Im getting ready to auto swap a couple GVR4s and have already auto swapped 2 1gs using a 95 trans and a 98 trans. Your quote has some incorrect data. The gear ratio differences between the 91-96 vs 97+ transmissions are offset by the same year transfer case. The rear end gear ratios stayed...

If that was what you were meaning, thats fine and thank you for clearing it up, but its not what your post was actually saying when the sentence before it was "You want VGT if you need to improve spool from cruise and boost recovery after shifting." and the two right after it was "This is for...

That is one setup that would benefit from this controller, but not the only one. It is also your opinion and not necessarily a fact. Its also not the only setup or platform for that matter that could benefit from this controller or a VGT turbo in general. It would be a shame if this thread...

I dont want this to turn into a big debate. Im not going to speculate and I could be totally wrong, but I have a feeling that once the controller dials in its tables that the VE will be fairly predictable. It wont matter if its not always the same as long as its consistent. Obviously if it...

Although its a cool feature, Id like to suggest that you dont make the controller dependent on a mas signal to work correctly. Quite a few people are switching to speed density and those people will not have a mas signal to feed it. Also, those people that arent running speed density are not...

Its been a while, so I thought id give an update to post #27. I had a major engine fire that destroyed the car. I salvaged what i could from it and built another car similar to the old one, but its a slightly different setup. Surprisingly, the turbo was undamaged and im still using it...

The supercharger on that engine takes more power to run than 99% of us will ever make. Not a very good comparison. Although at 8000+hp, that probably is a high velocity port.

The one i was using started having sealing issues after letting it sit all winter. It probably would have only need a retorque, but i needed to pull the head for other reasons so i replaced it with a felpro composite gasket. I wouldnt be afraid of using another one in the future, but i would...

This is a great manifold. It sucked that Jake quit making them. Im looking forward to them coming back.Here are some pics of mine.HX52 fits snugly on a 1g with this manifold too.Wrap installation.It survived a major fireLatest setup

Id like to find a HE221w. The only one ive seen was on ebay about a year ago. I ran the bid way up on it before giving up though. Whoever won it really wanted it. It is used on the ISBe 4.5L 4 cylinder Cummins. I used to have more info on it, but ive switched computers since then. IIRC, i...

I think ive recommended this on the last thread, but you want a wh1c actuator if you are going to use a Holset actuator. I just tested mine and it starts moving around 13psi and is fully open less than 20psi.

My estimation was based on what ive seen on my hx40. With a non-divided manifold and 18cm housing i would see full boost around 5100rpm, but with a divided manifold and 17cm housing it changed to around 4100rpm. With the same non-divided manifold and a wh1c with a 12cm housing i would see full...

I guess i missed that thread. Very interesting.Cassera, yeah most Holset housings are divided. The most common hx35 housing is a divided 12cm which will probably spool ridiculously fast with a divided manifold.Has anybody finished a twin scroll 12cm hx35 setup yet? I would...

Actually you would want to use a divided Holset housing instead of a BEP to match a divided manifold.

IIRC, the 04 was a split year for the turbo. 03-04 should have a he341cw and the 04.5 got the he351cw. Either way id be looking for problems if it was spooling much later than 4000rpm.

It would be a lot cheaper to actually diagnose the problem rather than throwing parts at it and hoping something fixes it.

It could be a lot of things. Boost leaks, exhaust leaks pre-turbine, wastegate not all the way closed. You are using a he351cw, right?

Try taking the mbc out of the middle and just run a line from the turbo to the wastegate. That should give you whatever boost your spring is.

You can also hook an external up by leaving the top port vented and hook the source/boost controller to the bottom and it will work too.

The heater hose should be alright for a little while, but it will become spongy and brittle. It should last a couple years if you dont have to take it off though.

Are you using the Holset actuator? If so, its probably got too much spring. IIRC, the lowest Holset actuator is on the WH1C at 17psi. Make sure its putting pressure on the flap when its suppose to be closed too.

This is getting a little off topic. Thats not exactly what im saying, but once you get close to the limits of an internal part your tune being off can cause it to be over that limit. What im saying is pressure doesnt make power or break parts. Volume does. 35lb/min@40psi would cause less...

Manifold pressure has nothing to do with the limits of your bottom end. Unless your tune is off, 50lb/min@30psi is going to stress your bottom end the same as 50lb/min@35psi. I was running 35psi on my WH1C with a stock 135k mile engine. I didnt even have head studs.You have to make your own...

Since you are running e85, why does needing to run high boost to get more volume bother you? Since the Holset can hold up to the high boost, i dont see the problem.Also, if you are considering the T3 BEP housing id suggest just sticking with the 12cm housing. It might look big, but its not...

Im sure with the right tools you could make it work, but unless you can do all this yourself it would probably be cheaper to buy another wastegate. If cost is the issue, try finding used parts.

This is how Mitsu does it.

AFAIK, Cummins were available in F550s and larger.Are you talking about the BEP housing or the Holset housing? Ive seen this on a lot of BEP housings, but a divided manifold isnt going to help a non-divided housing.If you are talking about only gating 1/2 the cylinders using the...

We really need to think of the feed line/bearing and the return line as 2 separate, but related systems. If the pressure on the feed line is within spec for 15w40 and you are using a thinner oil, you are running more volume through the bearing. This can help in lubrication and cooling. Once...

Ive stated this many times before, but your drain size is dependent on oil viscosity. If you run 15w40 or thicker oil and drive in cold climates without letting your oil warm up before you drive, 10an will be too small. This is what the spec is for. If you are running thinner oil or let your...

The housing i found was on a 8 blade hx40. Its internally gated. They can be hard to find though. It took me months to find one

The two that i know of for the hx40 are a 17cm^2 and a 19cm^2.

The compressor wont fit unless the cover is machined. It will probably be cheaper to find a used hx40 compressor cover than it would be to have somebody machine the it. Externally, the hx40 cover isnt any bigger than the hx35 cover.

Changing the studs would be the easy part of the swap. The hx40 exhaust outlet is bigger, so you will have some exhaust work to do if nothing else.

Yeah, i believe its the same manifold. It was given to me by a friend, so im not 100% sure its the XSPower. On mine the angle it placed the turbo at gave way too much compressor cover clearance which reduced the exhaust housing to block clearance and also points the exhaust more towards the...

Yes it was slow. This was on a 135k mile 6 bolt with hks272s. It was probably closer to 25psi@5100rpm though. It was like a light switch around that rpm though which is why it was hard for me to give a definite spool rpm. It would hit so hard in 3rd that it felt like it would break the tires...

I dont think its a goofy way of looking at it. When people explain it as "you need 30% more to run e85" they take the ability to run leaner into the mix as well. Using your numbers and 12:1(gas scalle) vs 10.5:1 gives you that 30% number. 803 gas = 1050 e85 at WOT.I also dont really look...

Having the hole on one side of the housing doesnt matter too much if its used with a non-divided manifold. Id consider it a lot better than mounting a wastegate on only 1 runner of a manifold.Not everybody needs to run less than 20psi, even though i got mine down to 18psi and could have...

You can use the internal wastegate on the stock Holset housings if you plan on running high boost. The hole is only 20mm and the actuators are at least 17psi, AFAIK. The actuators are adjustable if you drill out the lock, but you can only lengthen the rod so far before you are no longer...

If you do radius the divider though you wont be able to use it later on in a twin scroll setup. This wont matter to most users, but i thought i would mention it anyways in case anybody planed on doing that later.

Ive heard a lot of guys say that you have to have a wideband that displays the correct AFR for e85 to run it. In reality, unless you know the exact mixture of ethanol and the AFR calculation is adjustable, its not going to be 100% accurate anyways. Pump e85 can range anywhere from 70-85%...

I ran that combo on my car for over 2 years. Idle was alright for me. Its obviously not the best setup, but it works.

As stated before, it really comes down to oil viscosity and temp. If you are running 20w50 mineral oil in really cold weather, probably not. If you are running 0w20 synthetic, without a doubt.I ran both a WH1C with 220k miles on it and a new HX40 with a -10an/stock drain and 5w30 synthetic...

Remember that these recommendations are based on 15w40 mineral oil that is also recommended. This oil is extrememly thick when used in cold climates and drains very slow compared to even 10w40.here is a good visual.In my semi, i noticed a huge difference in cold (below freezing)...

There are 4 compressor wheels. 8 blade, 7 blade, 56mm 6 blade and 60mm 6 blade. Also, i have both turbines, but the 10 blade i have is trashed so i couldnt use it anyways.

UncleBens, you only got 2 years on me. I know what you are saying about hyped turbos. The major difference here is that the manufacturer isnt the one making all the hype. Its the users. Cummins (parent company of Holset) could care less if we like their turbos or not, but they are usually...

If you want more 16cm to 18cm comparison pics, let me know. Both of mine are t3 inlet and wastegated. I wish i could have used the 16cm housing i have, but it has some melted piston inside.

The RoadSurge shift box can be used with external inputs, so if you have the paddle shifter already whatever you want to trigger the shifts it should work.

Im currently not running an oil cooler. I dont have an oil temp gauge to see how hot it gets, but id suggest running a good synthetic oil if you dont run a cooler.

Has anybody ran a 3" turbo back exhaust on a 13g? I know it creates a lot of boost creep on a 14b is why i ask.I think the auto would be good for autox with a couple of upgrades. Like suggested earlier, id at least upgrade the cooler, add a shift kit, run a road surge shift box or if your...

Ive been using this head gasket since july. It did leak coolant when it was first installed, but stopped when i did the recommended retorque after 1 heat cycle. Ive been running 30+psi since it was installed without any issues and even 40+psi accidentally a few times. I didnt have my block or...