ss400hp

Can it be done and would it produce a good amount of power to play with considering the engine was built right??? Anyone ever done this??? This is a carbureted 305, thanks...

about2break1128

i am lookin for a supercharger or turbo for my 305 too...i have a 305 H.O the L69...hopefully someone will help us!!!

Spectre

Theres a user called flirtn that has a roots blower on his 305, has somthn like 500 hp I think ?

A kit for a 350 should mount the same way on a 305 since externally, they're the same.

Tho maybe the stock pistons arnt to the task (assumtion)

Im sure forced induction users will shim in.

good luck

305q_ta86

iTrader: (1)

I'm also interested in boosting my LG4, but I was thinking more along the lines of nitrous..

Spectre

Nitrous motors are built with forged pistons

Too much boost and the stock cast pistons will shatter.

Hypers melt if my memory serves me right (with too much spray tho)

flrtin1

Yes it can be done, depending on what type of supercharger you are looking at you can have anywhere from 350-500+hp on a 305

To build a street 6-71 roots blown motor assuming you have a good block it can be done for $5-6k (not including assembly labor costs) thats from scoop to pan including heads and dress up parts

83 Crossfire TA

iTrader: (2)

Nope.

Forged pistons are softer and deform rather then breaking.

Cast pistons are fairly soft but not as tolerant of a beating.

Hypereutectic are the strongest, but also britlle, detonation will cause them to shatter.

They all melt in roughly the same temperature range

Damon

Roots blower on a carbureted motor is almost always the easiest way to go (although it may not be the best way to go, depending of what you're after). The carb sits on top and never sees boost, so it keeps metering fuel just like it always has. This really makes tuning a lot easier, especially for a novice with power adders.

I have a little Weiand 142 on the 383 in my Malibu (see sig, below). It's a blast to drive and installation was very simple. You will have more issues to contend with if you need to stay emissions-legal with a roots blower (EGR valve, most notably) but Weiand (owned by Holley) has versions of the kit that are more emissions-friendly than mine.

I beleive there's an article I wrote a while back about installing one of these blowers in this board's tech articles section.

AFBCamaro

It should definatly be fine. Ive done it with the 305 and 355 and 6-71 and with 142 mini blowers. They both felt about the same given same heads. Exept depending on what compression you chose the 305 will have a little less torque while not under boost. Roots blown motors are a riot to drive. For most street aplication you will be ok with stock bottom end, arp rod bolts and some cheap forged pistons.. shot for 8.5 true compression ratio. 30deg timing etc. I went lower with the 350, 7.6 compression and im running a little more boost than most "street" 6-71s run on the street due to low compression. Getting ready to go 10% overdriven soon. But must tie the frame together the car is starting to twist. :-)

PS visibility sucks! AHAHAHA get the 142 Mini Blower!

Spectre

thx for the correction