Electrnic Throttle Upgrade For 26/30

[stomper]

As the title states, i am interested to see if anyone is aware of an electronic throttle (DBW) that would be able to be added to my 26/30 setup.

I think i will be retiring my car from road duties later this year, and stripping her back to race - as i run a link G4, i would like to investigate the electronic throttle setup.

Thanks in advance

Mike

[Beer Baron]

I have never heard of anyone bothering. the standard 6 throttle set-up is a good thing. and if you find you need more flow there are at least 3 larger 6 throttle set-ups that I know of (1 over bore, and 2 complete replacement set-ups) and if they are not big enough (the biggest is said to be good for over 1000hp) then there is a wide range of big single throttles up to 100m or so.

sure with drive by wire throttle set-up you can write nice throttle curves etc but for the cost and effort involved I don't really think it's worth it. In answer to your question though, I personally have never seen a drive by wire throttle set-up on any GTR either 26, 28 or 26/30 and I have probably seen under the bonnet of thousands of GTRs...

[Fastrotor]

I have a BA falcon electronic throttle setup going into a top mounted W2A cooler on my 13B engine in my S4 Rx-7. Will be using the Link G4 extreme.

Do you have the extreme ? The storm doesnt do FBW i believe. Last time i checked i don't think the link extreme had the E-throttle control enabled yet.... it was one of those able too, but not yet configured or something .

Actually just checked , and yes, on there site they say "Electronic throttle control (available shortly)" ........ so you might want to wait until its Actually working ....LINK have a bad habit of having these wonderful options that never come to fruition...... which sucks !

If link haven't got the e-throttle working by the time i get around to finishing off the rotor, i'll just build a h-bridge driver circuit and control it directly myself, with just a 'tps' simulated feedback to the ecu.

Gary

[stomper]

I have never heard of anyone bothering. the standard 6 throttle set-up is a good thing. and if you find you need more flow there are at least 3 larger 6 throttle set-ups that I know of (1 over bore, and 2 complete replacement set-ups) and if they are not big enough (the biggest is said to be good for over 1000hp) then there is a wide range of big single throttles up to 100m or so.

sure with drive by wire throttle set-up you can write nice throttle curves etc but for the cost and effort involved I don't really think it's worth it. In answer to your question though, I personally have never seen a drive by wire throttle set-up on any GTR either 26, 28 or 26/30 and I have probably seen under the bonnet of thousands of GTRs...

Fair point, all siad and done it begs the question why there are a profusion of large single TB setups around.

Outside of that, if the ECU supports it, i would hope to get better control of my throttle and response. Beyond the actual FBW TB and the pedal/sender, what more cost would there be????

[Beer Baron]

I think the answer is ease of install, cost, and tuning reasons. as I said you can get off the shelf multi-throttle upgrades that will support over 1000hp so it's not purely a power thing. the problem is cars with big singles that are running MAP based ecu's often have trouble getting stable pressure readings from the small vacuum chamber between throttles and head. by moving to a single throttle pre-plenum instead of multi throttles mounted post plenum you now have a much bigger volume of air to work with which dampens down those fluctuations. the other reason is cost. you can buy an off the shelf aftermarket plenum AND a big single throttle for the cost of a nice set of aftermarket multi-throttles and the single throttle is simple to set-up with big single turbo, big cam, MAP based ecu applications.

as far as advantages of going from the stock multis to a single FBW. well you will always loose a little throttle response by moving the throttle from post plenum right next to the inlet ports to the pre plenum spot. BUT by being able to tweak the throttle response maps you may get some of it back. the main benefit is being able to tailor the throttle map to suit what you want, but tbh I don't see that much benefit in it.

like you said all you should need is the FBW throttle, an adapter plate to attach it to your plenum of choice, the pedal position sender and some wiring. then of course you need to set it up in the ecu. the only other thing to consider is what to do about the stock throttles if you keep the stock plenum? lock them open is not the best solution, and if you remove the rods and butterflys you may have to weld up the side holes. the best option is probably get an aftermarket plenum that will fit up with appropriate length runners without needing the stock throttles there.

personally it seems like a lot of cost for not much gain, but if you want to do it, go for it.

[T04GTR]

would be a great upgrade if you want to have a very efective antilag setup/idle control setup.

ve commodore 6 litre uses a 90mm unit.