Ran into the twin-turbo KA... Pics!!!

[amolao]

Ohhh yeaaaa...made in Puerto Rico

Killer setup, and way of keeping the SOHC power going.

ghx, is this in Tortuguero??? I see some palm trees...I love to see check this car next time I go to the "casa".

[ghx407]

^^^ Carolina. Doesn't really look like it in the pics, right?!

[nzmoman]

To all you guys saying the motor is too small for twins...

...Didn't the RX-7 come with a turbo? At 1.2 liters?? Isn't that half of the KA?

...And didn't it also come with a sequential setup as well?(Disregard that it's a rotary. Comparison is for engine size reference only.)

Ummm...the turbos are NOT sequential...twin sequential turbos dont function like a twin single setup. this would be like the rx7 (1.3L)having a single turbo per exhaust port...I dont think so. And dont forget how rev happy the wankel is. You need that huge rev range on a small motor to turbo it. The KA doesn't have that. Even boosted street bikes. They pull hard as crap, but they really hit it at the 6-7k+ rpm range. Below that they pull mostly because they dont have much weight on them.

[WDRacing]

The key here is so OBVIOUS that it gets over looked...

The builder had some simple idea's to start with, one being to turbo the motor that's in the car. The SOHC KA is just as good as the DOHC aside from not having piston oil squirters. So the "why SOHC motor argument" is retarded.

His next idea is one cherished by many TRUE enthusiasts...striving to be different. If you don't like it, then simply get in line with the rest of the sheeple and be quiet.

The term "efficient" is mentioned quite a bit here...but never explained. It's become a term loosely used and commonly coined. Simply put, efficient means for the given power goals of the user, will the compressor(s) flow map provide the correct airflow for the VE of the motor. Two small compressor housings matched with to smallish exhaust housings can be very efficient...arguing that is stupid so just don't.

Arguing that 2 exhaust ports is any worse then 3 per turbo is...well lets just say it shows you don't know what you're talking about. It's all about flow, not how many ports are doing the flowing.

I could go on and on about why a twin setup isn't a bad idea. Would I do it? No...frankly because I can do what he does with one turbo and for less money. But I'm not him am I? I took the easier more traveled road to boost.

He should be elevated higher then the average KAT enthusiast for having the balls to create something that is truly different. Not have his motives questioned and picked apart...and done poorly at that

WD

[ghx407]

[Defcon86]

The key here is so OBVIOUS that it gets over looked...

The builder had some simple idea's to start with, one being to turbo the motor that's in the car. The SOHC KA is just as good as the DOHC aside from not having piston oil squirters. So the "why SOHC motor argument" is retarded.

His next idea is one cherished by many TRUE enthusiasts...striving to be different. If you don't like it, then simply get in line with the rest of the sheeple and be quiet.

The term "efficient" is mentioned quite a bit here...but never explained. It's become a term loosely used and commonly coined. Simply put, efficient means for the given power goals of the user, will the compressor(s) flow map provide the correct airflow for the VE of the motor. Two small compressor housings matched with to smallish exhaust housings can be very efficient...arguing that is stupid so just don't.

Arguing that 2 exhaust ports is any worse then 3 per turbo is...well lets just say it shows you don't know what you're talking about. It's all about flow, not how many ports are doing the flowing.

I could go on and on about why a twin setup isn't a bad idea. Would I do it? No...frankly because I can do what he does with one turbo and for less money. But I'm not him am I? I took the easier more traveled road to boost.

He should be elevated higher then the average KAT enthusiast for having the balls to create something that is truly different. Not have his motives questioned and picked apart...and done poorly at that

WD

Preach it brother.

I ll tell you why he did it guys. BECAUSE HE F#CKIN CAN.

[amolao]

YOu CAN DOO IITTT!!!!!!

[bostafari]

looks good on paper

[Topless_92]

Nice work, but not the most efficient setup...there's only 2 exhaust pulses per turbo.

Not necessarily. If he's using a log style manifold(which is about the only manifold that would fit in that tight space) he has equal pressure coming from 4 pulses to both turbos...

[1unar3clipse]

It's probably fun as hell to drive.

[r34 gtr]

Get this guy on here, I want to tell him how totally f'in sweet his car is.

Are those two stock wrx turbos? If so, they would be a damn fine match.

[Priceless89]

That is an amazing what he has done. IMO I would have stuck with a single, but props for doing something completely out of the norm

[ken240sx]

This is similar to a quad turbo set-up on a v8. I've seen a writ-up and pics on a quad turbo vette....that thing hauls *** and runs like 1400hp. That means that he has 2 turbo's for each side of the engine...just like this guy...

Efficiency is based on matching your turbo(s) to your engine. If I just put the biggest turbo I can find on a small engine that revs low, it's going to be uselessly inefficient, as with putting a little dinky one on say a giant diesel. As long as he did his research and matched them properly I don't see much of a problem.Twins don't have to be sequential to be efficient...that's why many rx owners jsut drop in two the same size. Now If you have two t25's you're going to make great low-mid range, but in top end will be similar to a t3 or t4, even though you'll have more backpressure with 2 turbos, there's less exhaust flow through each turbine which helps relieve the bottle neck you'd think there may be. Also yo're flowing air out of 2 turbo's instead of one...so even with 2 relatively small turbo's you can still have low, mid, and even higher end power.If you put 2 t3/t4 hybrids, you'd probably end up with decent mid range and spool characteristics of say a t4, but you're top end would have butt loads of airflow for nice power.

So i'm gonna go out on a limb and say backpressure shouldn't be an issue with 2 smaller turbo's because they are being powered by 2 cyl worth of exhaust flow vs 4....so not only are there less heat pulses to interfere, but if you match an exhaust housing to the flow characteristics of 2 cyl, there should be no issues with inefficiency, especially with a ball bearing turbo.

just my take....at least he did something that makes him stand out, whether it runs great or not.

[Red93coupe]

Well everyone can argue all they want, that car is awesome, I would drive it for sure!!! I guess its not JDM-tyte but I think its a pretty innovative design for you all you KA-T(T) people out there!

[Fancy_Footwork]

Any way you cut it that ***** is bad. Even if it doesn't seem possible/efficient/cost effective, so long as it hauls *** that's all it matters. Don't hate - congratulate.

I'd love to know how hard it pulls.

[addisonblck]

granted there is a why factor there but then u look at wat everyone else is doing these days...then u see his reasons....... that sh!ts ballin!

[moulton712]

sohc.. that is sick

[ken240sx]

me want to drive it

[thefro526]

Thanks gotta be the coolest KA I've every seen. Regardless of the performance bonus, it's still far different than most of us KA owners and we can only hope to dream of rocking TT on the KA. I really like it and assuming you size the turbos and tune the motor correctly it should work great. In the end it's a hell of alot faster/cooler than my car so I'm not gonna spit any hate.

[Dittoz7]

Porque!

[My RB25]

Sorry if someone else mentioned it before me. I haven't KA-Ted yet, but will in the near future. But can someone tell me why the rear turbo has only one clamp on the silicone boot?

I've always wondered if someone KA-TTed and thought about doing it myself one day. But here it is, now let me get back to staring at the pics...

[mirochuki13]

That's awesome. But would definately make a bigger impression if the engine was nice and clean... lol.

[eazye2000]

Thanks WD. You went where I was trying to go....

But as expected.... Most people just don't understand turbos.. They think they can just slap one on, and go at it... Let alone, TWO of them...

I was only using the rotatry(wankel), as an example of displacement. And to the guy who wanted to argue about how it revs more... Pfffft... The SOHC KA can and will rev to the sky if built correctly. Even Nissan(NISMO), has parts available for this to happen, last time I checked. So if you want to compare the Rotary, to the SOHC KA, then have at it.

But again, thanks WD for putting this into perspective for most/all people on here. I think I've proved myself, along with yourself, in the KA forum that I know turbo's a bit more than most. It's all about VE, and how you pair your manifold to the turbo's. Maybe he had a log... Maybe he had something similiar to a Twin-Scroll setup, utilizing every bit he could. I have no idea by the pictures.

~Eazy

[VirginiaPS13]

Another KA-TT setup, this one is a dual cam though.I am definatly not a fan of TT set ups but everybody has their own opinions.

Here a few more pictureshttp://www.rhombus-tuning.com/...t=348

[ghx407]

[fetherw8]

SOHC-TT FTMFW!

[Koshin]

Pretty cool...for a KA

[TerminalVelocity]

Por qué!

fixed

I'm diggin the ka-tt.

[Se7in]

I have been cooking up a twin setup for my dohc for about a month now. I'm doing two log mani's (think one per two ports) mated to the goodness two cute IHI RHB5's. We're still playing with exhaust and I'm meeting with a calif. referee to see if we can do it within the letter of the law (if not we're doing it anyway, that just means I get to ditch all of the emissions BS).

[tad_07]

it is possible to have 1 turbo per cylinder, just depends on what your doing and your goals. There is a chevy belaire with 8 turbos, it was on the Hot Rod Power Tour.