Which turbo? 46 trim T3/T4, 50 trim or HE341/351?

[turbovanman²]

Building an 8 valve engine package for a customer, 2.5 5 speed Shadow, he wants 300 whp with room to grow to maybe 400 whp.

Not sure if you can get the 46 trim stage 1 Dodge pattern anymore so that might be a moot point.

He wanted an S60 turbo but then he's limited.

I am pretty sure on what turbo, just want to get a 2nd opinion,

TIA.

[bakes]

He341 for the street/strip he351 for the track
nothing wrong with a prepared S60

[turbovanman²]

Agreed on the S60 but he can't really get alot more out of it.

[Vigo]

If he wants 400whp potential i probably wouldnt pick a stock stg1 turbine.

[GLHNSLHT2]

46trim with a ATP or Shadow SV?

[Shadow]

In a nutshell, the 46 trim will max out at 400ish WHP IF everything is optimised and working Right. That would be somewhere north of 30psi. The 50 trim will get you 400WHP with some room to breath as well as the HY35/HE341. HE351 will just do it on slightly less boost than any of the above.

46 trim will by far be the most responsive, after that it's a crap shoot as to which turbo will respond better. I would have said 50 trim stage 2 or HE341, but very reputable ppl have told me that the HE351 on the Charger spools faster than a 50 trim stage 2. Guess it just depends on the overall set-up.

[turbovanman²]

I am doing it in stages so he can do the major stuff first, then get the rest up to snuff.

Starting with the turbo, some head work as its off anyhow, maybe my S60 cam, 3 bar, +40's.

Then upgrade the IC and exhaust, clutch etc.

Thanks guys.

[turbovanman²]

Back from the dead, we had decided on a 46 trim T0B4 cover, stage 1 and .63 housing from FWD, they were supposed to be a bolt on but I guess not, the elbow isn't cast correctly, so modifying is needed, so how would the same turbo be but a T04E be lag wise compared the B cover?

[black86glhs]

Wait a minute. It is a bolt on. It bolts to the manifold so it works. Just like in the 300 HP thread, right?

[cordes]

Wait a minute. It is a bolt on. It bolts to the manifold so it works. Just like in the 300 HP thread, right?

No, many of us were under the impression that it bolted on with no modifications. Then Todd stated that you need to modify it for the WGA, lower IC hose, etc.

[turbovanman²]

Wait a minute. It is a bolt on. It bolts to the manifold so it works. Just like in the 300 HP thread, right?

What cordes said, I can easily make two 90 deg elbows for the E cover vs cutting and welding the B cover to fit.

[Vigo]

The way i see it the only change that using the E cover can possibly make, is make it a tiny bit more efficient. Not something you'll ever be able to nail down unless you had a maxed out wheel and swapped covers back on forth on the dyno.

[black86glhs]

Ok, so it won't make enough difference tune wise to cause a lean condition and damage the engine? Not being a wise A$$ either. I suppose a stock head should flow too much more, but......

[Vigo]

I doubt it. Honestly though i think everyone should learn to let off when the wideband goes lean before they bother learning about the particulars of various compressor housings.

[turbovanman²]

I doubt it. Honestly though i think everyone should learn to let off when the wideband goes lean before they bother learning about the particulars of various compressor housings.

Why? Blown engines are fun,

True on the E and B covers, guess I'll do some more shopping.

[cordes]

The way i see it the only change that using the E cover can possibly make, is make it a tiny bit more efficient. Not something you'll ever be able to nail down unless you had a maxed out wheel and swapped covers back on forth on the dyno.

I noticed a huge difference in spool between a smaller E series wheel in a stock TII housing and a larger E wheel in its native housing. Compressor outlet temps are much lower too from what I've read. I'm sure that the B cover is still a compromise which effects both characteristics. To what extent, perhaps Todd would be able to give some real world info?

[glhs727]

Back from the dead, we had decided on a 46 trim T0B4 cover, stage 1 and .63 housing from FWD, they were supposed to be a bolt on but I guess not, the elbow isn't cast correctly, so modifying is needed, so how would the same turbo be but a T04E be lag wise compared the B cover?

it is a bolt on! We just put one on a 2.2 omni today! I'll post pics tomorrow if I can find my camera. Please post pictures of the cover and problem because I have not had issues, don't know why you would have an issue??

[cordes]

it is a bolt on! We just put one on a 2.2 omni today! I'll post pics tomorrow if I can find my camera. Please post pictures of the cover and problem because I have not had issues, don't know why you would have an issue??

Todd posted up about this in another thread. He had some pics. I'll try to find the link.

---------- Post added at 11:50 PM ---------- Previous post was at 11:48 PM ----------

It's on page two in this thread.

http://www.turbo-mopar.com/forums/sh...p?67317-300-hp

[glhs727]

Thanks... looked at it, and again, none of the issues seem like a big deal. I'm not using a stock intercooler hose or airbox, and most people using the bigger turbos have upgraded to a better FMIC and CAI anyways. I'll take a better look tomorrow at the one in the shop, and take some pictures of the outlet. With a 45 degree silicone hose off the outlet, I'm pretty sure it will clear the head just fine, (and since we are using a big FMIC and better 2.5" piping, having to get a stock hose on there doesn't matter.) I don't recall having any issues with the wga. We always provide a longer WGA arm with our wga's, so we had plenty of length. I'll look again to see if we had to finagle it to fit. And the first issue, having a bigger inlet, well that's not a problem, that's a BONUS!!! LOL

[cordes]

Thanks... looked at it, and again, none of the issues seem like a big deal. I'm not using a stock intercooler hose or airbox, and most people using the bigger turbos have upgraded to a better FMIC and CAI anyways. I'll take a better look tomorrow at the one in the shop, and take some pictures of the outlet. With a 45 degree silicone hose off the outlet, I'm pretty sure it will clear the head just fine, (and since we are using a big FMIC and better 2.5" piping, having to get a stock hose on there doesn't matter.) I don't recall having any issues with the wga. We always provide a longer WGA arm with our wga's, so we had plenty of length. I'll look again to see if we had to finagle it to fit. And the fist issue, having a bigger inlet, well that's not a problem, that's a BONUS!!! LOL

For the vast majority of us that's 100% true. There are a few folks who want a 100% bolt on turbo though and I can understand that. Something that doesn't have to be run for all it's worth to hit 320WHP would be nice in a 100% bolt on turbo, but I know that's asking a whole lot. Especially out of the air inlet, and IC piping if I had to guess.