Question About Twins

[R.O.R-2.0]

[410]

I have more pics coming.  You don't see much as far as turbos go now that the motor's in.  So just to clarify, this is a k03 with a k24.  From what I've seen so far this will be a perfect combo for the toyota truck setup and ideal for towing and low rpm torque.  If I was wanting to make more top end, like 180+hp, I'd go with bigger turbos.  Maybe k14, k26 For more top end performance.   

[R.O.R-2.0]

I have more pics coming.  You don't see much as far as turbos go now that the motor's in.  So just to clarify, this is a k03 with a k24.  From what I've seen so far this will be a perfect combo for the toyota truck setup and ideal for towing and low rpm torque.  If I was wanting to make more top end, like 180+hp, I'd go with bigger turbos.  Maybe k14, k26 For more top end performance.   

dont the K03 and K14 perform basically the same tho?

[410]

The k14 is physically bigger than a k03.  That's all I can really say about it.  I don't have actual numbers on them. 

[R.O.R-2.0]

K14 and k03 are very different.  K14 starts spooling 1500-2000 later than the k03 but flows waaay better at any rpm with boost.  10 psi on a k14 feels like more power than 15 psi on a k03.  Above 2500 rpms, the k03 is just an exhaust restriction.  They're too small even for a 1.6, IMO.  

thanks libby, ive never ran either turbo to know how either performs..

if these K03s are such a restriction, why do they use them on 1.8Ts? must be a much different K03 than the diesel one?

[410]

Your right R.O.R, the k03 on the 1.8t is very different.  I've run both the k14 and k03 but not on the same vehicles or setups and I've never had emp gauges on either.  I have a 1997 passat that's still intact.  I'll put some gauges in it before I tear it down to see what kind of exhaust pressures the stock setup sees.  Who knows I might even slap a k14 just to get some numbers.  I ran the k14 on my first toyota truck in the beginning and it wasn't too bad.  What I can say is the compound k03, k24 setup rocks compared to the single k14.  No comparison.  

[410]

Working on the exhaust.

[R.O.R-2.0]

you going to cross over under the transmission? or behind the transfer case?

im speaking of the exhaust system.. because the fuel tank is on the same side of the truck, as the turbos, and downpipe will be..

or is the exhaust going to be short enough that it doesnt matter what side its on?

[410]

you going to cross over under the transmission? or behind the transfer case?

im speaking of the exhaust system.. because the fuel tank is on the same side of the truck, as the turbos, and downpipe will be..

or is the exhaust going to be short enough that it doesnt matter what side its on?

The exhaust runs along the transmission and crosses over after the transfer case.  After that everything is in it's stock location.  I had to go with 2.25" pipe from the turbo down to the transmission then 2.5" to the muffler which is 2.75" in and out.  The exhaust is done up to where the tailpipe should be.


So we finally went out for a good romp.  I have some numbers.  At 26 psi, which is max boost, the k24 was making about 12 psi and emp's peaked at 40.  Not bad as far as I'm concerned.  I'd like to see emp's a little lower but all in all I'm very happy with it.  So far egts have only hit 1000'F under load and quickly drop off as soon as you're off the throttle.