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General Tech => Roots & Twin-Screw => Topic started by: 65futura on March 07, 2011, 10:46:20 pm



Title: weiand 174 on a 302
Post by: 65futura on March 07, 2011, 10:46:20 pm
hello all, i have a 302 with dart pro 1 195 heads, jay cam, about 9.4 to 1 comp ratio with speedpro forged pistons. i am contemplating a weiand 174 roots style supercharger for some more low end torque and seat of the pants fun.  im a little nervous about the compression ratio. can i pull this off with out detonation  and 6 psi boost or what ?   thx in advance for your input. Mike


Title: Re: weiand 174 on a 302
Post by: 69 Merc on March 08, 2011, 10:44:48 am
hello all, i have a 302 with dart pro 1 195 heads, jay cam, about 9.4 to 1 comp ratio with speedpro forged pistons. i am contemplating a weiand 174 roots style supercharger for some more low end torque and seat of the pants fun.  im a little nervous about the compression ratio. can i pull this off with out detonation  and 6 psi boost or what ?   thx in advance for your input. Mike


Is this a street car?

The reason I'm asking this is because on street tires the last thing that you want is more supercharged "low end torque".  I do understand what you are wanting to accomplish it's just the "more low end torque" wording.

I'm just trying to correct anyone who talks about "low end torque" to get the ride moving on street tires.  Too much low end torque and your ride won't be moving -- it will be smoking your back tires.

You'd much rather have more mid to top-end power for a ride that is driven with street tires.


Title: Re: weiand 174 on a 302
Post by: 69 Merc on March 08, 2011, 10:48:11 am
What about a methanol drip system?

I've never used it but it might be worthwhile to look into.


Title: Re: weiand 174 on a 302
Post by: quick26 on March 08, 2011, 11:01:32 am
i would think it all depends on the tune. 


Title: Re: weiand 174 on a 302
Post by: mighty mouse on March 08, 2011, 11:28:38 am
hello all, i have a 302 with dart pro 1 195 heads, jay cam, about 9.4 to 1 comp ratio with speedpro forged pistons. i am contemplating a weiand 174 roots style supercharger for some more low end torque and seat of the pants fun.  im a little nervous about the compression ratio. can i pull this off with out detonation  and 6 psi boost or what ?   thx in advance for your input. Mike

Get a BTM controller.  Be generous with the timing pull per boost poundage.  Run good gas - with ethanol whenever possible if you can find it. 

It will have a lot to do with the cam timing though.  So be overly cautious to begin with and work from there...


Title: Re: weiand 174 on a 302
Post by: gator on March 09, 2011, 04:52:47 am
i used to have a 174 but never used it, i did a little research,  from what ive read they run pretty hot the higher you spin them compared to a kenney bell or similar.  If your only after 6-8psi i dont think that would be a problem at all, but since your engine/heads flow better than a stock 302, you will probably have to pulley the blower to see the 6psi.   
All good info already posted, watch timing, btm good idea, i think a meth kit is a good idea also to cool the charge and keep detnation away.   

I still have a holley 750 blower carb, thats built for these lil blowers if youre intrested, i bought it new from holley reman, and never used it.


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 09, 2011, 10:36:34 am
Hey running one for the last few years with some pretty good luck let me know what your looking for an sure i can help or at least get you in the right direction


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 09, 2011, 10:37:38 am
lol lots of low end


Title: Re: weiand 174 on a 302
Post by: ochohill on March 09, 2011, 05:04:09 pm
Nice sleeper. What's the cleavis to the head for? Or do I already know?


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 09, 2011, 05:14:01 pm
Torque strap helps a lot


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 09, 2011, 05:16:32 pm
Runs not bad 12.1 at 116 mph on street 70 14 bfs
did a 11.7 at 118 on liitle 26 tall 8,5 MT  slicks


Title: Re: weiand 174 on a 302
Post by: 302esky on March 12, 2011, 09:12:57 am
ics titan copper head gasket that does not need o ring heads or block and come with 40, 50 ,60 ,70 ,80,thou  thick head gaskets and you can use them and the msd boost timing master and i use a snow performance water/methonal injection just to be safe than sorry 


Title: Re: weiand 174 on a 302
Post by: 65futura on March 27, 2011, 02:11:04 am
Hey running one for the last few years with some pretty good luck let me know what your looking for an sure i can help or at least get you in the right direction


looks like you had to ditch the fan shroud. what did you do with your fan set up ?
thx Mike


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 27, 2011, 09:53:49 am
No room for a fan so running a electric 16 inch as a pusher fan i works but when its real hot out its still hell going to a wider alum rad this year hope it helps lol


Title: Re: weiand 174 on a 302
Post by: grslms51 on March 27, 2011, 10:49:07 am
woodywagon..can i ask a few questions....i really like the idea of a little street blower and have the same engine bay as you...do you run a timing controller or just set the timing back?....what head gasket and compression do you have?..i have MLS gaskets and 9.2-9.5 compression(depends on what calculator i use)..how much trouble was it to tune the carb?..i run a 650DP jetted up..is that to small?....does the kit come with a long center crank bolt for the botton blower pulley?...will a stock tfi dizzy fit?..it looks kind of tight ....also,how much more fuel did you use with the blower cruising around?...i drive 100-150 miles on a big cruise weekend...sorry for so many guestion,but i want to make sure before i pull the $3000 trigger at summit...i also have to fab a bigger radiator..i already have an engine fan and full shroud,plus a 16" pusher fan for 85-95* days and a griffin rad...they just don't hold a lot of coolant......thanks for any info,Rusty


Title: Re: weiand 174 on a 302
Post by: knowitall on March 27, 2011, 11:06:43 am
 :popcorn:


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 27, 2011, 09:31:43 pm
Hey guy ..Grslms..no prob running 9.58 comp set my timing to 30 full advance have a 750 mech secondaries demon  running little too rich the way its jetted..96 or 98 jets i think  have been thinking of even going bigger carb and jetting to AF ratio have heard i think thru this site that a bigger carb will let you pull more boost changed pulley but also changed cam to a 268 comp cam did have a 270 comp but the overlap is better for a blower with the 268 ...but had 7 lbs boost with the 270 changed pully and cam still at 7 lbs....the kit will have eveything you need make sure you tell them what year motor and balancer it has stuff in kit to even out it on later 5.0 ltr motors..will add you on as friend and can give a little more info without going any longer here not sure how much i am allowed to gab ...the little woody runs like a animal with this setup and sounds great...best so far 11.7 for a car that drives everywhere including the 300kms one way to the track and back fuel can be a little rough and you have to rum good fuel we can get 94 oct right at the pump hope its aval..near you have run 92 going to the track just dont stuff your foot in it with that fuel lol..Rock


Title: Re: weiand 174 on a 302
Post by: grslms51 on March 28, 2011, 06:42:40 am
thanks for all the info...i saved up for a good set of heads and not sure to get them or the blower...i've been researching supercharging all weekend....i can get 92-93 octane around here....i'm going to add up the price for eveything-blower-carb-radiator-boost timing controller and maybe cam..thanks again.


Title: Re: weiand 174 on a 302
Post by: jayh on March 28, 2011, 08:03:00 am
wow 30 is pretty brave. I think Id start out about 24 with 6#'s

9.5:1 is no big deal



theres a 144 on buffalo C/L for $1600


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 28, 2011, 11:09:22 am
Remember to check heads thats how i ended up going blower got a set of rpm 202 valves edelbr heads an chamber is bigger than stock ford  289 302...so thats where it started comp went from 10 to 1 to 9.58 had to have my pistons re notched for clearance..also forgot to say went with a forged crank and dont forget the girdle money well spent ...better bang for the buck in my eyes is ...go with blower carb girdle cam... as long as you set the timing back you can get away with just a msd or comparable box as long as it has a rev limiter..lol made that mistake didnt have one when car was a 4 speed ...hate to say it but you know that one time when EVERYONE misses a gear...well boom,,,C4 now and a better box maybe should have gone with the one that pulls out timing but up here there almost as much money as my crank was with 92 i am sure 28 would work 30 is good with 94 fuel going to try 32 34 this year at the track with some of there good fuel...crap 100 bucks for 5 gallons...must be nice to be south :Gluck:


Title: Re: weiand 174 on a 302
Post by: grslms51 on March 28, 2011, 07:29:38 pm
wow,that is high..i thought 50 bucks for 5 gallons was bad.


Title: Re: weiand 174 on a 302
Post by: jayh on March 28, 2011, 07:43:20 pm
you can run timing locked. I would just run less and tune

I had a combo I used to spray at 32 but it liked 40 na


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 28, 2011, 08:02:11 pm
hey Jayh if i was to take more timing out what would you do to compesate..have a few things changing this year against some ...but going to try ...going with dougs headers.as said before and  a magna flow 2 into 1 ...it comes two 2.5 to 3 than a flowtech cutout than 3 inch pipe to the back running a 3 inch dna at the back bumper putting a wideband AF at the end of one of my headers and try to tune down the ratio as said running sick rich so hope to gain a little by getting leaner have heard 11.5 is cool at wot ...lots on both sides of the camp saying one 3 isnt enough and others swearing by it will see at dyno i guess or track let me know what you think would love to see a post here on guys who have gone single and duel ...last checked was just shy of 400 rwhp 397 was the number i believe dont have sheets in front of me but that was with shorty hedmans and a real poor bent 2.5 an flowmaster 40s hope that mandrel bent 2.5 to the y and mandrel bent 3s make the diff up and will be much more peace with next doors houses and the law


Title: Re: weiand 174 on a 302
Post by: grslms51 on March 28, 2011, 10:19:44 pm
hey,jayh,,is that 144 blower on buffalo,ny c/l..i could'nt find it.


Title: Re: weiand 174 on a 302
Post by: jayh on March 29, 2011, 07:23:27 am
http://buffalo.craigslist.org/pts/2287169287.html


my opinion is single 3 is not enough. single 3.5 will work with what you are doing(essentially dual 2.5) prefer single 4" especially with power adder


Title: Re: weiand 174 on a 302
Post by: grslms51 on March 29, 2011, 06:33:57 pm
thank you much.


Title: Re: weiand 174 on a 302
Post by: woodywagon on March 29, 2011, 07:07:19 pm
Well should see . :duh.dont think they make the magna flow y into a 3.5  lol whats the worst i have to redo it ...hey do you get up to cayuga much during the season your right around the corner in buffalo should try to get there one weekend the same time is it the closest track to you ?


Title: Re: weiand 174 on a 302
Post by: jvail on April 08, 2011, 06:35:08 am
Hey, all, I haven't been here in a looong time, but possibly I can offer some insight into these blowers....   Although I am running E85 in mine, so I don't have any detonation problems or the heat.  In fact it cools the intake charge so well that the blower actually sweats when it is warm out.  Mine is 8 psi, and I have approx. 9:1 comp.  I also have my timing locked @ 26 I believe because I don't have a retard.

I would be more than happy to help if I can.


Title: Re: weiand 174 on a 302
Post by: woodywagon on April 09, 2011, 06:52:13 am
Hey jvail how things going with your setup what are you running it in car wise and any 1/4 times yet would be interested in seeing pic of yours


Title: Re: weiand 174 on a 302
Post by: jayh on April 09, 2011, 07:18:04 am
woodywagon I just saw your reply now. I highly doubt Il make it to cayuga but Ill probably be at dunn tire raceway park and nyirp. I dont have anything worth taking right now but I might be out with friends and cars Ive done work to at my work


Title: Re: weiand 174 on a 302
Post by: woodywagon on April 09, 2011, 02:34:38 pm
ahhh jayh lol cant get across the border   :dissap:     so i have to stay up here maybe one week if you are heading over let me know we can meet up there its about 2.5 hrs from my place...lol 4 hrs if i am driving non od screaming down the road woody lol


Title: Re: weiand 174 on a 302
Post by: jvail on April 11, 2011, 06:12:12 pm
I've got mine in a ranger with a 302 and a 5 speed.  It could use some more fine tuning, but it is really close.  I've got a wide band in it that I have been using to get the tune correct.  I don't have any 1/4 times, and have never been to the strip.  It has too little tires to get any kind of decent times.  It is definitely fun to drive though, it is a ticket machine  :burnout!


Title: Re: weiand 174 on a 302
Post by: woodywagon on April 11, 2011, 08:07:27 pm
Well update !!!
dougs headers are really nice to look at but have been a  ?xo%$..bugger to install
Must be losin my mind thought i had hedman shorts and 2.5 x pipe and flowmasters

What i did have was hedman shorts X 2.25 and flowmasters

Now have Dougs longtubes .2.5 s into a magna flow Y into 3 inch with flowtech cutout into a dna muffler single exhaust..
.
Ran out of time ...so tailpipe will get done hope this friday up over rear end on passenger side and stick dna there where stock muffler used to hang
havent opened the cutout yet car sounds absolutly bad ass  :jawdrop:

Dougs should really have warned ..they only fit with stock style trans mount or melvins fords.. style..
Was running a global west frame rail to frame rail trans mount and had to junk it collectors come right at same place as headers do made a new trans mount and now back on road will finnish doing exhaust an wideband probe later this week and hope to get some pics and dyno numbers or track times shortly


Title: Re: weiand 174 on a 302
Post by: woodywagon on May 13, 2011, 09:16:04 am
had hopes of putting a link to u tube  :dissap:
but cant fig out how
go to u tube and punch in
1965 falcon exhaust
let me know what you think of the sound of the new exhaust