NEW FORCED INDUCTION SYSTEM!!!!11
06-04-2006, 10:25 PM
#22
0.0 BAR
Join Date: Jun 2006
Posts: 5
Re: NEW FORCED INDUCTION SYSTEM!!!!11
Hemmm.... So I was doing a search on the internet about the BDT and I came to your site, so I joined and here I am posting my first post.
Thomas Kight:
http://www.boosthead.com/updates.php
Home Made Superchargers: (click on the gator)
http://www.gatorsuperchargers.net/
Wynjammer (yea I read about the flame war thread about it being BS):
http://www.wynjammer.com
http://www.boats.com/boat-articles/H...oost/2069.html
Looks to me like they are about the same one is front drive one is rear.
The curious thing, Thomas Knight is well known in the industry for his turbo stuff, been around for 30 years. Leaves me wondering...
I might stick with a turbo setup, but for low boost, if the supercharger runs as cool as is claimed, well then for low boost a turbo couldn't touch it.
As for the wynjammer, A budy has one his s10, running 8 PSI and it is a nice setup, so I know the wynjammer works, dont have a clue about the other stuff.
Yea I get the whole you can do a DIY turbo for less, but I dont want to tap the oil pan or deal with the heat or add an intercooler.
Looking at doing my Infiniti M30 not sure yet, VG30 3.0 V6...
Thomas Kight:
http://www.boosthead.com/updates.php
Home Made Superchargers: (click on the gator)
http://www.gatorsuperchargers.net/
Wynjammer (yea I read about the flame war thread about it being BS):
http://www.wynjammer.com
http://www.boats.com/boat-articles/H...oost/2069.html
Looks to me like they are about the same one is front drive one is rear.
The curious thing, Thomas Knight is well known in the industry for his turbo stuff, been around for 30 years. Leaves me wondering...
I might stick with a turbo setup, but for low boost, if the supercharger runs as cool as is claimed, well then for low boost a turbo couldn't touch it.
As for the wynjammer, A budy has one his s10, running 8 PSI and it is a nice setup, so I know the wynjammer works, dont have a clue about the other stuff.
Yea I get the whole you can do a DIY turbo for less, but I dont want to tap the oil pan or deal with the heat or add an intercooler.
Looking at doing my Infiniti M30 not sure yet, VG30 3.0 V6...
06-04-2006, 11:03 PM
#24
0.0 BAR
Join Date: Jun 2003
Posts: 0
Re: NEW FORCED INDUCTION SYSTEM!!!!11
Originally Posted by RacerX
Yea I get the whole you can do a DIY turbo for less, but I dont want to tap the oil pan or deal with the heat or add an intercooler.
Go do some reading on basic thermodynamics and you'll learn that when any air is compressed, either from a turbo or a supercharger, heat is produced. You don't need to add an intercooler for a turbo, but a turbo or a supercharger will benefit from intercooling. And tapping an oil pan takes about a half hour, its not that big of a deal.
06-04-2006, 11:30 PM
#25
0.0 BAR
Join Date: Jun 2006
Posts: 5
Re: NEW FORCED INDUCTION SYSTEM!!!!11
I did the reading, from what I found the Centrifugal Supercharger runs a lot cooler at a given RPM.
Which got me thinking about the whole line of superchargers out their, then I cam across those differnt links and the ebay stuff.
As for tapping the pan, the only safe way to do that in my opinion is to pull the pan, which I dont want to do. I dont have a lift and that means a creeper under the car, something I would like to avoid, then their is the fabrication of the turbo header, dont get me wrong, the Leopard (JDM)/Infiniti m30 was available with a turbo, ceramic setup. For that matter the vg30 is the same core engine as the 300zx and Maxima, except in the Infiniti you get a SOHC. Not the DOHC, so a twin turbo swap could be done and has been done from what I read.
That and the chasis is the same as the R31 Skyline with cosmetic differences, so I can bolt up a lot of r31 and r32 suspsnesion stuff and so on. I know of a few 5 speed conversions.
Anyway I am happy with the stock 210hp to a point, its a heavy car, 6-8 PSI would be a nice upgrade and no lag. Of course max boost comes at max rpm, but you do get boost across the rpm range, just not as good as a roots for off idle or something like that. But roots suck as efficiency goes and a screw type costs to much.
The turbo might be nice... just undecided, hince the posts, and I am most curious.
I read Max Boost and a few other books. The results I see on the s10 are impressive and that setup was 1700.00 shipped with chip.
Seriously I suppose you could make your own or some such, no different than a DIY turbo. I think these guys just did that with a Supercharger, they might be calling a BDT for marketing or some crap.
Which got me thinking about the whole line of superchargers out their, then I cam across those differnt links and the ebay stuff.
As for tapping the pan, the only safe way to do that in my opinion is to pull the pan, which I dont want to do. I dont have a lift and that means a creeper under the car, something I would like to avoid, then their is the fabrication of the turbo header, dont get me wrong, the Leopard (JDM)/Infiniti m30 was available with a turbo, ceramic setup. For that matter the vg30 is the same core engine as the 300zx and Maxima, except in the Infiniti you get a SOHC. Not the DOHC, so a twin turbo swap could be done and has been done from what I read.
That and the chasis is the same as the R31 Skyline with cosmetic differences, so I can bolt up a lot of r31 and r32 suspsnesion stuff and so on. I know of a few 5 speed conversions.
Anyway I am happy with the stock 210hp to a point, its a heavy car, 6-8 PSI would be a nice upgrade and no lag. Of course max boost comes at max rpm, but you do get boost across the rpm range, just not as good as a roots for off idle or something like that. But roots suck as efficiency goes and a screw type costs to much.
The turbo might be nice... just undecided, hince the posts, and I am most curious.
I read Max Boost and a few other books. The results I see on the s10 are impressive and that setup was 1700.00 shipped with chip.
Seriously I suppose you could make your own or some such, no different than a DIY turbo. I think these guys just did that with a Supercharger, they might be calling a BDT for marketing or some crap.
06-04-2006, 11:32 PM
#26
3.0 BAR
Join Date: Jan 2003
Posts: 4,438
Re: NEW FORCED INDUCTION SYSTEM!!!!11
turbos are more efficient than superchargers. I bet a $65 ebay 150000 mile Garrett 42/48 would make this thing look like a hairdryer, you have to spin it much much faster than that setup ever could. My turbos peak flow comes at 128000 rpm or somthing like that...
06-04-2006, 11:43 PM
#27
0.0 BAR
Join Date: Jun 2006
Posts: 5
Re: NEW FORCED INDUCTION SYSTEM!!!!11
Actually I did some research on it and your wrong on the efficiency. A properly sized turbo vs. a oversized centrifugal supercharger, maybe.
But in general turbos are rarely properly sized, they along with all the hard ware like the header pipe is a compromise.
As for Rpms, they claim a lot less rpms, thomas knight stated that is a large compressor wheel, with smaller inducer that makes 6 PSI by 30k.
Look at any current Centrifugal unit, they dont spin at high speeds like a turbo, they spin a lot less. The difference I think, if I understand all the BS correctly is that this BDT thing has a smaller inducer so they sacrafice max flow. Where a paxton or procharger would flow up to 1100 CFM and is way oversized for a small displacement motor.
The numbers, the theory, all that makes for a good solid arguement, which is why I was doing more research.
In theory, big wheel, small inducer, large inducer to exducer ratio in the right housing would flow the right CFM and make boost at low rpm, the question is, are they or have they really done that or is it some BS scam like those bilge pumps.
When you look at the wynjammer, its the same thing, only spinning counter clockwise. From the wynjammer sight and various articles, it is seriously hard not to believe the ---- works, Ghetto or not. It doesnt look like it is supposed to be some high PSI monster.
A centrifugal supercharger has a lot of advantages including less delta rise than a turbo for the same boost level. That means you can tune for more power, but ultimately you arent going to run no 1 bar with that home made supercharger.
But in general turbos are rarely properly sized, they along with all the hard ware like the header pipe is a compromise.
As for Rpms, they claim a lot less rpms, thomas knight stated that is a large compressor wheel, with smaller inducer that makes 6 PSI by 30k.
Look at any current Centrifugal unit, they dont spin at high speeds like a turbo, they spin a lot less. The difference I think, if I understand all the BS correctly is that this BDT thing has a smaller inducer so they sacrafice max flow. Where a paxton or procharger would flow up to 1100 CFM and is way oversized for a small displacement motor.
The numbers, the theory, all that makes for a good solid arguement, which is why I was doing more research.
In theory, big wheel, small inducer, large inducer to exducer ratio in the right housing would flow the right CFM and make boost at low rpm, the question is, are they or have they really done that or is it some BS scam like those bilge pumps.
When you look at the wynjammer, its the same thing, only spinning counter clockwise. From the wynjammer sight and various articles, it is seriously hard not to believe the ---- works, Ghetto or not. It doesnt look like it is supposed to be some high PSI monster.
A centrifugal supercharger has a lot of advantages including less delta rise than a turbo for the same boost level. That means you can tune for more power, but ultimately you arent going to run no 1 bar with that home made supercharger.
06-05-2006, 12:36 AM
#30
0.0 BAR
Join Date: Jan 2005
Posts: 0
Re: NEW FORCED INDUCTION SYSTEM!!!!11
the idea is not new..........
http://www.w2wpowertrain.com/t-techRotrex-2.aspx
fun to play with, but they HAVE to run a special fluid.......
http://www.w2wpowertrain.com/t-techRotrex-2.aspx
fun to play with, but they HAVE to run a special fluid.......
