Making the switch on a 565. What safety gear is needed supercharger wise. Belt Guard, Restraints, etc?

aluminum studs.... but I doubt anyone will care unless your going to nhra

Burst panel, belt guard to protect fuel lines anywhere they cross the path of the blower belt.

My suggestion would be to get the replaceable blower straps..this way when the straps expire you dont have to pull everything off to replace them..I think rbs and good vibrations have the kit. think the strap certs are only good for 2 years

Just put my TBS 250 on a month or so ago.

no blower straps (don't feel like removing those when i need to set valves)
no burst panel (manifold which is supplied in the kit, doesn't have provisions for it)
steel studs (came in the kit)
no blower belt guard (why would i at this point)

I don't run anything NHRA nor will i ever.

With the baby 250 blower only producing 2-4 lbs of boost in bracket mode I don't think you need to worry much about it going boom

Just make sure that there are no competitors that will DQ you if you don't follow the rules!

Big Steve, does 2-4 pounds of boost make a lot of difference in MPH and ET with a 540ci,1950 pound dragster that normally runs 4.80's?
Thanks

quote:

Originally posted by M120:
Just make sure that there are no competitors that will DQ you if you don't follow the rules!

Big Steve, does 2-4 pounds of boost make a lot of difference in MPH and ET with a 540ci,1950 pound dragster that normally runs 4.80's?
Thanks

I have no idea. From what I hear this 250 blower is all the rage in bracket racing, most are running in the 4.30-40 range with very low boost bolting them on like 582 and 598 brackets motors,
Message Chri Gulliti "TORQIN" on here, he runs one and I bet it can answer your question better then I can since I run high boost in TD

quote:

Originally posted by M120:
Just make sure that there are no competitors that will DQ you if you don't follow the rules!

Big Steve, does 2-4 pounds of boost make a lot of difference in MPH and ET with a 540ci,1950 pound dragster that normally runs 4.80's?
Thanks

I know on a 582, with only 3lbs of boost went from 4.80's to 4.50's

A dual carb 250TBS on a 598 at 2750bs went from 5.20's to 4.80s' with 5lbs of boost.

quote:

I know on a 582, with only 3lbs of boost went from 4.80's to 4.50's

Great ratio for index racing!

this a 565 with dart 355 heads. Ran 5.30s at 2500ish in a door car with a alky carb. going in a 2000 pound(before blower) dragster but going to run a terminator.

Looks like I need a belt guard and restraints but not sure.

Since we're talking baby blowers, whats the thought behind the odd looking , turned up collectors i,ve seen on headers on these engines?

Intake atmosphere consistency.

Anyone know how much the tbs250 weights. Trying to see estimate how much more the car will weigh?

How much compression can someone run with one of those ? Baby blowers.

quote:

Originally posted by Goob:
Intake atmosphere consistency.

Can you explain by what you meant by "Intake atmosphere consistency" I have been looking a adding some of these turn out to my car, but for a different reason........I think!

quote:

Originally posted by BG7X77:
How much compression can someone run with one of those ? Baby blowers.

they can go on anything up to 15 to 1.

Shipping weight on my TBS kit was 125 lbs.

Not sure who's seeing 2-4 psi of boost, but off the bat mine was showing 7-9 psi with a 33 top pulley and 67 bottom pulley on a 598 with an Enderle hat. 7300 shift point. That's using the simple gage they sell at alkydigger where it holds the pressure till you release it, had someone reset it on the starting line after the burn out. No data acquisition system on this car.

From what i understand, most folks are ordering the 64 bottom pulley when they purchase the kit. I figured while I was buying I'd buy the biggest bottom pulley i could. I have not tried the 31 or the 29 top pulleys, just don't think i'm going to need them at this point in time.

Best ET to date is 4.45 at 155. My guess on the weight of the car is 2100 lbs with driver on starting line, it was 2000 lbs with me before the blower (on scales).

I have blower restraints as well as a belt guard. I ran the 250 blower on my 300 run old 540 last year at the end of the year went from high 4.90’s. Most of the year to 4.60’s @ around 2000lbs ,guessed I was making about 1125HP with it acquired a few more parts and pieces dropped compression from 13-1 to 12-7 with head gasket change and here are the dyno numbers
541 Dyno Numbers

Naturally Aspirated
936.2 HP
747.1 torque

Blown 1250 Carb/Buffco top
1st pull 3# Boost
6800 RPM 39 Pulley 1250 Carb
1157/957
30 degrees timing

7500 RPM
39 Pulley 1250 Carb 3# Boost
1207/957
30 Degrees Timing

37 Pulley 1250 Carb 4# Boost
1245/981
30 Degrees Timing

35 Pulley 1250 Carb 5# Boost
1289/1021
30 Degrees timing

35 Pulley 1450 Carb 5# Boost
1302/1034
30 Degrees Timing

This message has been edited. Last edited by: Blake4128,