ITB's and turbo
Honda-Tech Member
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From: South Florida
Re: (Tony the Tiger)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tony the Tiger »</TD></TR><TR><TD CLASS="quote">The ones I have are 51mm at the throttles 
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would busa bodies cause a restriction? I now have a JG intake and a sc61 on a fully built motor. looking for 450-500+
</TD></TR></TABLE>would busa bodies cause a restriction? I now have a JG intake and a sc61 on a fully built motor. looking for 450-500+
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From: ArounD
Re: (Lonnieboosted)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lonnieboosted »</TD></TR><TR><TD CLASS="quote">
I think his name was Sakura, so yes it can be done.</TD></TR></TABLE> Sakura now has come out with this own standalone computer. Was introduced to the ems at the pan ams in jersey
I think his name was Sakura, so yes it can be done.</TD></TR></TABLE> Sakura now has come out with this own standalone computer. Was introduced to the ems at the pan ams in jersey
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From: Toronto, ON, Canada
Re: (quicksilver1689)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quicksilver1689 »</TD></TR><TR><TD CLASS="quote">you guys like the full race manifold it looks like that manifold that was bein built for tony, individual velocity stacks built inside a large round plenum. Pretty expensive tho</TD></TR></TABLE>
I personally like the Full Race unit for traditional single TB intake manifolds... That would be my choice if I were shopping for an intake manifold, boosted or all motor
I personally like the Full Race unit for traditional single TB intake manifolds... That would be my choice if I were shopping for an intake manifold, boosted or all motor
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From: Toronto, ON, Canada
Re: (Boostage)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boostage »</TD></TR><TR><TD CLASS="quote">
would busa bodies cause a restriction? I now have a JG intake and a sc61 on a fully built motor. looking for 450-500+</TD></TR></TABLE>
Not too sure if the Hayabusa ITB's would be large enough... I'd go with largest throttles you could find at a reasonable price. It never hurts to try though because I doubt the Hayabusa ITB's would flow less than say an OEM GSR or ITR intake manifold.
would busa bodies cause a restriction? I now have a JG intake and a sc61 on a fully built motor. looking for 450-500+</TD></TR></TABLE>
Not too sure if the Hayabusa ITB's would be large enough... I'd go with largest throttles you could find at a reasonable price. It never hurts to try though because I doubt the Hayabusa ITB's would flow less than say an OEM GSR or ITR intake manifold.
Joined: May 2006
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From: nj
Re: ITB's and turbo (Tony the Tiger)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tony the Tiger »</TD></TR><TR><TD CLASS="quote">
For ultimate power, I'd rather just up the boost or swap to a larger turbo. No need to deal with all this fuss for peak numbers.
Only if the car is an avid drag racer and sees no street time which apparently has no concern for midrange and throttle/engine response. I don't see any Skylines such as the Mines or a few HKS', delete their ITB's especially when the car sees a roadcourse </TD></TR></TABLE>
true ..
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ckjeepin »</TD></TR><TR><TD CLASS="quote">You are an idiot.</TD></TR></TABLE>
wow,,nice...Dont just say im an idiot ,,explain why im an idiot.
atleast tony the tiger explained his thoughts,,smart man,,,,,you on the other hand are the real idiot 
For ultimate power, I'd rather just up the boost or swap to a larger turbo. No need to deal with all this fuss for peak numbers.
Only if the car is an avid drag racer and sees no street time which apparently has no concern for midrange and throttle/engine response. I don't see any Skylines such as the Mines or a few HKS', delete their ITB's especially when the car sees a roadcourse
</TD></TR></TABLE>true ..
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ckjeepin »</TD></TR><TR><TD CLASS="quote">You are an idiot.</TD></TR></TABLE>
wow,,nice...Dont just say im an idiot ,,explain why im an idiot.
atleast tony the tiger explained his thoughts,,smart man,,,,,you on the other hand are the real idiot
Re: (BrokeAssWhiteboy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BrokeAssWhiteboy »</TD></TR><TR><TD CLASS="quote">the advantage of the individual throttle body is that each cylinder gets an equal amount of air because the pressure will build before the throttle plate.
when the pressure builds after the throttle plate then it is up to the cyinder to pull in the air from a plenum that may not be that great of a design for equal cylinder feeding.</TD></TR></TABLE>
When the throttle is open there is equal pressure before and after the throttle plate. The only time pressure is going to build up before is between shifts when the throttle is closed. Each cylinder getting equal air would have more to do with where the inlet to the plenum is and the shape of it.
when the pressure builds after the throttle plate then it is up to the cyinder to pull in the air from a plenum that may not be that great of a design for equal cylinder feeding.</TD></TR></TABLE>
When the throttle is open there is equal pressure before and after the throttle plate. The only time pressure is going to build up before is between shifts when the throttle is closed. Each cylinder getting equal air would have more to do with where the inlet to the plenum is and the shape of it.
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From: AL
If you have ever driven an early Porsche, Ferrari, etc or a late model M3, M5, M6 you will understand why ITBs are the only way to fly. Throttle response is incredible. It makes the car feel and perform like a true sports car should.
Porsche used ITBs on many a boosted race car. The 934, 935, 917, 956, 962, etc. All of these cars were running huge turbos and ITBs. one of the benefits is drivability. Mid-range torque and part throttle performance were excellent. It is a must on a road course or even on the street.
A 700Hp street Honda is usless. A 300Hp civic with better throttle response and drivability will out run it on a road course.
Another benefit of the ITBs is the ability to run huge cams 250-280@.050 and have the car idle smooth and have excellent part throttle performance. Look at the VW/Porsche crowd.
I do find it ironic that Porsche chose to use twin Plenum with a single throttle body for each plenum on the Carrera GT. Its throttle response is incredible though. Much of that can be attrributed to other measures, mutliplate clutch, special transmission, titanium rods, etc.
Porsche used ITBs on many a boosted race car. The 934, 935, 917, 956, 962, etc. All of these cars were running huge turbos and ITBs. one of the benefits is drivability. Mid-range torque and part throttle performance were excellent. It is a must on a road course or even on the street.
A 700Hp street Honda is usless. A 300Hp civic with better throttle response and drivability will out run it on a road course.
Another benefit of the ITBs is the ability to run huge cams 250-280@.050 and have the car idle smooth and have excellent part throttle performance. Look at the VW/Porsche crowd.
I do find it ironic that Porsche chose to use twin Plenum with a single throttle body for each plenum on the Carrera GT. Its throttle response is incredible though. Much of that can be attrributed to other measures, mutliplate clutch, special transmission, titanium rods, etc.
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Re: ITB's and turbo (njcrxsi)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by njcrxsi »</TD></TR><TR><TD CLASS="quote">
wow,,nice...Dont just say im an idiot ,,explain why im an idiot. atleast tony the tiger explained his thoughts,,smart man,,,,,you on the other hand are the real idiot </TD></TR></TABLE>
I dont think he was refering to you I think he was refering to someone else that he was quoting.
wow,,nice...Dont just say im an idiot ,,explain why im an idiot.
atleast tony the tiger explained his thoughts,,smart man,,,,,you on the other hand are the real idiot </TD></TR></TABLE>I dont think he was refering to you I think he was refering to someone else that he was quoting.
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From: Chicago, IL, USA
Re: (tegedrex)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegedrex »</TD></TR><TR><TD CLASS="quote"> The only thing that I see that I think is helping out this setup is by putting the TB/inlet neck right inbetween runner 2 & 3.</TD></TR></TABLE>
That's actually a BAD idea. I have a fully built stroker MR2 Turbo. From the factory, they come with center feed intake manifolds because of space constrictions. The sidemount intercooler is on the pass. side, and there's no room to make a sidefeed intake manifold on the passenger side as the engine sits up against the strut tower there. Toyota made the intake manifold a center feed to accomate this.
Why is this bad?
Air is going to go where there is the least resistance. If air has a choice of making 2 turns or 3 turns, it will naturally flow 2 turns. If you look at airflow through a centerfeed IM, air going into cylinders 2 and 3 only has to make one 90 degree turn downward. For air to get into cylinders 1 and 4 air first has to make one 90 degree turn sideways, then another 90 degree turn downwards.
What this causes is an uneven distribution of air. MR2 OEM intake manifolds have been flowbenched and shown up to 13% more air goes through the #2 and #3 runners. This is considered to be one of the primary reasons that when MR2's blow ringlands, it's 90% cylinders #2 and #3.. they naturally run leaner, because they see 13% more air. On a stock setup, it would never matter... but when you're running double th horsepower and airflow, it makes a BIG difference.
Sidefeed manioflds will always be more efficient at distributing air evenly.
The manifold in question is beautiful... I'm sure the guy has plenty enough money that he's running an AEM or standalone, where he could adjust individual cylinder fuel trim to compensate for the middle two being leaner, but for the average joe, stick with a sidefeed.
That's actually a BAD idea. I have a fully built stroker MR2 Turbo. From the factory, they come with center feed intake manifolds because of space constrictions. The sidemount intercooler is on the pass. side, and there's no room to make a sidefeed intake manifold on the passenger side as the engine sits up against the strut tower there. Toyota made the intake manifold a center feed to accomate this.
Why is this bad?
Air is going to go where there is the least resistance. If air has a choice of making 2 turns or 3 turns, it will naturally flow 2 turns. If you look at airflow through a centerfeed IM, air going into cylinders 2 and 3 only has to make one 90 degree turn downward. For air to get into cylinders 1 and 4 air first has to make one 90 degree turn sideways, then another 90 degree turn downwards.
What this causes is an uneven distribution of air. MR2 OEM intake manifolds have been flowbenched and shown up to 13% more air goes through the #2 and #3 runners. This is considered to be one of the primary reasons that when MR2's blow ringlands, it's 90% cylinders #2 and #3.. they naturally run leaner, because they see 13% more air. On a stock setup, it would never matter... but when you're running double th horsepower and airflow, it makes a BIG difference.
Sidefeed manioflds will always be more efficient at distributing air evenly.
The manifold in question is beautiful... I'm sure the guy has plenty enough money that he's running an AEM or standalone, where he could adjust individual cylinder fuel trim to compensate for the middle two being leaner, but for the average joe, stick with a sidefeed.
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From: Sheridan, WY, 82801
Re: (weiRtech)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by weiRtech »</TD></TR><TR><TD CLASS="quote">why not go with throttle barrels? i'd love to build a set some day.</TD></TR></TABLE>
Are those the things that are like an intake manifold with a built in throttle body? Almost like a shaft ran through the runners and has ports in it? So at WOT throttle looking down the runners its just wide open? I dont recall where I saw that, but if I remember correctly it made rediculous power (it was on a turbo motor of some sort, I want to say it was two busa motors linked together to make like a 2.3l v8 that wraps to like 15k)
Are those the things that are like an intake manifold with a built in throttle body? Almost like a shaft ran through the runners and has ports in it? So at WOT throttle looking down the runners its just wide open? I dont recall where I saw that, but if I remember correctly it made rediculous power (it was on a turbo motor of some sort, I want to say it was two busa motors linked together to make like a 2.3l v8 that wraps to like 15k)
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From: nj
Re: (boosted94cx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turblow* »</TD></TR><TR><TD CLASS="quote">
I dont think he was refering to you I think he was refering to someone else that he was quoting.</TD></TR></TABLE>
You're right he was talking to boosted94cx....i figured he meant me since it was right under my post,,,sorry
I dont think he was refering to you I think he was refering to someone else that he was quoting.</TD></TR></TABLE>
You're right he was talking to boosted94cx....i figured he meant me since it was right under my post,,,sorry
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