ITBs and the S2000
Joined: Sep 2006
Posts: 4,762
Likes: 3
From: San Diego
Originally Posted by wildcardtrd,Jan 25 2007, 06:27 AM
Your major ITB companies are TWM, Toda, Tracy Sports, Jenvey, and Hayward. TWM's are unique in that they manifold is all one piece, and the throttle plates rotate about a vertical axis, with the throttle linkage being attached under the manifold. Since TWM's are all one piece, should something break, you'd have to replace the entire manifold. Jenvey and Hayward are virtually identical. They are comprised of seperate components...A base manifold that attaches to the head, followed by 4 seperate throttle bodies, of which you can order any size from 45mm to 52mm. The throttles in these kits rotate about a horizontal axis, and are connected in series, each individually adjustable, with the main throttle linkage independant of location...i.e. you can locate it anywhere you want. The Jenvey and Hayward kits allow much, much more fine tuning via allen set screws on each throttle body, allowing you to sync the plates much easier, and set your hard idle easier. The Toda and Tracy Sports kits are very nice indeed, and similar in construction to the Jenvey and Hayward kits, in that each piece is seperate. All ITB kits allow you to run whatever size air horns you'd like, but Jenvey and Hayward offer more choices than the others. If I could have gotten any kit on the market, price no issue, I'd have gotten Toda's....but I couldn't cough up the $3600 for the kit when the group buy was out. The Jenvey's I have are a very, very nice piece, and I am very happy with my purchase.
On a special note, some of you probably read Sport Compact Car magazine. In the January issue, they pimp the Fuji ITB's in their product reviews for the S2000. DO NOT BUY FROM FUJI. They ripped Roger (VolkGT-N) off BIG TIME, left him with no manifold, no injectors, nothing, just a block with 4 red rags stuffed in the intake ports and a big #### you for his time.
On a special note, some of you probably read Sport Compact Car magazine. In the January issue, they pimp the Fuji ITB's in their product reviews for the S2000. DO NOT BUY FROM FUJI. They ripped Roger (VolkGT-N) off BIG TIME, left him with no manifold, no injectors, nothing, just a block with 4 red rags stuffed in the intake ports and a big #### you for his time.
sorry to hear that VOLK
Registered User
Joined: Mar 2004
Posts: 4,882
Likes: 0
From: Where dreamers dream!
Originally Posted by wildcardtrd,Jan 25 2007, 06:27 AM
If I could have gotten any kit on the market, price no issue, I'd have gotten Toda's....but I couldn't cough up the $3600 for the kit when the group buy was out. T
Former Moderator
Joined: Apr 2004
Posts: 20,371
Likes: 1
From: never never land
Originally Posted by CynCrvrAP1,Jan 25 2007, 03:09 PM
crazy as it sounds i can get these itbs for 2800..
Registered User
Joined: Nov 2005
Posts: 884
Likes: 0
From: Nashville,Tn
Wel most everything said has been true so far. I Run the 52MM ITM ITBS. They are a bitch touchy at first opening and its hard to tune down very low but it can be done, we did it:. Powerband down very low with the 52mm thortlles is a bit lower than most but the top end is where the car just sings. A increase in top end power is really needed with cams so alot of your power increase in in the midrange. I am selling my set that is currently for sale in the for sale section. You have to make a custom cooling line that you can mount you coolant temp sensor on so you can set up your warm up enrichment. Overall a great setup if you dont mind be a little brave and doing it right.
Registered User
Joined: Apr 2005
Posts: 3,211
Likes: 0
From: F L O R I D A
Originally Posted by eurotrashdtm,Jan 25 2007, 03:32 PM
toda=46mm=more torque?
wildcard, are you saying that in addition to power and sound improvements w/ the ITB's, you have also shed 60lbs while maintaining A/C?
wildcard, are you saying that in addition to power and sound improvements w/ the ITB's, you have also shed 60lbs while maintaining A/C?
Registered User
Joined: Nov 2004
Posts: 4,287
Likes: 1
From: UCF Knights!
Originally Posted by eurotrashdtm,Jan 25 2007, 03:32 PM
wildcard, are you saying that in addition to power and sound improvements w/ the ITB's, you have also shed 60lbs while maintaining A/C?
Registered User
Joined: Feb 2006
Posts: 260
Likes: 0
From: Ogden, UT
Originally Posted by ERL_S2000,Jan 25 2007, 12:33 PM
You have to make a custom cooling line that you can mount you coolant temp sensor on so you can set up your warm up enrichment.
Ryan
Registered User
Joined: Nov 2004
Posts: 4,287
Likes: 1
From: UCF Knights!
Some kits come with provisions for the stock temp sensor, but none of them are positioned to where you can actually plug the harness into it, from what I know. I "rigged" mine up to work by running 2 18 gauge solid wires with female spades on the sensor to 2 male spades pushed into the harness slots (basically, made a big 2 wire jumper.)
Although at first thought you might think, ah, I'll just hook this up later...don't. You computer will see the failed temp sensor as -60 degrees or some crap, and add 20% fuel to every cell to compensate. You can tune this way, but it's innacurate, and your maps will be worthless the moment you hook that temp sensor up. (What happened to me).
Although at first thought you might think, ah, I'll just hook this up later...don't. You computer will see the failed temp sensor as -60 degrees or some crap, and add 20% fuel to every cell to compensate. You can tune this way, but it's innacurate, and your maps will be worthless the moment you hook that temp sensor up. (What happened to me).