1BADFNZ

I'm looking at going FI and like the ATI setups. My understanding is that on a stock 346 shortblock 7 psi is safe. Which would be better for me the P1SC or the D1SC

MEAN LT1

iTrader: (2)

Go ahad and put the D1sc on and dont look back, it gives you plenty of room to upgrade if you decide you want more boost. Overall a good blower for the money.

Crunch

This is directly from ATI ProCharger. Compare for yourself.
http://www.procharger.com/models.shtml

1BADFNZ

cool, but can a stock block stand up to 8 psi???

Ed Blown Vert

iTrader: (2)

I guess I still don't understand why anyone would need the D, unless you are building a race car.

Wouldn't the P be enough for a street car?

kp

iTrader: (34)

If you are buying new its a better investment to buy a D1SC IMO, when I bought this one I was planning on just keeping the M6 and a stock rear and driving the car. But as you can see my plans have somewhat changed and I wish I had the bigger blower. Its not going to hurt anything (maybe low-mid range might suffer a tiny bit on a stock motor compared to a P1) and its an easier sell down the road.

On the other hand if I found a deal on a used P1SC system I wouldnt pass it up unless you were planning to do a big inch heads/cam engine, but if you were planning that that I would just go to an F1 right off..

1BADFNZ

Currently I'm not planning on going big inches... might do a forged setup later and go ahead and stroke it to 382 or so but that's it.

Yup gonna buy a new one... don't want the chance with used one

kp

iTrader: (34)

If you are buying new just buy the D1, its like 250 more now or a thousand dollars more down the road if you need a little more.

Ed Blown Vert

iTrader: (2)

Has anyone ever pushed the P to the limit?

BIGBOS

If I had to do it all over again, I would of got an F1 from the start, thats just my prefrence for what I want to do, but I would for sure buy the D-1SC kit, it will take you pretty far.....

I'm going to be putting mine to the test pretty soon, Kyle (NASTY TA) should have some dyno results tomorrow on his 370 D-1SC setup, so its going to give me an idea of where I will be power wise.....

Slow98TA

While we're on the topic...how long would a 346 last with a heads/cam set-up and 14psi? Assuming I changed the crank/pistons etc...would it last a while? Or, be a ticking timebomb? The car is a street car...it may see the track every once in a blue moon, most of it's terrorizing is done on the street.

Fierce-LS1

iTrader: (3)

Do you guys know if the F1 is louder than the d1 ?
Would it be too much for a stock cubed engine ?

BIGBOS

F1 is louder than the D1, and no its not too much for the stock cubed motor, if built it would be a 348c.i

F1 is good for pushing some boost through it, 14psi would be good enough for it, a D-1SC can handle it as well, the intercoolers become the main restriction at that power level......

You can build a 8.5:1 compression motor and get away with running pump gas with 14psi.....and it will last all day long with a GOOD tune

Fierce-LS1

iTrader: (3)

Thanks for the reply BIGBOS,
If I don't have the cash to build my stock motor now, would it be ok to run the F1 with only 8 pounds of boost ? I plan on having the Griffin FMIC at the same time.

So would this combo be analogous to having a huge HP car but never taking it above 3000 RPMS ?

BIGBOS

You could get an F1 if you are planning on running more boost in the future on a built motor, it will do fine on a stock motor with 8lbs of boost, especially with the FMIC, It will make some good power on a good tune.....

Then in the future when you build up the motor, you change the blower pulley and away you go.......running big boost w/the ATI kits is still under R&D by me, frcefed98, and NASTY-TA.....

ScottWS6 is so far the only one I've seen successfully push 15psi on an ATI setup with the stock tensioner.......his pulleys were machined bigger so that could be a key factor as well

Fierce-LS1

iTrader: (3)

Yup I have a decision to make in the next few days. To go with Scott's F1 or with a used P1SC (6rib). That's why I had the questions about the F1. So even at 8 pounds of boost, the F1 is louder than the P1SC
To me, the P1SC was pretty loud at only 5 PSI.

What would you guys do if you were in my boat ?
1) Pick up a P1SC kit
2) Go with the F1

The difference is about $1200 since I was going to get injectors with the P1SC kit.

BIGBOS

F1 for sure, I heard that Scott sold his car?

Fierce-LS1

iTrader: (3)

Last time I heard from him, he was taking off the parts since most people were interested in them. I thought he was going back to stock and then selling the car.

Who knows, maybe you can chime in Scott ?

Slow98TA

This may sound like a stupid question, but would all of the blower equipment be able to tuck away under a stock ls1 t/a hood? Or, would you have to step up to like a ws6 hood for extra clearance?

Would prefer to keep stock hood..not too many people would think twice about a "stock" appearing Trans Am on the highway, with just a little lowering and some fm10's setting it off.

HUGGER ORANGE SS

iTrader: (2)

I'm pushing my P-1SC-1 to the Max. At 6500 engine rpms the blower is spinning 64,500 impeller rpms. In the hot summer months Im seeing 10 psi of boost.. 11 durring the winter. Next step F-1 for me.

Clint