Jeevny!
Nice once, expecive but as ultimate as anything can be in the N/A world.

 

Yuppers I went for the Jenvey's because 1.) They are BAD ASS, and 2.) I got a deal I couldn't pass up on ebay. I can't wait for them to get here

Wait till you guys see what I've got up my sleeve for filtering...

 

One big foumfilter or 4seperate!
Hehe, there are some nice examples on http://www.jenvey.co.uk/.

 

If I understand correctly, the ITB's working with big cams and big exhaust = 240 - 260hp approx? And the ITB's produce big gains by allowing large amounts of air flow. Combine with more fuel and larger exhaust to generate very high hp for a NA setup.

Are there drawbacks to the ITB setup? Are the hard to tune? Can you daily drive with them?

 

They can be un-reliable and very hard tune... And for the money you will spend on them you could get alot more power with a turbo set up for them same price.

 

I thought you were someone else....sorry dude

 

ya, but a ITB'd s2k at 9k=

 

Drawbacks...cost, associative parts necessary to tune, hard to "undo", a bitch to tune w/o a basemap, filtering.

Cost: I got a great deal on ebay. Less than half the cost of the kit, and basically a set of 440 cc/min injectors free

Associative parts to tune: You pretty much need a standalone ECU to get all the benefits of ITB's. I have an AEM EMS w/ wideband already. An adjustable fuel pressure regulator is also needed. I still need to pick up one of those.

Hard to undo: Basically, fuel lines, vacuum lines, and throttle cables as well as other stuff, need to be cut/modified. The install itself is fairly straight foreward, but getting everything else hooked up and plumbed in correctly is a PITA.

Tuning: Basically, you need a completely different fuel and timing map to run ITB's, due to the fact that your airflow and mainfold absolute pressure are going to be very different from stock. Going from 1 62mm throttle body to 4 50mm throttle bodies is going to increase the velocity and volume of air dramatically.

Filtering: Ha! Good luck. Some kits come with provisions for a horizontally mounted filter, but basically, you're on your own. These kits are designed for race-only applications, hence, the lack of any filtering. I'll post pictures of my design when I'm completed with them.

 

its all good

 

with the new header combined with cams i am hoping for mid 240's at the wheel! im back in the NA race baby!!!