S300G or HX40?

[peobryant]

I'm in the market for a new turbo right now, and don't want to buy more than one.

So, with marine 370's, a DennyT pin, fuel screw tampered with and 4" straight pipe, what would be a better choice, the "baby" S300 or an HX40?

I believe Richie told me the S300G will actually flow more than an HX40, despite it being a 57/65/14 as opposed to a 60/65/16, can anyone verify this? Also, anyone running a setup similar to mine with either of these turbo's, what do you think of them and what are you EGT's?

The inly HX40 I have ssen is around $1100, and I know I can get an S300G for cheaper than that so...

Any thoughts or opinions are appreciated,

Thanks

[Richie O]

Philip can give you info on the HX40. I think his model can hold its own against my baby S300. If I had it to do over again I would go S300 again. I am happy with it. I have never had a HX40. If I did I bet I would like that too. I lean twords the 300 due to the shaft is a little more stout. Im pretty hard on turbos. I jump on and off the juice pretty hard. BARKY, BARKY

[gear jammer 91"]

I'm runnin an HX-40 I bought from PDR, it was around $800 8 months ago. I'm happy with it, spools good, good boost 40 psi, and it brought my egt's down about 300 degrees. If I was buying a turbo again I would probably buy a custom s300 so that I didn't have to worry about barking the turbo. I also think you could get a custom s300 that could out perform an HX-40, but I don't know that for sure. I went with the HX-40 because I had heard it would work good with a similar set up to mine, and because of the price. I don't regret buying it, I just might have to upgrade someday when I buy injectors.

[GO OVRIT]

Mine cooled 435s with no problem. Its a PDR unit and spools pretty quick. I've done a good bit of towing with it with no trouble.

[Philip]

Your running an auto. Eather turbo will do fine for you. As far as the small S300's flowing more air. I have no idea. All I see is what they list on the turbo sites. The smaller S300's are rated to around 350HP or so. The Super 40's are rated to around 425 to 475. Your guess is as good as mine if the HP rating are even worth reading.

The 40's you can find map charts for them. The S300's if you ask a turbo company for a map chart all the tell you is swister doesn't rate their turbo's the same. If you ask them what kind of flow in CFM it does have. Then they start saying well it depends on your engine setup and so on. Never any direct answers that are worth while.

So about all I could say is read everyones posts about different turbo's. Then look at the wallet. That is the bottom line. If the wallet says I can't afford the S300 then its time for a 40.

[peobryant]

The only HX40's I found were around $1100 from PDR. HTT says they are out of stock and won't be restocking.

I'm leaning more towards the baby S300 right now, and it won't hurt the wallet as bad. Richie, what are your EGT's on a hard pull?

[Richie O]

Its hot. With just the truck its ok due to its going fast pretty quick. No way could I tow with a heavy foot. With the timing 3/16ths advanced it is 1400 to 1450. At my current settings I am at 297 hp. I must be close to maxed fuel screw with the 4X12 factory non i/c sticks.

[peobryant]

Hmm. so with the fuel screw to the collar and a little bump in timing I should be able to keep it cool enough. I never tow anything, so that doesn't matter.

Thanks for the responses everyone.

[soggy]

you could get a bullseye power s362 which is basically a custom s300, its a 62/68, not sure on the exhaust housing,
anyways they run from $1150 to 1400 or so depending where you look.
Anyone running one?

[peobryant]

Another question.

I can get a 62/65/14 for $200 more than a 57/65/14. Would that be enough air for my mods? Seems to be a pretty good deal to me.

Do the "Phatshaft" turbos have a pretty good reputation?

[oldcool90]

Im running a 62/70 phat shaft with a 12cm wastgated housing. It replaced my hx/35 with a 16cm housing.I havent run it long yet but it spools twice as fast as the 35,and it clears up all the smoke now.Seat of the pants feel is much better now,egt's at crusing speed is about the same,but at wide open they are better and slower to rise.I made 350hp with my hx/ 35 so if i can get to 400hp with this charger i will be happy for now