T28 on the KA24E

[RedDragun]

Well I have a T28 lying around not doing a whole lot, so I might as well put it to good use on pickup. I am having trouble finding a decent t2 flanged turbo manifold though. Will any manifold from a KA24DE fit the KA24E? I am making a list of what all I will need:

Some sort of engine management500cc or bigger top feed injectorsWalbro fuel pump (which one fits a 1990 D21?)Nismo FPR (looks like it will bolt on, I wanna run 4bar)Greddy type s BOVIntercooler and fabbed up pipingOil and coolant lines (where is the best oil supply and return locations?)Custom 3.5" turbo backKA24DE Intake Manifold and TB (anything else needed to bolt this on?)Z32 mass air flow

Am I missing anything fellas?

[breadbox]

IIRC the manifolds are not identical. I would suggest what many people do and build your own log type manifold. But if you are like me and have no welding knowledge or experience, then I would search nico and KA-t org classifieds for a KA24e turbo mani.

or check jgstools for their kit.


Modified by breadbox at 3:27 PM 11/29/2008

[RedDragun]

IIRC the manifolds are not identical. I would suggest what many people do and build your own log type manifold. But if you are like me and have no welding knowledge or experience, then I would search nico and KA-t org classifieds for a KA24e turbo mani.

or check jgstools for their kit.

Modified by breadbox at 3:27 PM 11/29/2008

JGS is T3... So are all the ones I have found online so far. Anyone know why a DE t2 turbo manifold wouldnt fit an E?

[breadbox]

you could buy a t3 mani and a t2 flange or a t2 manifold and the ka24de jgs Precision Machined Turbo Manifold flange for a ka24e or get an adapter plate machined.

[AZ89two4Tsx]

Why such a large exhaust?

[RedDragun]

3.5" worked really well on the T28 on the SR20DET in my Sentra. Plus I have more of it lying around off a friends duramax diesel silverado.

[breadbox]

Wow sounds like a macgyver setup. I have a passat side mount you can pay shipping. Lets get a setup going with less then $250.

[RedDragun]

That would be tight. How big is the passat intercooler?

I'm still curious about an engine management system.

Will a KA24DE ecu work for a KA24E?

Modified by RedDragun at 7:55 PM 11/30/2008

How much difference is there between the KA24DE exhaust flange and the KA24E flange? I'm thinking of going with the SSAC bottom mount manifold and modifying it to fit on the KA24E. Everything I have read says it is a good enough manifold.
Modified by RedDragun at 9:29 PM 11/30/2008

[nismopu]

the exhaust ports are completely different, wouldnt come close at all. Find one for a SOHC KAE with a t3 flange and buy an adapter from ATP turbo. Also, you could maybe get an KA24de ecu to work but you will need a whole new harness. Its best to just buy nistune for a SOHC ecu. http://www.nistune.com peace.

[breadbox]

I will take apicture and measure it for you when I get home and let you know.

[breadbox]

I forgot to measure it, but now I don't know where it is. A friend may have ganked it.

[breadbox]

Also KAe ecu for sohc only

KAde ecu for dohc, might run a KAe but then again KAe ecus are easy and cheap to find.

[C-Kwik]

Well I have a T28 lying around not doing a whole lot, so I might as well put it to good use on pickup. I am having trouble finding a decent t2 flanged turbo manifold though. Will any manifold from a KA24DE fit the KA24E? I am making a list of what all I will need:

Some sort of engine management500cc or bigger top feed injectorsWalbro fuel pump (which one fits a 1990 D21?)Nismo FPR (looks like it will bolt on, I wanna run 4bar)Greddy type s BOVIntercooler and fabbed up pipingOil and coolant lines (where is the best oil supply and return locations?)Custom 3.5" turbo backKA24DE Intake Manifold and TB (anything else needed to bolt this on?)Z32 mass air flow

Am I missing anything fellas?

500cc injectors is a bit bigger than you will probably need, but too much isn't necessarily a bad thing either. Not sure what kind of flow rates are available in top feed injectors, but I'd say 420 and up is more than sufficient for any reasonable boost levels being run on a T28.

I really don't see a need for you to run fuel pressure at 4 BAR. That factory FPR should be sufficient enough to handle any flow required to supply that T28. Especially since you are already planning to upgrade the injectors.

For the oil supply, you can simply run a T off the oil pressure sending unit. For the return, its best to remove the oil pan and have a bung welded in above the oil level line.

Not sure why you feel you need to swap INTAKE manifolds to the DE version (not sure if this is even possible). Most are looking to swap a DE to a manifold with shorter runners anyways. Keep in mind that the factory fuel rail on a DE manifold is also designed to be sidefeed. It can be converted, but it would add another expense of the SOHC fuel rail can't be adapted to work.

The SOHC and DOHC KA EXHAUST manifolds are very different. The DOHC mani uses equally spaced ports while the SOHC KA uses paired exhaust ports.

BTW, we have an entire section dedicated to turbocharging the KA24 motors. Much of it applies to the DOHC motor in a 240sx, but there are things that apply to the trucks and I'm sure there is more knowledge of turbocharging the SOHC motor in there than in the trucks section. Check it out.