Emailed him the other day said hes making more in a month or two
and its a 2.5 outlet
thanks tho man
I Love My J ♡
thats the snout i need for my gen 3!
RIP silver car. You will be missed.
Mines a gen 3 right lol ive been led to believe so anyway and ima go with a pulley boys 1.9 pulley
I Love My J ♡
cody nobbs wrote:Emailed him the other day said hes making more in a month or two and its a 2.5 outlet thanks tho man
And here I thought I knew about something that no one else did haha.
Thats a tiny ass pulley. Ive never seen one that small.
Yeah pulley boys make i think it starts at 3.0 and all the way down to 1.9
and i learn alot by typing crazy @!#$ into google i typed in m62 mainifold and bam i found that adaptor on a gtp or bonniville website and fpund guy on ebay said they go for 315$
I Love My J ♡
1.9" pulley?!!?!??! damn bro even im not that @!#$n crazy lol
RIP silver car. You will be missed.
-Z Yaaaa- wrote:1.9" pulley?!!?!??! damn bro even im not that @!#$n crazy lol
false, had you known about it you would have run it lol.
"In Oldskool we trust"
^^^ i agree lol i think your just as crazy as me and soo would run it
I Love My J ♡
no way. cant run it on an m45, anyway. you MIGHT be able to machine down the snout a bit further than i did and maybe take more off the pulley i did to POSSIBLY squeeze a 2.35 on it but thats the absolute max. the m62 however has the pulley ran on the outside edge of the snout, it doesnt ride over it like the m45. at least on my m62 it doesnt anyway so yes, in theory you could run a pulley the size of the shaft if you wanted to LOL.
but lets be realistic here, a 1.9" pulley is not going to produce you any results man. its going overspin that blower WAY WAY WAY over its redline and not give you jack for results. there comes a point where going smaller on the pulley just doesnt do anything. and believe me, im all for overspinning the blower and trying things out to see but im telling you, its not going to work out. the lowest ive ever heard of anybody putting on even a gen 5 m62 is a 2.6 iirc and that was even unbelievable to most lol
RIP silver car. You will be missed.
Pulley boys recomends a 2.2 for my blower to make 10-13 psi and i want more than that so thats why i was thinking 1.9 with a massive air to air intercooler and hope i could keep the heat down to benifit from it but if i cant i guess 2.2 will have to do you guys have all been running blowers im still learning all my motors ive built have been n/a 4.3s and sbc so i will have fath in your wisdom and run the 2.2 i wanna make power efficiently thats for sure
I Love My J ♡
dont just slap on the tiniest pulley on your blower............................................................
thats asking for ridiculous belt slip, instead find an over sized crank pulley so you have more surface area for the belt to ride on as the belt might ride on 1/2 of the pulley so 1.9 is only say 1" of pulley when you can say make a 3" pulley and over sized crank have the same boost but now have 1.5" of contact and this way you wont have as much chance for belt slippage
I totaly forgot about overdrive pulleys the origional intintion was to get ahold of MD and get one but i been soo concentrated on the blower it self i lost tuch with the big picture :/
I Love My J ♡
Learn how to read compressor maps and you'll understand where everyone is coming from. Every turbo or supercharger has an efficient range. Spinning it above that just creates heat or the flow is maxed out and you choke the engine.
Sweetness, I think the chart you're thinking of is the adiabatic efficiency chart.
There definitely is a ton of math that goes into engine design. I've done more reading and number crunching than I'd like to admit and that's all just been n/a building.
Boost is another whole topic that builds on the principles of n/a engine building. I'm not nearly as versed on it as I wish I was.
Brian wrote:Learn how to read compressor maps and you'll understand where everyone is coming from. Every turbo or supercharger has an efficient range. Spinning it above that just creates heat or the flow is maxed out and you choke the engine.
yes.. BUT, you increase efficiency by cooling the charged air off drastically by using meth/water injection. so this is how you can get away with spinning an eaton way past its redline and still make power. as far as flow goes, porting it will help with that. i can see using a 2.6 or 2.7 or an m62 but NEVER a 1.9. not with our crank pulley diameters, anyway.
cody, they actually recommend you use a 2.2" pulley on an m62? did they assume the crank pulley was 5" or something? LOL
Edited 1 time(s). Last edited Tuesday, September 03, 2013 4:12 PM
RIP silver car. You will be missed.
I'll just remember that we agree to disagree on meth Brad. Haha.
Took no offence to any of that
and thanks for the detailed advice ill admit i have no idea what the limits are of my m62 i havnt looked into thst near as much as i want to or need to i just got excited because i started getting some money togeather to get this in gear finall. I need to find out what cfm it will flow what the rpms limit is get ahold of md on his pulley size and figure ouy the formula on the rpms ill be spinning with what size pulleys and at what engine rpm and how much boost ill be making at that rpm so i know where i am at i do have alot of math in my near future but all in the search for power
igot the engine build figured out that was easy for me but this boost part is new to me so ill admit i do need to breath for a second and stand back and look at whats going on and plan carefuly i only wanna do all this once and i have decided to go remote mount too ive made my mind up on the whole build finally so now its math and even more research soo exciting
any help you guys can offer my ears are open you guys know and i dont. At this point im going all out i wanna get as much whp as posible with what ive got blower wise and with the ld9. I have fath in the end i will be impressed with the results so here we go haha oh btw if anybody knows the math formulas i need or where to find graphs and blower spacific info i need any help would be awsome to cut back on my search time
I Love My J ♡
Brian wrote:I'll just remember that we agree to disagree on meth Brad. Haha.
meth all the things! lmao
RIP silver car. You will be missed.
nobby, to calculate blower rpm use this equation:
crank pulley / SC pulley = x
x * RPM = SCRPM
mike's oversized crank pulley is 7". so, lets use that and assume you'll be using stock 6500 reline with your 1.9" snout pulley just for shiz and gigs...
7" / 1.9" = 3.68
3.68 x 6500 =
23,920 rpm
ive heard the gen five cobalt ss m62 redline is 16,000. so, a less efficient, older gen 3 model spinning 23,920 rpm. see where i am going with this?
RIP silver car. You will be missed.
Sorry to correct the verbage in the last calculation:
And a 3.0" S/C pulley on a STOCK Crank pulley would yield:
6.406" / 3.0" = 2.1353
2.1353 x 6500 = 13,879 rpm
-Chris-
-Sweetness-
-Turbocharged-
Slowly but surely may some day win this race...
I feel loved.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO