Supercharger question

haha i rememebr this thread!

im prety sure i'm going F/I by the end of the summer....
i'm having Vinny Ten Racing do the install.

-which brand/type would you guys go for?
-which "stage" would you go for?
-what else do you recommend me doing post-F/I install? (follow-up mods, etc.)
-any tips, tricks, or comments would be awesome!

ready.....go!
 
cube, the lms setup should be shipping out to me about now, a week or so before I get it I think.

tommorow I'm going to reset the ecu & baseline it on a dyno bone stock,

then next week or 2 I'm going to have an exhaust built for it I think. I'm considering having a custom exhaust built for me. I reached out to a few old contacts & hooked up with an old friend of mine that happens to be a big time exhaust builder, even builds nhra pro stock stuff & does a lot of private label stuff for other tuners. might have him prototype a system for the fx. if I do that then I'll dyno before & after to see real #'s normally aspirated on the exhaust... he has a cad mandrel bender so system can be duplicated & reproduced... see how that goes, mine'll be the test mule...


then I want to install either a u-tech turbo XS or maybe a greedy e-manage ultimate, a bigger in tank pump & upgrade the fuel system to a full return system with a boost controlled regulator, also install meth injection system...

THEN install the blower:biggrin:


theres a guy in wisconsin that sells a replacement cnc'd impeller for the blower we have, it brings the boost up from 7 to around 9.5 at the same blower rpm with a much more efficient impeller than the stock cast one, bumping up the pulley & over spinning these powerdynes are a disaster, this is a better solution. the guy also does upgraded ceramic bearings & upgraded shafts, these powerdynes can be built up to be nice, check this guys stuff out...,

http://cgi.ebay.com/ebaymotors/ws/e...m=350018214206&ssPageName=STRK:MEWA:IT&ih=022


yeah, I thought I could keep it simple & just throw it in the way it came out of shady's fx... shoulda seen the flaw in that plan from the begining:wub:
 
That's some nice build on the impeller. That looks like it will be a killer in the powerdyne. Nice find John.

Also, sounds like a nice plan on the exhaust. Keep us informed on what's going on. Can't wait to see some nice numbers after this is all done.
 
sorry dude, I'm going to get out, I'll shift my sc conversation to my thread, I got a lot of stuff to discuss anyway, should be baselining it this afternoon:tongue:

& yeah cube, upgraded fuel system & a real management system is the way to go... the stock lms control setup is kinda limited & crude. did you see that 928 guys full race powerdyne rebuild? good stuff there.. don't count the powerdyne out just yet... it's a unique piece with some potential... this 928 guys got a good handle on strengthening it's weeknesses & overcoming it's shortfalls I think...
 
J, when you are thinking of F/I you need to consider some other factors as well. which kind of set up do you want? turbo or supercharger?

with a turbo set up you will need a VB upgrade because of the amount of torque to protect your transmission. with a supercharger depending on what pulley you use you may or may not need it, but it would never hurt to get it anyways...average cost for a VB upgrade would be ~800-1100 (just an estimate).

like cube said, a transmission cooler and oil cooler will help keep your system cool and prevent any over heating or anything like that.

now onto what kind of set up you want..your options are turbo and supercharger...well nitrous too although i dont think any FX's have ventured there yet. turbo will give you a huge TQ boost early in the RPM and really throw you back in your seat...a supercharger like vortech is more of a linear power gain (more power as you rise in the RPM).

if you go turbo, you gotta think about single turbo or twin turbo; even a single turbo, you have to keep the psi down (no more than 8-9psi on a good tune) or you can still blow your motor if the tune isnt right. if you go twin turbo you should have your engine built for more protection and you can also crank up the psi too for more power.

if you go s/c, theres different pulleys/stages to be used. vortech has 3 pullys i believe. the stock one is said to be boring but many members with it like the one in betwee (3.13 i believe). there are also a few different pulley mods you can do to increase the PSI safely.

if you go with one of these two set ups (sorry i know im not mentioning stillen, i am not very familiar with it i guess someone else can talk about it), you gotta think of supporting mods. a turbo set up you need to decide if you want your downpipe to be catted or catless, catless giving more power but its like a test pipe so it will smell. with twins and vortech you can/should get either hfc's or test pipes as well as a good breathable exhaust system. why go FI then keep everything else restrictive right?

with a single turbo i think its perferred to have a single exhaust because of the single down pipe, or else a reverse y-pipe has to be made to accommodate your dual exhaust. with twins a good 2.5"-3" exhaust should be fine depending on your power. for vortech again it depends on the power you will be putting down...something simple like a 3" single nismo will be fine, or even 2.25" dual from FI.

theres tons of things when it comes to FI. i wouldnt personally suggest what i would get because you are not me. you need to come up with this one on your own after you read everything. this is a BIG financial decision (and it is in no way shape or form an investment :rofl: lol). you should think about the costs (anywhere from lets say 6K-25K) and see if its still something for you.
 
hey man, don't know if it's a typo but I think you got this reversed...
uhhh...i dont think so this is a dyno graph of a vortech set up:
91OctaneTune.jpg

91 octane

look at the power gain...TQ and HP both increase as you go higher in the RPM and then TQ starts to taper off after 5000rpm


this is a ST dyno:


Dyno.jpg

91 octane

the TQ just blasts you back from 3-4000RPM and then starts to decrease after 5000rpm while the hp increases.
 

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see, I was always under the impression that sc was more of a low end, instantly there type boost where a turbo would lag till it really spun up... we used to use very loose converters to let the engine get up there quicker with the turbo cars...

now that was before all these fancy boost controllers & stuff though, using just bleed valves for the wastegates... I'm guessing that's got something to do with the difference, but still..., not what I woulda thought....
 
Depending how the turbo's are setup these days and the size of the turbos used there really isn't that much of a lag as in the past. Also, I believe that a turbo setup will give you that instant back in the seat feeling more then a sc will as well as higher top end power/speed but a sc will generally give what B is referring to as much more linear power throughout.

Edit...dam late to respond. But yea what rookie said too :biggrin:
 
I do know that turbo's today are pretty different from what they used to be, the electronic control is a big difference, in the past with just a bleed valve, the waste gate would open progressively as boost rised, where now electronic can keep the wastegate completely closed till it approaches max boost levels, maybe gotta start opening slightly before so it doesn't overshoot, but still electronic boost control is a major improvement over the old days as far as lag is concerned...
 
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