82streetracer

iTrader: (1)

Im still waiting to upgrade my To4b,

I was going to go with a 60-1 (actually, I was going to use a borg warner s200, which is a cheaper copy)

Someone suggested that I get the 62-1 instead.

What are the differences.

Im running a 1.15 Ptrim divided, off a tubular manifold, on a stock s5 block with a Haltech. I want to run about 10-12 psi on the street, and maybe 20 tops on the track with race gas.

60-1 or 62-1 what would you use and why.

Beast From The East

Had this conversation with Cliff at Turbo Power. Was considering upgrading the 60-1 wheel that came standard with the 62-1. He said I'd get a bit more in the mid and top range with the 62-1. For the street I'd notice little difference.

If you've got the turbo apart or plan on running that 20 lbs a lot, then go 62-1. If the turbo is already put together then ask yourself if you really need the extra. It sounds like you've already got it apart (or plan on taking it apart), so get the 62-1. I'm going to get it if/when this one needs a rebuild, but wasn't ready to shell out another $400 right now.

Beast

82streetracer

iTrader: (1)

I only have the housings off, the turbo is still in one peice.

The stock .60 A/r compressor looks really small.

I doubt that I will be running 20 psi very often. as I dont race the car that much. Plus, this is in a First gen model "S" the LIGHTEST rx7 you can get.

My goal was to get close 400whp at 20psi (mainly for bragging rights) I would rather have more bottom end then more mid and high. Because the car is so light, I thing a wider powerband would be faster than a mid to high powerband.

If I can get a generic 62-1 I might go that path, but the Borg Warner S200 is only a $200 upgrade, vs a $400 60-1 or 62-1 upgrade from turbonetics ect.

$150FC

if you wanted bottom end, why did you go with the 1.15 a/r hotside?

82streetracer

iTrader: (1)

because it was cheap and divided like I wanted.

You can run a pretty large AR with a Ptrim, and Im looking for really "safe" HP on this engine and this should give lower backpressure and less general heat.

A 1.15 Ptrim with a .70 60-1 compressor is also the recommendation for a stockport 13b on Hitmans website. And he knows his ****.

$150FC

hm. interesting.

82streetracer

iTrader: (1)

it also lets me run a smaller, cheaper wastegate, like a tial 38 or racegate, instead of something rediculously expensive, like a HKS GT

$150FC

well, i just think if you are wanting low-end and thinking you're going to get it with a 1.15, you're mistaken. but, i don't know everything. we'll see

82streetracer

iTrader: (1)

Im not expecting a lot of low end torque.

In fact, Im counting on it. I like to road race and I though that if it spooled to fast, that I would just roast the tires exiting a corner at anything less than 50mph.

Although, that may still happen with this setup.

$150FC

what do you mean by that then? if you do not want lowend torque so you don't spin your tires...

82streetracer

iTrader: (1)

well, if the power comes on hard and all of a sudden, vs. it spread out more over the rpms, it would be easier to mantain traction.

Beast From The East

What tires and rear camber/toe are you running when racing? Seems a shame to have to detune the car if there's other equipment and setting you can use to help you harness the power..... I'm getting 17's shod with Proxes for the street, MT Streets on the stock wheels for drag, and maybe another set of 2 stock wheels to have 4 r-compound units for autocross or road racing.

I'm not an experienced racer yet, but learning. Just wondering what else can be done to help you whup-up on the competition!

Beast

82streetracer

iTrader: (1)

only a 205 right now, but im going with 225/50/r15s when the ones I have right now turn to carbon.

82streetracer

iTrader: (1)

anyone know of a generic equivilent to a 62-1

I am looking at a Borg Warner S200 instead of a 60-1

Turblown

iTrader: (12)

1.15 Ptrim is too larger for stock ports...

Turblown

iTrader: (12)

1.15 Ptrim is too larger for stock ports...

82streetracer

iTrader: (1)

http://www.hitman.hm/13BHints.htm

look at the bottom.

direct quote from hitmans website

If you really want some more power from your 13B engine , then the best way of doing it is to install a larger turbo. A good sized T04 turbo will add incredible amounts of power , and added reliability through reduced heat load. Look for a T04 with a P-Trim exhaust and 1.0 or 1.15 A/R , and a 60-1 compressor in an A/R 0.70 cover. Running the same amount of boost you should expect around 30% gains in power !

82streetracer

iTrader: (1)

if it turns out to be a catastrophic failure (which I doubt)

then Ill just have to port the motor, which I planned on doing eventually as a engineering project at my university.