Yep its a nice piece indeed ! , i'll soon be buying one soon ! I will be puting that in together with oversized studs an excessive / pineapple oil pan , Gotham oil pan race and one or two other little things . I hope to be able to run at 12K+ and 25-30 psi boost RELIABLY !!!!!

 

Why run so high rpm?

 

I am just calling numbers right now , but I think to make decent power you will need higher boost and / or RPM . Since I dont intend to be using race gas , I cant go that high on the boost , so the other choice is to extend the usable RPM range , this is why I am trying tobuild my motor for "motorcycle like " RPM's

 

U will likely lose power at high rpm running whit a turbo..
The motor he is building for my is a PP motor and would make about 700-800whp at 30psi..
And that is whit a GT4202R and a/r 1.01 on aprox 8000rpm..
But I went for a GT4202R whit a a/r 0.91 that is so it would be better to drive on the track..
And because of back preasure I won`t be able to make that kind a power,will probably see 600-650..

 

I will be running a pair of GT3040R's with 1.06 (or 0.82, havn't finalized yet) ) ratios on the backside. Each compressor is good for 600 hp , I also run a whole Projay intake , so choking at high RMP's should be a problem . My desire is to make decent power with less boost on pump gas !

 

Can somebody please PM or email me with contact info for this shaft? I will be purchasing one asap. Thanks.

Justin Linder
www.linderpowersystems.com
info@linderpowersystems.com
www.myspace.com/linderpowersystems

 

Got the pm, thanks!

Marcel, you are obviously going to make some power, what are you doing for a transmission?

 

I think I'll eventually go to one of those V8 boxes a tremec , richmond , what ever , I havn't looked in any detail yet.

 

That is what Im looking into as well, I was just trying to avoid changing my brand new exedy triple plate clutch... Oh well, maybe someone can make me some custom friction disks with the proper spline...

 

If u are running 1.06 u wont have boost befor 6000rpm... thats huge exhaust housing for a twin setup..

 

Are U sure ? , Everyone says that the lag would be the same as a big single , but nobody has actual experience . I went ahead ad put together my twin setup against a lot of peoples advice and found that twin GT3071r's with 0.63a/r exhaust housings are actually a bit small for my porting , I saw as much as 22psi boost by 3500rpm's in third gear ! another forum member who runs twins uses 0.83 housings on non ball bearing turbos without a problem , and he runs a street port !
I have personally seen a 13B full bridge spool a GT45 with a 1.32a/r housing to 20+ psi by 5000 RPM ! as I said I havnt finalized yet , but I think I'll be good with either , but more power would be possible with the larger.

 

Yep I get "full" boost by 5K
with a GT45 style turbo 1.32 A/R

 

Thats not bad to spool up at GT45 at 5000rpm..

 

how much whp are u making whit the GT45?

 

don't know full power yet.. spun a bearing on the dyno before I could find out....lol

 

oh damn! That what the was for on the other thread. Sorry to hear that man! Do you get your eccentric shaft cut there in florida? There are a bunch of guys there that do that so I went ahead and got mine done to. This is supposed to help your problem out.

 

Richie will sort you out, he is a really easy guy to do business with.

 

Here is a simple outline of the machining/install procedure , sounds simple enough , but centering the front stationary gear sounds technical , anybody know how this is done ?

Here is a basic outline of the machining:

Center iron is bored in line with the rear stationary gear, just enough material is removed to clean up the casting and 2x circlip grooves are machined to retain the center bearing. Bearing sleeve is then machined to the same size (supplied oversize) and fitted to the center plate. Front stationary gear alignment needs to be checked, if it does not line up the front iron needs to be bored oversize, sleeved and re-bored offset (Mazdas machining varies a little from engine to engine). Frost plug is removed from the top of the center iron and the oil feed pipe is screwed into the center bearing (hole is already tapped).

Circlips and oilfeed pipe are included.

This is basic machining that can be carried out by any good machinist.

Regards
Richard

 

is it possible to send your irons to this guy to be machined?

 

source: http://cp_www.tripod.com/rotary/pg03.htm


Jeff Bruce (New Zealand)
I sent a query Apr 06:
Hi Jeff,
I have a rotary website would you mind writing a paragraph about what services you can provide, pricing etc .. about 3 & 4 rotor engine suppliers and the only ones I know of are Hurley, Yashiro and yourself. Do you have a real working 4 rotor engine?

Hi Craig,
Basically we make driveline parts for race cars etc. Mainly flywheels, axles, pulleys and gearbox alterations (ratio changing etc) . The rotary parts have come mainly from my conversion to fit a front stationary gear into a centre housing which makes the three and four rotor engines a reality. There are lots of engines running around the world, mainly in drag cars it seems. Probably the most notable are some in Puerto Rico as one there is currently the second fastest rota in the world. In Australia the best there is (was) the "Barbie" car, which is a BMW 3 series with a turbo quad in it, has 1130 rwhp so they say (approx 1400 hp) at engine. There are a couple of pp quad engines here, a mate has a n/a one and another guy a turbo version. Also several are in the build at the moment. If you want any other bits let me know , there are a few videos around too so I'm told. regards Jeff Bruce

 

what port U running ? I'm seriously considering a GT42RS or a GT45 , this twin **** is giving me nightmares !

 

Big street port
half bridge and beveled rotors

going to switch out the beveled rotors tho
not conviced they add anything

My friend has a 3 rotor
with my exact turbo and he gained 100rwhp by running only a downpipe
He had reduced to a 3 1/2 DP and exhaust

I run a 5" exhaust no breathing issues (not good for street use)
LOUD very very deep sounding but Loud!

 

damn kabooski how much power is his car making?

 

Well In that case it should be good on my semi pp ! what a/r U running ? i'm thinking the T4 housing with a 1.15 a/r would work well for me .

 

whatever happened with this? Did you, ahem, get the shaft?