Report: Supercharged Toyota 86 being developed by TRD!!

[carbonBLUE]

Originally Posted by Homemade WRX

I don't think it'll be that hard for people once they understand the purpose and strategy that the port injection is used for. I do however foresee some issues in people making large changes with DI...

direct injection provides a more homogenous combustion and later injection timing, being able to add bigger port injectors lowers cost and complexity of modifying, either way direct injection has to be used because if they arent spraying, the tips foul because fuel isnt cooling them off

it will be a challenge but overcoming these challenges will bring fourth better numbers and prepare us for when other manufactures decide to start using similar injection technologies and we want to modify/swap their engines into our custom built cars

[Homemade WRX]

Originally Posted by carbonBLUE

direct injection provides a more homogenous combustion and later injection timing, being able to add bigger port injectors lowers cost and complexity of modifying, either way direct injection has to be used because if they arent spraying, the tips foul because fuel isnt cooling them off

That doesn't do it justice for all the effects it brings. I do agree that the port injection is the EASIER but not better means of increasing fuel flow for the engine. The higher your percentage of mass fuel from port, the lower you det threshold becomes, in comparison, just an FYI. I'm not one for cutting corners.

I plan on upgrading the DI side of things and leaving the port as they are now and used only in its limited region of lower RPM and higher load.

I do agree that upgrading port injectors is far easier and cheaper and I'll probably initially setup this way while I'm working on the DI upgrade route. I've already been speaking with a friend who works in the injector side of Siemens (where they've been wanting to get into the aftermarket-market) and working with the great guys at Deatchwerks. I still can't get an answer on how the DI injector sizing on the FA20 nor which HPFP it is coming with.

As for other market details, I shouldn't really spill too much yet. Many things are going to be beta-tester stuff, which I'm looking forward to

[carbonBLUE]

Originally Posted by Homemade WRX

That doesn't do it justice for all the effects it brings. I do agree that the port injection is the EASIER but not better means of increasing fuel flow for the engine. The higher your percentage of mass fuel from port, the lower you det threshold becomes, in comparison, just an FYI. I'm not one for cutting corners.

I plan on upgrading the DI side of things and leaving the port as they are now and used only in its limited region of lower RPM and higher load.

I do agree that upgrading port injectors is far easier and cheaper and I'll probably initially setup this way while I'm working on the DI upgrade route. I've already been speaking with a friend who works in the injector side of Siemens (where they've been wanting to get into the aftermarket-market) and working with the great guys at Deatchwerks. I still can't get an answer on how the DI injector sizing on the FA20 nor which HPFP it is coming with.

As for other market details, I shouldn't really spill too much yet. Many things are going to be beta-tester stuff, which I'm looking forward to

sounds great i wouldnt cheap out and get only bigger port injectors... id probably make both of them bigger at some point,

for the majority of people on a budget when making builds, larger port injectors will be more popular due to the fact of cost and the limited income they make

im sure TRD or STI will be the first to have one in development, and probably already have one...?


i just cant wait, 6 months - a year from now.... all the goodies

im glad my first mod is going to have a paid off car when i leave the lot yay!

cant wait to hear what yall come up with HOMEMADE WRX

especially cant wait till we have maintenance, DIY's, turbo/supercharger, ohh noes something broke and can you help me, threads... lol

[Tradewind]

Originally Posted by arghx7

Somebody has to crack the ECU before any of that happens.

That is absolutely the question - the rest will never happen unless this D4S system is sussed out

Of course the engine mounts are 100% compatible with any WRX engine, if anyone feels like gutting their car for a motor swap - there is your option

[Maxim]

IF there is a kit released OEM, it might sway me to Scion over Subaru.

That being said...the car currently meets what I wanted from it, and I expect I can get 20hp from bolt ons (plus some nicer noises!).

27xxlbs + 220hp + RWD + great handling = happy me. I don't really NEED more, but if it's easy and reliable to get more, of course I'm ok with that.


I'd echo what some others are saying though.....I've had a 350hp IROC-Z Camaro, a supercharged Mustang Cobra, an Eclipse GS-T (POS!), a Suzuki SX4, and my current VW GTI.

I had the most fun in the SX4. It was slow...but the suspension tune was good and I had an absolute BLAST sliding that thing around on deserted gravel roads and through parking-lot created autocross courses (IN THE SNOW!). It was also basically invincible...nothing could hurt that car.

[Sully]

So any actual news on this front or is it still all speculation?

[Homemade WRX]

I think it was rumor mill hype but hope I'm wrong.

Hasn't TRD traditionally only done roots blowers? Always fun seeing those shoved on top of a boxer

[Dimman]

I heard there is a new more efficient roots design that approaches a twin-screw for efficiency but is way less money. This sounds like a pretty good SC option.

[old greg]

You're probably thinking of the Eaton TVS, it's been around for a few years now. It's what's on the Audi S4/A6, the ZR1, the CTS-V/ZL1, the Mustang GT500, the VW twincharged 1.4 and probably a couple of others.

[Tradewind]

Sounds like TVS to me too, I hadnt yet discovered they were cheaper than anything in particular, still plenty exy as a new item

[madfast]

Originally Posted by Homemade WRX

I think it was rumor mill hype but hope I'm wrong.

Hasn't TRD traditionally only done roots blowers? Always fun seeing those shoved on top of a boxer

FWIW the new Auris TRD available in South africa uses a "traction drive" centrifugal supercharger, which sounds like a Rotrex...

[2fast4you]

Originally Posted by Homemade WRX

I think it was rumor mill hype but hope I'm wrong.

Hasn't TRD traditionally only done roots blowers?

TRD USA made a shaft-driven centrifugal supercharger for the 2AZ (Scion tC, 2nd gen xB) from Vortech parts (but NOT built by Vortech) that was full of fail. I can't imagine they would want to go down that road again.

[Dimman]

^ Not interested in a centri at all, personally. They did do roots on the trucks and Solara, I think.

As for the TVS being cheaper, that is in comparison to a twin-screw like Lysholm. Not necessarily cheap.

[jayrod1980]

I see over and over complaints regarding the power from a turbo and high compression. I'm not going to comment on disrupting the balance of the car as I'm a total noob when it comes to handling but direct injection turbos cars make great power with very little lag on high compression. My eco boost flex has over 12 compression ratio and just returned makes at least 420 crank HP... probably closer to 450. The car has no discernible lag that I can tell... stock it hits full torque from 1800rpm to something like 5600rpm and my retune mostly just raises peak boost... all on 93octane. The new Toyota/Subaru has direct injection as well. I know a twin turbo ford v6 isn't the same as a 2 liter boxer 4 but I believe VW gti's are pretty lag free with a decently flat torque curve. This tech would probably be more costly than a supercharger but if you are talking fi then its still something to consider.

Edit: A 2.0 inline 4 isn't a boxer 4 either but it is a least a small, four cylinder engine with a single turbo set up.