Quote:
Originally Posted by
Randy@ddmworks
To the engine...it's just boost. GM would not have produced over a million vehicles(GTPs, MCSS, Regal GS, Impala SS, Bonneville SSEIs, Cobalts SS, Ion redlines) with an eaton superchargers, if they were too hard on an engine. The V6 3800 came from the factory with 8psi and NO intercooler...the 4-bangers get 12psi and a W2A i/C. The only longevity downfall of a supercharger (Positive displacement & Centrifugal) is the front main bearing sees a little more wear due to the increase in belt loading from the S/C. When I cracked open my 3800 on the GTP with 160k...I saw no increase in wear...I I was spinning that Eaton 90 twice as fast as factory(19,000 rpm & 15 PSI)
Today's PD blowers are self contained and need no adjustments, the internal oil system is good for 100k. The integrated bypass valve keeps the boost off until you drop the hammer. At cruise the blower draw 1/3 of a HP off the crank. Under boost, it does take power to turn the blower...how much depends on too many factors to discuss here.
Turbo's are great...Their fun, they make tons of power. If used properly, they are safe. But contrary to what someone mention earlier, they do not give you "free or recycled" power...They are a restriction to exhaust flow and cylinder scavaging...this also robs power. They generate significant amounts of under the hood heat, this has it's own problems from many different things from melted parts, to cracking/ loosening manifolds. Depending on models, you have oil and /or water system that are tied to the motor and both affect performance and maintenance. Improper shutdowns and or inferior grades of motor oil can cause coking. But then those are some of the things you have to deal with with a turbo motor, especially high performance units.
Basic and simple...the kits I've seen are decent units...some better that other, but that is each owners opinion. life is about compromise and trade-offs...it's the same thing here.
i love your posts !...
... i hate seeing too many factors to discuss here ...
as one of my most respected and knowledgeable guys ......... too many factors to discuss is always a bummer........this is how we learn.... ok fine it only draws 1/3 hp
while you are not using it..lol...
.. but under boost draws what 20-30-40 hp and. thats what i meant needs to make more to break even.......of course too many factors to discuss can be the range of 20-40 hp cost right ?..you could have stated that ..... you have unfair advantage - i don't have the knowledge you have
i'm just saying to state draws a third of a hp when not in use and not mention your guesstimate of the expotential multiplication of that number under boost .....sorta unfairly makes me sound like i was wrong...
no worries - its like that huh?...lol... 
..fair is fair i don't see any turbo guys or turbo vendors speaking up...
awww don't make me beg.. hahahaha......
..just the woman building her own....
now thats funny..... hilarious....mind boggling nuts
it may escape the rest >> omit an obviously paramount detail (the power the blower uses under boost )..... and dismiss me .....call me the "someone said".....
FINE !!!.... .lecture on oh wise and experienced one !..... i still love you..... and okra is a live one- get that sale !...... for me this is just fun..........i was just raggin scoobie....
if i had it to do over ddm is a no brainer........ least ways for okra goals.......
feel free to tell us how the intercooled sc uprade is coming...... and how an ic is advantageous to a sc , since you allude sc doesn't have a turbos heat disadvantage........
yes an intercooler = cooler denser air = more........in the air/fuel/spark equation but if a sc doesn't generate heat ???........... yuh lost me........ and i'm not arguing i just didn't understand...........sounds like a contradiction....... tho i'm sure my grasp is still better than scoobies....... expand on that for all of us..... i doubt i'm the only one
when it comes to my comment - everybody knows turbos are better than a sc....hahahaha........ he was "asking for it" with the better dd and less maintenance malarkey.....
i gotta tell yuh i was just jerking scoobies chain.... ( and had him )......maybe snagged you too ..lol...-> million eatons by gm ....hahahahaha had yuh going !!...please don't spazz over me calling yuh...... on the blower ..lol... i appreciate your passion for your preference and it was an honest answer......
no fair you answering for scoobiedoo..lol... wheres my turbo guys .....
( too bad werks,rpi, hahn don't participate on the level of DDM ) it'd make for lively debate ....... again kudos for ddm.......
okra is looking for a product and you - ddm are here to answer questions ....i doubt the significance is lost....... i wonder if he realises the value of that......
thats big
if anything i say draws you into sharing info.....educating us ...
thanks randy