T/A KID

iTrader: (12)

Guys I am trying to figure in how hard I need to spend my D1sc and I would like to see how hard everyone else spins their Blowers. Also list your type of intercooler as well wether its air-to-water, Twin high flows, FMIC, etc.

On my particular setup this is what I came up with

Using a 7.625 Crank Pulley with a 3.2 Blower pulley
61548 at 6300 RPM
60571 at 6200
59594 at 6100
58617 at 6000
57640 at 5900

Using a 7.50 Crank Pulley with a 3.2 Blower pulley
60539 at 6300
59578 at 6200
58617 at 6100
57656 at 6000
56695 at 5900

This is what I came up with once I done some math. I have a D1SC, SDCE 8rib setup, 4inch thick OBX FMIC, Vortech Mondo Bypass valve, and a 3.2 Blower pulley and I am wanting to keep the revs in the 6200 range mostly but if the blower generates too much heat for this STREET car I can back it down to 5900 or so and still make the power I want.
You guys give me your opinion on which Crank pulley to go with and give me some specs on how hard you guys spin your Blowers.

I am leaning toward the 7.50 Crank pulley since I can almost max the blower out at 6300 and yet back it down to 5900 and keep heat down that the Blower generates.

Blownramair

my blower is just under redline on the d1sc... griffin fmic... a2a i/c... sdce setup aswell... i have a 7.25inch crank pulley and 3.7in blower pulley... i see 16-18psi w/ no belt issues unless i peg the rev limiter...

J

T/A KID

iTrader: (12)

Nice setup, how big is that intercooler of your and where do you shift at??
I am guessing this is not on a 408 since you are seeing 16-18lbs, and BTW is that on Pump gas????

Cyborg

iTrader: (8)

7.625 crank pulley, 3.4 blower pulley, 6500 RPM redline= 92% of max blower speed on my P1SC-1. I shift at 6300 RPM though. 3" OBX. ~9.5psi

T/A KID

iTrader: (12)

With your P1SC at 6500 with that combo your spinning the blower to 59766 our of the available 60000 if I am correct with the specs of the P1 Blower.

Blownramair

it's a griffin 4"fmic, very big ( i dont know the exact measurements, but i can get them for you if you PM me )... I am shifting around 7000, redline is 7300... I see that boost on a w2w ls6 full race engine 346cid... I use MS109 unleaded...

J

Cyborg

iTrader: (8)

A P-1SC max is 62,000. I have a P-1SC-1 which has a max blower speed of 65,000 RPM.

kp

iTrader: (34)

7.25 crank and 3.7 blower here with an SDCE.

I shift @ 67-6800rpm, seeing 13-14psi with a 346 @ 3000' or so elevation. I have a 4" OBX A2A on the car now and it rises up around 24 degrees on an 1/8 mile pass. With the the 3.4" blower pulley I picked up around 2psi but rises up around 35 degrees on an 1/8 mile pass.

T/A KID

iTrader: (12)

Kp so your spinning it to around 54000 or so with the 3.7 pulley is that when you ran the 9.48 pass?? With a 3.4 Pulley your spinning it to about 59000, and thats about what I would be looking at reving to 6200 Rpm.
Let me ask you this Kevin have you only tried the 3.4 pulley in 90+degree weather???

kp

iTrader: (34)

Thats all I spin it to, I ran the 3.4 pulley in 85 degree weather.

The 9.48 (6.04 @ 114.8 1/8 mile) was on a 55 degree day at a 500' track (like 50' DA) so that was some exceptional weather for around here. But it was with the 3.7 pulley and the z06 cam.

I ran the 3.4 on like a 85 degree day at a 1700' track, boost was about the same as the 9.48 passes but the car barely made 115mph once, then I swapped back to the 3.7 and ran about the same the next weekend so the 3.4 was pretty much a wash even though it showed a couple more PSI boost.

I swapped cams but added about 100lbs with the cage and full size battery in the back and with the 3.7 pulley I am running 118 now in the heat. I may try the 3.4 when it cools off a little more but the IATs really dictate how this thing will run for the most part and the 3.4 heats things up a bunch quicker..

DeltaT

iTrader: (5)

My blower was too small for my 383 the day I strapped it on - just took a while to find out. It's a Vortech V-2 SQ S-trim. With a 7" crank pulley and a 3.12" blower pulley, at 6200rpm I am at max rated blower rpm (50000). I usually go over that some and shift at 6500. Vortech said unofficially that an occasional, modest (<10%) over-rev wouldn't hurt it.

I have a Bell intercooler, core size 23Wx6Tx4.5Deep, with 34 hot air downchannels. After a one mile highway pull I'm like 24 degrees above ambient.

I need to upgrade to the T-trim.

Jim

My Site: http://home.mindspring.com/~jim_fisk/id1.html

T/A KID

iTrader: (12)

Kp I live in about the same Geographic region as you (Northeast Arkansas, about and 1.5 hours from Memphis) so our weather is probably very similiar.
I like the specs to your new camshaft, 222/228 on a 115LSA a little less Overlap compared to the 01 Z06 cam but it seemed to work out find for you . I plan on running a Similiar setup a 224/230 on a 114/115 LSA and I hope to just run 918's with Stock replacement lifters, How is your Valvetrain configuration?? I know you run a TH400, but I think with a 4L80E you could drive it on the street too. I know you have daily streetable vehicles but you could drive it on the street and it runs mid 9's, lol.

Kp just want to tell you I look up to your car and it's badass . Hopefully when mine is done I hop to see Low 10's High 9's.

DeltaT what type of power you making with that Blower, also you run a Single plane intake correct, how do you like that with FI. I thought about going back to a Converted Single plane for this Procharged motor.

Ed Blown Vert

iTrader: (2)

I am pushing my P1 to the limit if it isn't slipping.

7.25 Crank Pulley with 3.0 Blower Pulley

63413 @ 6400

Z8'S

iTrader: (6)

I overspin my YSi a little bit
7.875 crank pulley 2.812 blower pulley this is cogged so no slip.
The car is shifted at 7400 rpm

kp

iTrader: (34)

I'm still using the original lifters, rocker arms and pushrods that came on the car stock. Sometimes you dont fix what isnt broke

If this was an XER cam I would probbaly run double springs but the XE cams are very easy on valvetrain parts. I'm not 100% sure if these are exactly the same as 918 springs, they are the ones that came on the dart heads (made by PSI) and they have titanium retainers.

4L80 would be OK I guess but its just more weight and complexity. Street driving isnt really that important at the moment but honestly it drives just fine with the TH400, 3.70 and 28" tires. Just have to keep it under 70mph on long trips

DeltaT

iTrader: (5)

It's making right around 740HP at the crank, 6250rpm. I have the Holley Vortech-style EFI manifold that I ported and matched, ported E-Tec 200 heads, long-rod forged 383. I am real happy with this setup - the plugs are very consistent in color through all 8. I wish I went with 3.23's instead of 3.73's! Chassis dyno soon...

Jim