ITB's available soon
10-08-2007, 03:54 AM
#21
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Originally Posted by plumpzz
Max hp you'd see on a v6 3.5liter is 350rwhp, so the 400hp number crank is reasonable. I think we should wait before jumping to conclusions though. Looks good to me, made for top end power though..
and I'm sorry, but you are not going to run these ITBs on a stock ecu, at least not with stock like driveability. I also know alot about ITB's, and I know a fair amount about a VQ35 - you are not going to net 25-30 whp via this standalone mod (it will take ALOT of extra stuff), but cheers to you, or the firm making it, for making the effort. For those with some more comprehensive builds, this could be a good power maker for sure.
Last edited by Z1 Performance; 10-08-2007 at 04:07 AM.
10-08-2007, 04:05 AM
#22
Theoretically you could get the stock ECU to run with these ITB's if they had both a 5v-0v and a 0v-5v TPS sensor. There would be many other things that would need to be done including the manifold which would use the factory MAF. I have been told that one of the main problems could be the gulp factor of ITB's which the factory MAF may not be able to keep up with.
Looks good! Good luck!
Looks good! Good luck!
10-08-2007, 04:06 AM
#23
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Originally Posted by RudeG_v2.0
Cool! Sounds promising. More questions...
Do you know if this ITB system has been used with a turbo setup yet as part of the R&D? Will the fuel rails and the rest of this ITB system be compatible with aftermarket injectors up to 1000cc size? Any chance of getting pics of the airbox that fits over this. Also, will the airbox and ITB setup fit under the front strut bar, not to mention the factory hood?
Thanks for your prompt responses.
Edit: It is truly sad that another British company developed and is releasing something as complicated as this ITB system in less time than it's taking Cosworth to get a f*cking plenum to the market.
Do you know if this ITB system has been used with a turbo setup yet as part of the R&D? Will the fuel rails and the rest of this ITB system be compatible with aftermarket injectors up to 1000cc size? Any chance of getting pics of the airbox that fits over this. Also, will the airbox and ITB setup fit under the front strut bar, not to mention the factory hood?
Thanks for your prompt responses.
Edit: It is truly sad that another British company developed and is releasing something as complicated as this ITB system in less time than it's taking Cosworth to get a f*cking plenum to the market.
Anyay, these guys have been around a long time and certainly know what they are doing. Not the type of mod I'd necessarily do on a street driven car without a really really good engine mgmt setup (Motec, Haltech, etc), but certainly will be interesting to see what the #'s and fitment/driveability is like
Even Jenvey recommends standalone for their kits as a blanket statement - not sure how that corresponds to this particular setup, but I'd bet they highly recommend it as well. ITB's are not set it and forget it type of things, but can be rewarding in the right hands
http://www.jenvey.co.uk/Tech_QA.htm
Last edited by Z1 Performance; 10-08-2007 at 04:14 AM.
10-08-2007, 08:53 PM
#25
Originally Posted by Z1 Performance
why is it sad? I'd think it was good that there are 2 options. Development work on anything worth having takes TIME - and so does manufacturing.
Like I said in the Cosworth plenum thread... If Cosworth made this ITB system, our grandchildren might be lucky enough to get one.
--Eric (anxiously awaiting more info, pics, and dynos for the Jenvey ITB system)
10-09-2007, 04:25 AM
#26
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I understood exactly what you wrote actually. I frankly don't care how long it takes. Hell we SELL Cosworth, and I don't care how long it takes - my only care is that when it is out, it is worth selling. I'm not part of the "I must have it now" mentality anymore. My build has taught me the value of patience, and the value of dealing strictly with manufacturers and individuals worth dealing with. An ITB setup is not earth shattering when it comes down to it - it could have been done within a month of the car coming out if someone was so inclined. So in the grand scheme of things, its taken each firm YEARS to develop and manufacturer products that, especially in the case of an ITB, could have taken 30 days.
But so what? Cosworth is primarily a development company. They too, like every other development company, is at the mercy of suppliers, or manufacturers, etc. As I said in the other thread, when it comes out, it comes out. It's not like there are any other viable options right now, and the install on such a piece is simple, so waiting certainly doesn't impact anyone.
I'm certainly interested in an ITB setup, and interested in the Cosworth setup, primarily because on paper, they should benefit a setup like mine. I just don't see the point of everyone constantly venting about how long it's taking.
That's my own opinion at least.
But so what? Cosworth is primarily a development company. They too, like every other development company, is at the mercy of suppliers, or manufacturers, etc. As I said in the other thread, when it comes out, it comes out. It's not like there are any other viable options right now, and the install on such a piece is simple, so waiting certainly doesn't impact anyone.
I'm certainly interested in an ITB setup, and interested in the Cosworth setup, primarily because on paper, they should benefit a setup like mine. I just don't see the point of everyone constantly venting about how long it's taking.
That's my own opinion at least.
10-10-2007, 04:31 AM
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Originally Posted by n1sm0r
How do you plan to use the stock ecu? Do you need to convert to MAP since I'm assuming your ITB's won't be using a plenium, theres no way to make use of the factory maf. Also, this won't work with FI unless you made a plenium for it. How will you be controlling the throttle since Z's are drive by wire. Also, ITBS alone won't net you 35whp. Those cars you are referring (that get 500whp stock) to have had INTENSE work done on the internals such super high compression pistons, knife edge crankshaft that was blueprinted and balanced, aggressive cams, HOURS of tuning, and ton's of other stuff.
You'll probably lose some torque from this setup, and I really doubt you'll get 35whp WITHOUT tuning. Maybe with an awesome tuner, and a free flowing exhaust , then MAYBE.
Too many unanswered questions
You'll probably lose some torque from this setup, and I really doubt you'll get 35whp WITHOUT tuning. Maybe with an awesome tuner, and a free flowing exhaust , then MAYBE.
Too many unanswered questions
Last edited by Rapheal; 10-10-2007 at 04:35 AM.
10-11-2007, 02:48 PM
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Pics of whole thing, ON STOCK engine... with STOCK ECU... working, running clip of it on dyno... and dyno sheets to prove results... than i'll be bought... otherwise, this to me is a figment of a very creative imagination, just as I am.
10-11-2007, 03:54 PM
#32
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Originally Posted by plumpzz
its hard to make more than 100whp/liter NA on 94 gas.
I've seen over 100whp/liter on my last two cars, both running 91 octane and stock internals. With some decent engine work (more than just the bolt ons I had on the cars), I could have pretty easily seen 110-120+whp/liter.
10-11-2007, 04:37 PM
#33
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Originally Posted by plumpzz
i just assumed 
. its hard to make more than 100whp/liter NA on 94 gas.
. its hard to make more than 100whp/liter NA on 94 gas.
10-11-2007, 11:12 PM
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Originally Posted by Z1 Performance
is it? Maybe as an OEM its harder to do, but its certainly not all that difficult via the aftermarket. Assuming an 18% drivetrain loss (no one really knows what it is on this car, and while 20% is the normally accepted value, we'll use 18% for this example), my own car is over 100 hp/liter...and I don't even have that crazy of a build, and am still on a stock intake manifold (modded, but still a stock unit)
Im still thinking 350whp is the barrier for a decent NA build, on pump gas (94 in my area) and a standalone.
10-12-2007, 09:30 AM
#38
Any other details on the Throttle by Wire setup? The pictures from the first post show that both banks can be run by one cable... but they fail to address how our ecu's are supposed to control them without switching to a cable setup.
Also, how is the air going to be routed to the horns? I sure can't run my car without a filter...
Also, how is the air going to be routed to the horns? I sure can't run my car without a filter...
