Dude, run the t70. The people who had issues most likely bought a cheap turbo with MP housings. I have about 1k miles on my MP you sold me at 10psi. Recently bumped up to 15 and it pulls hard all the way to redline. Are you going to run alki? I would be more worried about the tune or a bad batch of gas fouling the motor than the MP. If the T70 goes its not going to take your motor with it. Its usually the other way around. I say run the T70.

 

Ahh you're the one that I sold the t61 too. Nice! Glad to see it's working out for you. So how does it feel at 15psi? I bet it's a fun turbo that spools pretty quick. Nice to see it's doing good for you. I'm not quite sure what I'm going to do with the mpt70. I know it's giving me a damn ulcer though, rofl. I'm leaning strongly to giving it a shot though. Turbos I've had so far that I haven't used consist of a bnr stage IV, masterpower t61, and soon to be masterpower t70 if I just don't buckle down and make a freakin' decision. Of course the older I get the clearer I see my lack of ability to make decisions is one of my major character flaws amongst many others

 

Man, as I said, I'd run it. The build it once methodology is GREAT, but the problem for you is its already been built

My reasoning for thinking that way? I've got a laundry list of weird failures and problems. Its been my experience that you can plan, buy the best, follow the "rules" of a proper build and things can still go wrong leaving you either stranded 4000kms from home in another country in need of an engine rebuild, or just down the street with a failed FPR. But until things get shaken down and ran, you'll never know - and no one will be able to predict - precisely what may or will fail on any setup. What you have is working now, if the turbo ***** out on you in a year and you need to buy another one + retune, consider yourself lucky that nothing else went wrong!!

I hate breaking things as much as the next guy don't get me wrong though - but I think you see my point

 

The T61 is good, I get 15psi at around 4.5k. I wish I could boost more but my engine is bone stock. Get your car running already! Have it tuned on the T70 and enjoy all next season with it. Over the winter if you want another turbo, go for it. I am happy at 15psi and wish I could spool faster. When the time comes, I'll port the engine and tune it for 20psi on the T61. The option of a bigger turbo later down the road is always nice to have.

I understand what your saying about the larger shaft and using the 2-step feature. I say break the shaft and go from there! Let the turbo maqke the decision for you. If you upgrade, you only have to change the WOT map. The easiest of all.

 

True, and really in my case it's already been "built" several different times using several different turbos I never ran, this is where the problem lies with me. When am I just going to say enough is enough and run the freakin' car already, lol. I just know that I have two cheap parts that I've been this turbo setup with. The first being the ssacrap manifold (though ceramic coated, wrapped, and braced) and the turbo. The manifold I never really thought was a big deal being that I can get a log style manifold at any point in the game if this one decides to do what so many other ones do and crap out on me. The turbo on the other hand is a different story all together. Because if the turbo craps out (which it's very possible it may not) then, like I've said, I have to bring my car back to Florida to have kilo retune. This is tough because I don't have a truck so one needs to be rented, I don't have a car dolly so one would have to be rented, the gas to get down there is a bit better than when I went last time when it was almost 4 bucks a gallon so I guess I have that going for me but usually in the end I end up spending quite a bit of money getting the car down there, having it tuned, and then bringing it back.

But I guess you gotta pay to play, although if I spend this money up front I may not have to pay again for a little while.... or I may, who knows...

Maybe I'll just run the damn t70

 

Man the problem with letting the turbo make the decision for me is that it could potentially be a very costly decision. I'm really truly thinking about getting one of these for 275 shipped.



Which would be a **** ton more reliable than the ssautocraper and then get the s366 which would be a more reliable turbo when using the 2-step feature going down the track. I could keep this setup for multiple seasons without worrying about the shaft etc... when beating on the turbo.

Of course I would have to sell the manifold, tial wastegate (unless I had an adapter made), and the turbo. I should get in the neighborhood of 750-800 for the setup which would help out a bit in the transition from average turbo setup with a question of track reliability to a proven setup with no questions about track reliability. The cost would be 1200 for turbo, 275 for manifold, and whatever the cost would be for an hks 40+mm wastegate. Of course I couldn't change those parts out here because the car is over there so I would have to pay kilo to do it. Also depending on the placement of the new wastegate I may have to pay for a bit of stainless steel line.

 

Here is the BWS362 used in another build and the BWS366 is the same basic turbo except for which turbine wheel option you want and of course the different compressor wheel. They are the same price... BTW, you can get the units for around 830-900 bucks. If your paying more then that, your getting marketing fees..lol. The units are marketed as custom units, but come straight from BW as box units. If you need any BW part #'s let me know, I got a nice BW database and have helped several guys on this board save alot of money now that they are informed.
https://www.rx7club.com/showpost.php...9&postcount=49

https://www.rx7club.com/single-turbo-rx-7s-23/new-build-going-single-791170/


As for the MP T-70, I don't believe its even a true 70mm wheel?? Can anyone confirm this?? I understood its really only just a 67mm P-trim clone from Master Power.

 

Thanks for the info, maybe some people paying for marketing fees and other people knowing how to get around them is why I see such sporadic pricing of those turbo on ebay. I'll see one guy (with 100% feedback) sell a brand new borg warner s480 for 850 and then a guy sell a brand new s366 for 1250 which "retails" for 1500-1600. Back in the day when I was looking for these turbos I was doing so because they where reliable and a good price but now I can only say they are reliable

The masterpower turbo's minor compressor wheel diameter is close to a t66 but the major is a t70. So yeah they aren't exactly a t70 but they still can make over 500 on a rotary.

Thanks for the link, I'll take a look at em' right now.

edit: just for ***** and giggles do you have the s366's part number?

 

As cool as the 2-step sounds when your waiting for the light to turn green I think your overrating its potential. I would use the T70 to learn to get the best 1/4 miles times possible. Perfect your launches, your drivetrain and suspension. I guarantee you when it comes down to it these 3 issues will be more important than the 2-step. Start making some runs, get that car racing. Perfect your skills, when you can run consistent times with no carnage, missed gears, or excessive wheel spin than worry about the 2-step.

 

Which turbine wheel do you want for the 366 and which A/R??? I would suggest the big 80mm turbine wheel and probably something in the .8 to .9A/R. Let me know and I will get you the part #.

 

actually you got it backwards, the MP T70 has a 69.5mm inducer which is t70 territory but the exducer is only like 94mm if i remember correctly which is similar to a T66.

either way it's the jam

 

Thanks man. I was looking for the larger diameter wheel on the turbine side and I believe the one quoted to me was a .8x I believe he even said a ".8 something" rofl. I've seen it in both .83 and a .91 I beileve but I could be mistaken.

 

Ive measured the T70 wheel.

The compressor wheel: 2.720" minor (T70) and 3.584" major (T66)

 

I knew it was one of those. I think I'm going to go ahead and stick with the masterpower. I keep flippen’ back and forth but when end of the year expenses keep adding up, my expenses start leading my decision the most. Good ole' taxes on the house just doubled so now I gotta come up with a bunch of money before the end of the year... Anways thanks to everyone that reiterated the legitimacy of these Masterpower turbos. I'll let you guys know how it goes.

 

S W E E T ! ! !

Rock the fug out and get some numbers!!!!! WOOHOOOOO!

 

keep it!! we need more t70's out there. i bought my t70 with out knowing exactly what it was i only knew it was a t70 until i read up on people making up to 500 to the weels so i pretty much thought theyre good enough, but cant wait till i try mines, so ill see if i get that lucky with this turbo...

 

Rofl, you and Slammedblk7 are my inspiration and one of the biggest reasons I'm sticking with the Masterpower turbo (at least for now) I'm hoping I have the same luck with the turbo as you guys did!


To the rest that helped me with the decision thanks a bunch! I'll let you guys know what kind of power it makes as soon as it's tuned!

 

Keep it. My MPt70 is still alive and kickn. just ran mu buddys 590whp cobra...yes of course i did... mpt70 FTW!

 

Is that a yes of course I did... win Nice to see it's still kickin'. I'm feeling better and better about my decision all the time. THanks guys!

 

UPDATE!!! i read you were getting tuned this week? what's up?!?!?!

 

how well would the .91 a/r flow up top with the larger 80mm turbine wheel?

 

grrrrrrr I didn't hear back from kilo this week so I'm guessing it will be sometime early next If I had a dollar for everytime this project didn't meet deadline I would have a 7 second rotary by now I promise I'll update as soon as he calls me.

 

it's cool man, these never go as quick as planned!!! hahaha

 

Well I heard from him I don't have dyno results but I can say that Kilo from Kilo Racing thought the little t70 creation was impressive He said it felt like his three rotor, so I gotta say I can't wait to give it a try. I don't think the numbers are spectacular as of right now, but judging from other people experiences with the t70 and half bridge combo, I'm willing to bet that the car right now at 18psi is putting down somewhere between 450-480 + or -. When I go there to get it after the 1st, I'll bring slicks with me and depending on what I think, we will bump it up to somewhere around 20-22psi.

But anyways I'm absolutely positively glad I'm going to test out this masterpower turbo. From what Kilo says, it's a beast!

 

I TOLD YOU SO!!!!! muhuhuahahhaaaaa that is great news buddy! see you could have been sitting and waiting on more parts and stuff but you stuck with your guns and now you will actually get to enjoy the car!!!!

i'm happy for you bro!