature changes present in western NC this time of year: sometimes up in the 70's during the day and sometimes down in the 30's at night.
It's on a daily driven car and it's just fine. We had to set the idle to about 1500 rpms to really get it to act right due to the constant temperature changes present in western NC this time of year: sometimes up in the 70's during the day and sometimes down in the 30's at night.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alld16a »</TD></TR><TR><TD CLASS="quote">Any map sensor problems</TD></TR></TABLE>
None so far, and we've beaten on it pretty hard since the install. Other than temperature associated idle issues it runs great, although a bit rich.
None so far, and we've beaten on it pretty hard since the install. Other than temperature associated idle issues it runs great, although a bit rich.
very sweet kendall..hmm seems like theres enough homemade ITBS posts maybe i wont even bother w. mine..hehe..
hey see if u can discribe the vtec sounds when it kicks in..cuase i sure as hell cant..
yeah mine is running rich down low too..fpr and vafc should be a good fix..
hey see if u can discribe the vtec sounds when it kicks in..cuase i sure as hell cant..
yeah mine is running rich down low too..fpr and vafc should be a good fix..
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6h8k »</TD></TR><TR><TD CLASS="quote">very sweet kendall..hmm seems like theres enough homemade ITBS posts maybe i wont even bother w. mine..hehe..</TD></TR></TABLE>
With the exception being Fastone, you have about the cleanest setup I've seen.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6h8k »</TD></TR><TR><TD CLASS="quote">hey see if u can discribe the vtec sounds when it kicks in..cuase i sure as hell cant..
</TD></TR></TABLE>
I've been trying to think of a way to describe it as well. All I know is: It sounds better than any turbo.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6h8k »</TD></TR><TR><TD CLASS="quote">yeah mine is running rich down low too..fpr and vafc should be a good fix..
</TD></TR></TABLE>
We'll actually be going with a tunable ECU in the next couple of weeks. Right now, I'm trying to find a good deal on a used header and some used CTR cams.
With the exception being Fastone, you have about the cleanest setup I've seen.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6h8k »</TD></TR><TR><TD CLASS="quote">hey see if u can discribe the vtec sounds when it kicks in..cuase i sure as hell cant..
</TD></TR></TABLE>I've been trying to think of a way to describe it as well. All I know is: It sounds better than any turbo.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6h8k »</TD></TR><TR><TD CLASS="quote">yeah mine is running rich down low too..fpr and vafc should be a good fix..
</TD></TR></TABLE>We'll actually be going with a tunable ECU in the next couple of weeks. Right now, I'm trying to find a good deal on a used header and some used CTR cams.
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I had to redo my TPS and i am using the GSR Vacuum Box as my equalization canister for the MAP sensor.......im also gonna make a vacuum log.....it will be back up and running again today.....pics and videos soon.
not to jack but since there is a lot of you guys with the 1000 itb i just measured my bigest part of the itb and it came to 48mm..i though they were only 45....
and for you guys with stacks what inner dia are they ...and any fitment problems
thanks and dont mean to jack
and for you guys with stacks what inner dia are they ...and any fitment problems
thanks and dont mean to jack
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ej6andslow »</TD></TR><TR><TD CLASS="quote">is this the car Joseph was telling me about?
did you get the non-linear map sensor yet?</TD></TR></TABLE>
Yeah, Joseph will be taking care of the engine management, and we're still running the stock MAP sensor as of this moment. Right now, we've got a few other projects going on and we need to get them squared away.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ej6andslow »</TD></TR><TR><TD CLASS="quote">i'm reading your first post and i'm thinking you're a different person...
but, what part of Western NC are you from?</TD></TR></TABLE>
The car belongs to my good friend Tony, and the ITB setup is mine (until he pays me for it, or until we get the business opened). We're in Hendersonville, but frequently venture up to Asheville.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by machine4321 »</TD></TR><TR><TD CLASS="quote">not to jack but since there is a lot of you guys with the 1000 itb i just measured my bigest part of the itb and it came to 48mm..i though they were only 45....
and for you guys with stacks what inner dia are they ...and any fitment problems
thanks and dont mean to jack </TD></TR></TABLE>
I'm not sure exactly what ours measure, I ported them and never measured them. The velocity stacks on ours are 44mm inner diameter and there were no fitment issues. We're currently looking for a larger set.
did you get the non-linear map sensor yet?</TD></TR></TABLE>
Yeah, Joseph will be taking care of the engine management, and we're still running the stock MAP sensor as of this moment. Right now, we've got a few other projects going on and we need to get them squared away.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ej6andslow »</TD></TR><TR><TD CLASS="quote">i'm reading your first post and i'm thinking you're a different person...
but, what part of Western NC are you from?</TD></TR></TABLE>
The car belongs to my good friend Tony, and the ITB setup is mine (until he pays me for it, or until we get the business opened). We're in Hendersonville, but frequently venture up to Asheville.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by machine4321 »</TD></TR><TR><TD CLASS="quote">not to jack but since there is a lot of you guys with the 1000 itb i just measured my bigest part of the itb and it came to 48mm..i though they were only 45....
and for you guys with stacks what inner dia are they ...and any fitment problems
thanks and dont mean to jack </TD></TR></TABLE>
I'm not sure exactly what ours measure, I ported them and never measured them. The velocity stacks on ours are 44mm inner diameter and there were no fitment issues. We're currently looking for a larger set.
very nice itb setup man.
let me know when you are going to start selling them and when you get it on the dyno!
definately looks like a good mod for my lil b16b!
let me know when you are going to start selling them and when you get it on the dyno!
definately looks like a good mod for my lil b16b!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civic-rmod »</TD></TR><TR><TD CLASS="quote">very nice itb setup man.
let me know when you are going to start selling them and when you get it on the dyno!
definately looks like a good mod for my lil b16b!
</TD></TR></TABLE>
Sure thing.
let me know when you are going to start selling them and when you get it on the dyno!
definately looks like a good mod for my lil b16b!
</TD></TR></TABLE>Sure thing.
woah - sweet.
I am just getting into civic mods and selling my bike in a few weeks (87 fz) and this is an amazing combo of both worlds!
Have you ever cosidered modding the exhaust to use the Yamaha FZR1000 EXUP system? Essentially this is a valve that switches the exhaust header from 4-2-1 to 4-1. Low rpm you get 4-2-1 for better low end, and then once you hit 5,000 rpm you hit flip to 4-1 for better top end.
John.
I am just getting into civic mods and selling my bike in a few weeks (87 fz) and this is an amazing combo of both worlds!
Have you ever cosidered modding the exhaust to use the Yamaha FZR1000 EXUP system? Essentially this is a valve that switches the exhaust header from 4-2-1 to 4-1. Low rpm you get 4-2-1 for better low end, and then once you hit 5,000 rpm you hit flip to 4-1 for better top end.
John.
Good, Bad…I'm the one with the gun
Joined: Jul 2002
Posts: 5,241
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From: Trapped in time, Surrounded by evil, Low on gas
Honda cycles have a similar set-up, as far as i know it is titanium, and most likely too expencive to pick up by a DYI'er. also, i think the diameter of the valves are not big enough for the automotive engines. these are speculations, and the idea is rather interesting nonetheless.
stan
stan
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jmiles242 »</TD></TR><TR><TD CLASS="quote">Have you ever cosidered modding the exhaust to use the Yamaha FZR1000 EXUP system? Essentially this is a valve that switches the exhaust header from 4-2-1 to 4-1. Low rpm you get 4-2-1 for better low end, and then once you hit 5,000 rpm you hit flip to 4-1 for better top end.</TD></TR></TABLE>
It's an interesting idea, but I think we're going to concentrate on just getting a decent header right now.
It's an interesting idea, but I think we're going to concentrate on just getting a decent header right now.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DocIowa »</TD></TR><TR><TD CLASS="quote">I see so many of these, is no-one worried about foreign object ingestion? What about some kind of a filter? Or is this not an issue?</TD></TR></TABLE>
So far it hasn't been an issue, and the car is daily driven. The way I see it is: a filter only obstructs airflow.
So far it hasn't been an issue, and the car is daily driven. The way I see it is: a filter only obstructs airflow.
i would say PUT A FILTER
id hate to suck up a small rock flung up through there....
probably wont happen, but at least throw some panty hose over it =P
id hate to suck up a small rock flung up through there....
probably wont happen, but at least throw some panty hose over it =P



