98 RK Supercharger

[John_D.]

<blockquote>quote:</font><hr>Originally posted by Mighty Thor:
There's my uncle who is a mechanic who recommends putting a crankcase breather on my car so I can run 9lbs of boost but it's something I'm thinking about.<hr></blockquote>

And there's me who has a dual pcv concept in mind, where the upwind side of the s/c will pull from the pcv when the downwind side is pressurized, so that there is still some suction on the pcv system. ;)

[FirebirdGT]

You don't want more boost - just to have the boost be more effective. High boost is a function of the engines poor breathing.

If you take a boosted engine and work the heads the boost will go down, but the power will stay the same or go up.

This point is outlined in the October 1998 issue of Automotive Industries, a highly respected automotive engineering industry trade magazine in an article titled "Eaton Boosts Engine Aspirations" by Don Sherman.

"Compared with supercharged engines offered by the imports, GM's Series II 3800 V-6 uses lower boost pressure and no intercooler, note GM Powertrain engineers Bill Owen and Robert Gardner. The GM engineers regard boost as a measure of inefficiency - GM uses 7.5 psi, only 2/3 as much as Jaguar. Boost is the pressure required, above atmospheric, to push the charge through the engine to make power. Less boost for a given amount of power means more efficient flow, because heat and parasitic losses both rise with boost pressure."

[Golbez]

Hehe, yeah it'll be funny once we all start w00ping Mustang GTs with batman's kit under our hood. [img]tongue.gif[/img]

[Silver3800V6FBodyKY]

Can't we whip Mustang Gts without BATMAN's supercharger....? I think so.

[knowledgefreak]

<blockquote>quote:</font><hr>Originally posted by SweetNsLowV6:
the kit they have out for the 98, looks different than the old one that they had out, goto their website and take a look, everyone on here is sooo negative, cant we all just get along lol<hr></blockquote>

you could of actually bought the old one and put it on and used different tubing for the intake and filter... That is what they did.

[Ironman24]

Yup, I adapted the 97 kit to my 98 with some flexable blower tubing from powerdyne. A little fab work and some black pvc pipe and I mated it up to my whisper lid. Works like a champ.

[skEwb]

<blockquote>quote:</font><hr>Originally posted by Ironman24:
Yup, I adapted the 97 kit to my 98 with some flexable blower tubing from powerdyne. A little fab work and some black pvc pipe and I mated it up to my whisper lid. Works like a champ.<hr></blockquote>

Hey what kind of hp do you get out of yours? And what are your 1/4 mile times if you have any. As a matter of fact I'd like to know everybodys hp and time with this charger on. As I understand this is as bolt on as it gets. If some of us wait for the ATI charger we might need shops to put them on for us and if we run 10psi or higher we need full computer programming. Now as you all know none of that comes cheap. So for a good cheap solution the powerdyne kit does the job. I don't understand why there is belt slippage over 6psi couldnt we just replace the belts with some other type of belt?

[Ironman24]

I don't have a dyno of what kind of hp I'm making with the blower. Ever since it's been on I'm having what I think is either ignition or fuel issues, right now I'm leaning towards fuel. I don't think the stock injectors can handle the fuel I need.

I like the powerdyne, it's a good unit. I WILL figure out a way around the flat pulley eventually so I can run 9lbs. But first I gotta get 6lbs to work for me.

I should be in the 280 to 300 hp range at the wheels with 6lbs if I can get all the bugs worked out. For now the only dyno numbers I have are from a 100 shot of nitrous before the blower install.
http://www.carolinafbodyclub.com/iro...oinfo4_jpg.htm

[Shirl]

Posted by Jason Morgan:
ummm ok when you can run only high 13's on the powerdyne and you can run 13's with a 50 shot umm besides the nitrous being faster doh (umm you can spray a wet 100 shot safely) which would be low 13's and probly a 12 if you can hook and what not ummmmmm sooooooooooooo like i was saying if you want to go fast or be the fastest powerdyne is not the way to go. and nitrous is much cheaper and faster then the powerdyne lol do you get that part faster

It takes A LOT to get these cars into the 13's nevermind the 12's. So before you bash some of us who have experimented with our cars think about this: if it weren't for us you wouldn't know what the pros and cons of any modifications were for our cars. Just slapping on a 50 shot of nitrous will NOT get you into the 13's. And if I'm mistaken, I'd like a list of the people who have done it. Please be respectful of the people in this forum. I haven't had to delete posts or remove anyone from here and that is something that I'm VERY happy about.

[jmorgan]

ok sorry I sounded mean. just the first post made me mad and reflected in my other posts.

as far as someone running 13's with a 50 shot. My good friend slacker69 has run 13.801 with a 50 shot (this wanst in the best of weather either). hrmm isnt that what yall run on 6lbs and 6lbs is max the powerdyne can do reliably. (he lives in same town i have raced him and we race at the same track i am sure i could run 13's with a 50 shot) so for about a 1/6 of the price he ran the same as you but has more potential (just the powerdyne your nitrous on top of it is not what we are compairing). I dont think the powerdyne by itself will click off a 12 sec pass.

Thats all I am saying is that yea its good for 50-60hp but for better performance and cheaper cost nitrous is the way to go. I my self am not going with nitrous cause i have diffrent planes but if i really didnt have that muchh money and wanted to run with LS1's i would get some juice

you could do heads and cam($1000), converter($700), tires($360), nitrous ($600) and hell if you dont got some good gears add in gears for 400 and a little bit of good driving and I would say anyone just about (unless you just dont know how to race) will run 12's all day on that setup and hell will probly run 14.5's n/a all for probly less then the cost of just the powerdyne. ( i am talking NEW here if you found a used one for 1800 it would be alot better value but $3800 for a new one is just a little to pricey)

Im saying its not that great for bang for buck.

I mean common yall gotta see where i am coming from. The powerdyne does not rule all there are more things the guy can do to his car I am just letting him know.

[jmorgan]

ahh ok and when you say it takes alot to get them to run 13's it is only harder for the older cars cause hell the 2000's everyone knows how they run compaired to a 97 could be close to a sec diffrence to start with because of gears and what not else. spraying a 2000+ with a 50 shot into the 13's isnt that hard might need LSD and tires and im sure you could atleast hit low 13's with the 100 shot on a good day you might could dip into the 12's

(my mindset is also geared toward my track HRP which everyone knows is a fast track you could be slower for whatever reason) I know at my track it could be done with ease


track depending too in some cases cause hell i can run 9.3's at HRP in the 1/8 but at an 1/8 track in seally the best i have done there has been 9.6's (bad weather but still i wasnt hooking at seally and i was at HRP)

[Blazzin Joe]

i had a really hard time hooking at sealy, i spun all first gear through the 60' :( maybe now that i have an LSD and some drag radials it will be better [img]smile.gif[/img]

[Shirl]

posted by Jason Morgan:
as far as someone running 13's with a 50 shot. My good friend slacker69 has run 13.801 with a 50 shot (this wanst in the best of weather either). hrmm isnt that what yall run on 6lbs and 6lbs is max the powerdyne can do reliably. (he lives in same town i have raced him and we race at the same track i am sure i could run 13's with a 50 shot) so for about a 1/6 of the price he ran the same as you but has more potential (just the powerdyne your nitrous on top of it is not what we are compairing). I dont think the powerdyne by itself will click off a 12 sec pass.

Oh, trust me, I am not denying that nitrous is one hell of a power adder. But you could look at it this way also: when the bottle is empty, what is still there?? The Blower. Depends on whether you want power all of the time or only part of the time. I chose BOTH. As for the 6psi, that is not the max if you have a breather system. I have seen 9psi several times, but it doesn't matter how much boost you force in. If you don't have internal work done, the blowby will force it's way out somewhere else and be useless anyway. Now, comparing a 50 shot to 6psi: Think about the cooling effects of nitrous. Now think about the cooling effects of a supercharger. There are NONE. Unless you add some sort of intercooler, water injection, ect. So then, it would only make sense that a 50 shot could be comparable to 6psi. Now, if you are telling me that your friend ran a 13.8 with ONLY a 50 shot and no exhaust work or anything else, I'd still find it hard to believe. What else does he have done? There are people in here that are running a 75 shot that are in the low 14's/high 13's. What is the elevation at which he ran? Is his system wet or dry? How many lbs. is his car? Is the interior gutted? The reason I'm asking is because my car weighs 3540 with me in it, full ground effects, interior, street tires, stock motor, ect. There are a lot of things that go into effect as you know. It's all in how much money you want to spend to go fast. My motor isn't even touched yet. Neither is my computer.

[Shirl]

Jason, you're right and wrong about Slacker. Now here are his mods. It is not "just" a 50 shot alone. (btw, sorry Slacker for making you an example of the point I am making and nice et's.):

SICK-SIXX MEMBER
NA 14.8
Nitrous 50 shot . 13.801
Nitrous 75 shot . 13.569 with a 1.762 60 foot
2000 camaro 3.8L auto
NX Wet kit 100 shot,flowmaster,!airsilencer mod,!fra, K&N air filter,Ram air throught the grill, 3.42 w/LSD,stage 3 race transgo shift kit,Corvette servo,3000 Stall tourqe converter, port and polish throttle body, rksport headers, 3" high flow cat, O2 sim ,Flowmaster 40, hawk brake pads, slotted rotors, Painted calipers,Painted camaro letters in the grill, PPI PCX-5800 amp , Kenwood 6.5 and 4" Rockford HE 10"

[Cale]

Not quite just a 50 shot if you ask me.