orange88

iTrader: (1)

Ok I Bought 2 Master Power T-70's With .68a/r Housing Is This To Big For A 5.7 With 8.5 Compression And A Turbo Cam?

2000 Tran Zam

iTrader: (2)

What size is the cam? is this in a 346 im assuming?

Its quite possible it might be too big, even with the a/r ratio, I guess it just depends on how much spool you like.

orange88

iTrader: (1)

its on the motor in the pic a 350 gen 1, i havent got a cam made yet but i want 1000hp so i figured it would work

Wet 1

iTrader: (4)

You're going to have a lot of lag! I'd guess you're going to be on the wrong side of the surge line for much of the powerband. Unless you're planning on spinning that thing to 9k rpm, I'd say to large.

orange88

iTrader: (1)

i guess il put them on and try them if they dont work ill just get somthing smaller

Wet 1

iTrader: (4)

If they don't workout for you and you want to sell them, shoot me a PM... I might be interested in them.

orange88

iTrader: (1)

what size do you have

Wet 1

iTrader: (4)

427 and I still think those compressors are a little large for my usage.

orange88

iTrader: (1)

Which Housings?

hellbents10

iTrader: (10)

I do not htink the exhaust wheel in those is too hard to spin. You will be ok, it will be laggy but not bad with the right converter. I would say peak boost should come on by 5000rpm. Thats not bad with a loose converter and a cam that will cary you to 7k or so.

orange88

iTrader: (1)

I Have A 6 Speed With 3.42 Gears

Wet 1

iTrader: (4)

I think you misunderstood me. I don't have a set of turbos yet for the 427, that's why I said PM me if you decide they are to large for your application. I do believe based on a lot of research and past experience with turbo vehicles that these turbos will still be to large for my 427. I agree with ^, you won't see full boost until 5000 rpm or IMO >5000 rpm with a 350. You're going to need to spin that baby to the moon to get those turbos to spin where they need to be!

I've considered the MP T-70's for the 427, but I still think they are too big. I wish MP would produce something a hair smaller... they make nice turbos for the $.

2000 Tran Zam

iTrader: (2)

I guess your prob gonna stick with t66's then?

Wet 1

iTrader: (4)

That's what I'm thinking. Like I said above, I wish MP made something along the lines of the T66, that would save me a lot of money! Oh well, I guess I'd rather spend a little more money up front and be happy later... I'd be pissed if I had to 'wait' until 5k rpm for my turbos to spool!

turbocuda

They do....a pair of t-61's....61mm inducer 3.58 exducer....68ar p-trim turbine....on a 408 sb mopar.

turbocuda

Pic...

orange88

iTrader: (1)

i guess when i ordered them i wanted the compresser side big to keep things cool i was just wondering if the other side was way to out of line

Wet 1

iTrader: (4)

Yeah, I was thinking the 61's would be a bit small for my application. The t66's are a perfect fit for me based on the maps.

BTW, nice looking project... keep us posted!

Wet 1

iTrader: (4)

The hot side should be fine. I believe those are P-trim wheels on a .68a/r. Your problem is really going to be the cold side. The compressor side is way to big. You're going to be way over to the left on the map (surge line), unless you can spin the **** out of the motor. You certainly won't have any hot IAT issues!

What are your goals with this engine (boost and rpm)? I'm thinking the 61's that cuda mentioned would likely be a good fit for you.

srblacks13

Autocross cars dont do well when you wont have peak power until 5500, sorry