What ITB's on the toyota lump?

[GmasterT]

Is there any options for ITB's on the latest models with the Toyota engine chaps?

[Boggy]

GmasterT said:

Is there any options for ITB's on the latest models with the Toyota engine chaps?

Sorry for being a numpty what's ITB stand for?

Boggy

[cej]

Individual Throttle Bodies



I've tuned a couple of racecars with Honda k20 engines and ITBs, *mmmmmmm* sweet music

[Boggy]

cej said:

Individual Throttle Bodies



I've tuned a couple of racecars with Honda k20 engines and ITBs, *mmmmmmm* sweet music

Don't know enough about that I'm afraid

Boggy

[GmasterT]

Lol, I'm gonna make some phone calls then, I reckon the old jap lump will work well with some and a vems or something, cheers

[Gooby]

GmasterT said:

Lol, I'm gonna make some phone calls then, I reckon the old jap lump will work well with some and a vems or something, cheers

I have never seen any ITBs on the 'yota lump. I would start any search with Fensport. Tell us if you have any luck.

[Furyous]

Shirley Jenveys and emerald or bike tb's and emerald ?

[GmasterT]

Maybe, but the Jenveys are quite 'messy' and not always well matched. Good call on the Emerald, although I don't know how it would fair with the VVT

[Furyous]

What do you mean by messy ?

Have you seen a nice bike tb set up ?

Mate has one on his Fury/Zetec, works a treat, and loads cheaper than Jenveys.
The emerald can do pretty much anything, and if Dave Walker cant make it run nice, then no one can imo.

[GmasterT]

Messy as in buying 100 different bits with another 50 options to mate together, rather than one nice neat ITB set up with simple linkages, using original fuel rail and long transitional air trumpets to 'convert' the flow shape more progessivly. Don't get me wrong, I am not knocking the Jenvey's as such and often the numerous different bits can have advantages, but air needs to be simple and cleanly fed into the engine, esp. if keeping N/A.

I think any modern ecu system would do the job tbh, I have been to emerald a couple of years ago on a 'shootout' day and it's a fairly impressive bit of kit and I know it is very popular on the elises.

[GmasterT]

Oh, sorry, bike TB's, again, not bad but not ideal imo, a bit DIY and designed for bikes

[Furyous]

Wouldnt agree with you on bike tbs.I think they offer a very simple and effective method of injection.

What dont you like about them ? Have you seen them in action ?

As I said, mates Fury/zetec runs perfectly, and its about 170hp too.

[cej]

Here's a dyno of one of the cars I've tuned. It was tuned on possibly the lowest measuring dyno in all of Denmark ( our base run was 10hp down from the reference dyno ).

This is with Jenvey 52mm ITBs. There does seem to be a disadvantage to the Jenveys compared to TWM ITBs, the ITB manifold is very short so the power is shifted upwards. This is with a limiter at 9300.

In a couple of weeks I can tell you the difference compared to a setup with 52mm TWM ITBs on a similar engine:

Edited by cej on Friday 28th September 09:40

[GmasterT]

cej said:

Here's a dyno of one of the cars I've tuned. It was tuned on possibly the lowest measuring dyno in all of Denmark ( our base run was 10hp down from the reference dyno ).

This is with Jenvey 52mm ITBs. There does seem to be a disadvantage to the Jenveys compared to TWM ITBs, the ITB manifold is very short so the power is shifted upwards. This is with a limiter at 9300.

In a couple of weeks I can tell you the difference compared to a setup with 52mm TWM ITBs on a similar engine:

Edited by cej on Friday 28th September 09:40

Looks good

I gather thats the K20 engine? The cams seem to come on a lot smoother than other 'hard tuned' K20's I have seen, what management are they on hondata?

It would appear that Jenvey dont do a manifold for the 2zz but I have seen some very nice renaut F7 prototype ITB's from a company who may well be looking intodoing something similar for the new elise, so I will keep an on those too, failing that it looks like modified bike ones may be an option, but for the cost of having them done 'properly' I think it's worth waiting to see, esp. since things are still under warranty

[cej]

Yup,I use Hondata engine management system . Brilliant

[GmasterT]

Yeah, nice and easy and certainly impressive on the K20!