houstonchapman1

I think I might try it out anyways but with more boost and an external wastegate. I do not floor it ever haha just normal driving. Of it doesn't work well I'll just grab a holder hx35 or something or a 50 trim or 57 trim

Cummins93

If you build a log manifold and plan to hang the turbo directly off the side of the engine I had a difficult time fitting the hx35 between the motor mount and the fire wall. A Holset H1C was a much easier fit, it is about 2 inches less in total length due to not having an internal WG. I used an external WG and put in a 4psi spring initially to start tuning.

A super 20g with the tdo6 housing was fairly easy to fit in and is optional water cooled and internally gated. Huge fan of water cooled just so I can have cabin heat in a very short amount of time. At 20 psig you run the turbo to its furthest efficiency island and are spinning over 130k. A good means of charge cooing is absolutely nessicary.

The fuel pressure regulator will not work btw.

houstonchapman1

why is it not going to work? My friend used it and raised the ful pressure then used the boost reference port and it worked just fine... I'll look at the other holset.

Cummins93

What vehicle does your friend have? What happens to the afr on the wideband when positive manifold pressure occurs while still in closed loop?

houstonchapman1

[QUOTE=Cummins93;3441224]If you build a log manifold and plan to hang the turbo directly off the side of the engine I had a difficult time fitting the hx35 between the motor mount and the fire wall. A Holset H1C was a much easier fit, it is about 2 inches less in total length due to not having an internal WG. I used an external WG and put in a 4psi spring initially to start tuning.

A super 20g with the tdo6 housing was fairly easy to fit in and is optional water cooled and internally gated. Huge fan of water cooled just so I can have cabin heat in a very short amount of time. At 20 psig you run the turbo to its furthest efficiency island and are spinning over 130k. A good means of charge cooing is absolutely nessicary.

The fuel pressure regulator will not work btw.[/Qu


2001 cherokee, it was open loop if I remember. When it was closed looped it would lean tf out if I remember right

Cummins93

Exactly. Part throttle boost is going to be an issue. Also you have no way to pull back timing in boost. I use a 1913 AEM FIC because it can offset the o2 signal, handle larger injectors and pull timing along with some other features.

houstonchapman1

Was it difficult to wire in? I've looked at some msd stuff I forgot what it's called msd btc I think but it runs expensive. I'm gathering stuff over time though I'm not doing it all at once. I could run open loop but wouldn't the car run like garbage if I do?

Cummins93

Running open loop by unplugging the upstream o2 sensor? Yes it will run poorly. Your fuel mileage will suffer as well.

The FIC isn't that hard to wire in. you need to be good at soldering. The only tricky part is the whole in and out labeling of the wires. If you mix them up the jeep will run with the bypass installed but not with the box hooked up.

CobraMarty

Your '01 is the most difficult to get to go into 'open' loop.

Just to run some numbers-
Stock 190hp/225tq

Boost 7.35psi = 1.5 PR pressure ratio
7.35 psi = 1.5 PR =50% increase in power x 190hp stock = 285HP
285HP = 28.5 lb/min = 415CFM @120*F

Boost 11psi = 1.73 PR = 73% increase power x 190hp stock = 328HP
328HP = 44 lb/min = 637CFM

These are the numbers you need to use when looking at the compressor maps and trying to choose a turbocharger for your needs.

Turbo X_J

My 2¢,
2001 w/0331 is probably the worst thing to mod.

houstonchapman1

holy **** man, that's perfect! Thanks!

houstonchapman1

I'm very good at wiring. I'm sure I could find a diagram I'm the stock harness. What did you tap into on your install? If I could get that information. That would be great! Or pics would be great too lol

CobraMarty

Fuel Injector Selection............ Total Amount Fuel... HP...... Boost
22lb/hr x 6……...........stock...........….132pounds fuel…..190HP…..stock
30lb/hr x 6……...............…….....……….180pounds fuel…..260HP…..6 lbs boost
34lb/hr x 6…….............……..….....…….204pounds fuel…..290HP…..8 lbs boost
36lb/hr x 6…….............…….......……….216pounds fuel…..315HP…..10 lbs boost
52lb/hr x 6…….............…….........…….312pounds fuel.....450HP…..22-24 lbs boost
** Requires about 0.7 pounds fuel for each HP **

Bugout4x4

I have been keeping track and following this thread and I want to thank you for the huge wealth of knowledge and tech details you have all shared here guys...

Cummins93

You can mod the engine. When it blows strip it and transfer it to another engine. Not all the 0331 heads were complete crap.