91 Isuzu Pickup - Impulse Turbo Project!!

[cianciolokeith]

Hey everybody, Keith out of Port St Lucie, Florida here!! I havn';t seen anyone do a turbo project on the 4zd1 carb'd truck, so thought I'd start a thread on what I have to do to get this going!! Am going to use an Isuzu Impulse turbo setup.. Well, here is the first set of pictures!!



This is the first picture of the exhaust manifold. The impulse turbo manifold bolts directly onto the Pickup head, so no custom manifold needs to be made!! This is sandblasted & about to be painted!!



Another picture of the manifold, from a different angle!!



Picture of the turbocharger... Polished the intake compressor, and sandblasted the rest.. ALso ready for paint at this point!



Downpipe, sandblasted & ready for paint.

I ordered all new studs, bolts, and nuts from Isuzu, because the ones from the turbocharger were rather rusty, and all of them are still available from the factory, and are rather cheap.


Studs & Nuts to bolt Exhaust Maniold to Cylinder Head->
8942563750 x 7@$0.95/ea stud
9091105080 x 7@$0.58/ea nut

Studs & Nuts to bolt Exhaust Turbine to Exhaust Manifold->
8971045081 x 4@$2.78/ea stud
8971616070 x 4@$1.68/ea nut

Studs & Nuts to bolt Downpipe to Exhaust Turbine->
8941262100 x 3@$2.20/ea stud
8941566260 x 3@$0.77/ea nut

Studs & Nuts to bolt Exhaust pipe to Downpipe.->
0208010350 x 4@$1.00/ea bolt
8942013081 x 4@$2.81/ea nut

Bolts to bolt Intake Compressor to Turbo Turbine-> not serviced no part number

Bolts to bolt Exhaust Turbine to Turbo Turbine.-> not serviced no part number

Bolts to bolt Coolant lines to Turbo Turbine.-> 1096750810 x 2@$3.78/ea banjo bolt
9095714120 x 4@$0.63/ea gasket

Bolts to bolt Oil Lines to Turbo Turbine.->
0505406160 x 2@$1.72/ea bolt
9019108160 x1@$0.63/ea banjo bolt
9095714100 x 2@$0.73/ea gasket

Will have price on the gasket for the trubocharger & whatnot tomorrow, and will follow up with prices & part numbers!! Trying to be thorough as possible!! If anyone has recomendations on this build, please let me know!!!

-Keith
Port Saint Lucie, Florida 34953

[Bob w/ a trooper]

I don't have a whole lot to add other than: Good luck, and keep posting info. I'm looking at the possibility of turboing my trooper at some point in the future, so it'd be great to see what someone else has figured out.

If you haven't seen this already, here's a guy that did it: http://www.houlster.com/amigo/turbo/index.htm

Same guy, bigger turbo http://www.houlster.com/amigo/turbo2/index.htm

Good luck!

[bigpetey]

If you get the chance keep posting. I'm really interested in running a turbo setup on my motor. when I rebuilt my motor I did not bore the block over or shave the head. So I think the stock compression should be low enough to keep the motor from throwing the rods through the block. Someone posted here a few month back about running a turbo setup and he made his own carb hat but I have not been able to find his post to see what he used. I'm really interested in seeing how that works out for you.

[cianciolokeith]

New Update - Turbo parts have been painted, waiting on hardware to come from Isuzu themselves. Updates to come!!!


Polished & Black!!!


Polished & Black!!!


Pretty Downpipe!!!


Nice & painted Exhaust Manifold!!!


Exhaust Manifold - See, bolts right to the isuzu pickup head =D


New Fuel Regulator!!!

[Cronk]

Scott and I talked about doing this to my Trooper when I was back in California. I tried but I couldn't find the parts...... Turns out they are pretty hard to come by......
I'm interested to see the end result here.

[cianciolokeith]

Still waiting on bolts to come to finish the turbo build. Just ordered a stock Isuzu Impulse top mount intercooler for this build. Will make it possible to push roughly 10-12psi through the stock turbocharger, being intercooled. Got final paint on the turbo charger today!!





Updates coming!!

[cianciolokeith]

Well the turbocharger is put back together, with all new hardware, and the install will begin on Monday.



For my oil inlet, I am using a Weatherhead fitting, that is a brass block that has the same male thread as the Oil Pressure Sensor (this will thread into the block), then has a female inlet where the oil pressure sensor will thread into, and a hose fitting on the bottom, to run my oil inlet line off of.

I grabbed the same hose fitting to tap my oil pan, and thread into, for my oil return.

I found out that the Coolant Line underneath the exhaust manifold on the Isuzu Impulse is the same as the pickup, except that it has two hose fittings added to it, to cool the turbo charger, so will not have to do any modifications on those. Pictures of the coolant line will be up tomorrow.

Updates & pictures on the way!!!

[Bob w/ a trooper]

Looks like you've thought this out well!

Keep up the good work, and I can't wait to see this project done.


And if you can stand to spend the money, consider finding a dyno, and doing a couple of basic runs.

I'd be real interested to find out what the full torque/hp curve looks like once you're done.

[Madcat88/89]

Glad to see the turbo I grabbed for you is working out.

Looking good.

Jim

[cianciolokeith]

Project stopped. Decided not to turbocharge my motor, due to lack of funds, and whatnot. Feel that this project is going to cost me too much money in the long run, because even though I have everything right now, I will want it to go faster once I am done. lol. Up for sale in classifieds right now. Full kit, with all mod work done right now.

[jmsmilin]

I assume this is sold and gone. So the Impulse Turbo will work well on a 2.3 pickup?