Hypergear Turbochargers and High flow Services Development thread

[89CAL]

Stao, something that hasnt come up in a while: Variable Geometry turbos

I think last time you talked about this it was on hold due to the complexity of the task (Understandable of course) but was just wondering if theres plans to do anymore development with these this year.

[XRATED]

In a manual we don't usually sit on the 2~3000RPMs range, how ever the autos do use that quite often and with the long gear ratio and high drive tran lose, It acts as if it needs a tinny baby turbo down low with a huge turbo up top.

Unfortunately any thing smaller on the exhaust side is going to sky rocket upper range EGT while smaller comp will reduce top end power.

Roller bearing has no effect on the SS1xx series as the bear friction in those are already sit to be minimum. It probably need a VNT valve in the exhaust housing. I might be able to get that working and driven by an actuator.

Is there a twin scroll housing option for the ss1PU?

.... you know where I'm going with this :-)

cheers

Justin

[hypergear]

Thinking about it. can't run internal gate on that once converted tho.

[raZ1911]

Have you done any testing with Twin Scroll with your turbos?

[LANDSCRIBBLE]

f**k yeh...a hypergear makes it to the drags..haha

and nice work scott, sound like a fun setup

cheers

darren

Here ya go man, 13.6 at 176kph. Just couldnt get the thing off the line nicely last night. Will post some videos later of what i mean.

[GTScotT]

109mph at roughly 3000lbs = 320hp

What turbo is it mate?

[LANDSCRIBBLE]

Sorry that run was 172kph. When it was doing 13.9's and 14's it was 176kph. Its an ATR43g3 internal gate.

[GTScotT]

have you ever weighed your car?

knowing the correct weight you will be able to calculate the estimated power

[LANDSCRIBBLE]

Havent weighed the car yet no. Where would one go to do that? Junk yard? Lol

[Hanaldo]

Head down next week Luke? I'll be going next week.

[GTScotT]

Need to track down a weighbridge.

Have a full tank and nothing extra in the car that you wouldnt have when your at the drags.

[Brett_J]

Plenty of public weigh bridges around Perth, Landscribble.

Has anyone heard from Stao, sent a couple of emails off regarding eta on my turbo, haven't heard from him since mid last week.

[LANDSCRIBBLE]

Yea might do Martin. I wonder if i could adjust the rear spring settings to make it less stiff, would that help with axle tramp? I had the dampers wound all the way down (soft). The launch control wasnt doing me much good with mickey thompsons on. Rpm limit set to 4000, dumping the clutch it would grip within a second and just bog down at 2500-3000rpm, i dont get any power until 4400 lol..

[Super Drager]

Yea might do Martin. I wonder if i could adjust the rear spring settings to make it less stiff, would that help with axle tramp? I had the dampers wound all the way down (soft). The launch control wasnt doing me much good with mickey thompsons on. Rpm limit set to 4000, dumping the clutch it would grip within a second and just bog down at 2500-3000rpm, i dont get any power until 4400 lol..

With Mickey Thompsons try closer to 5500rpm launch mate.

[GTScotT]

having the dampers set all the way down isnt necessarily helping. thats not how suspension actually works.

you want the car to absorb some part of the power and to squat plus stay squatted.

having your damper set to zero is just gonna let the car bounce and rob you of power off the line whilst inducing wheelspin.

turn the dampers back up until you can feel the car solidly squat and stay down on a decent launch. A nice firm squat, not a free fall to the floor.

[jet_r31]

Here ya go man, 13.6 at 176kph. Just couldnt get the thing off the line nicely last night. Will post some videos later of what i mean.

Must not making alot of power atm for that mph, Stao should take his to drags..should do upper 120's...

cheers

darren

[t_revz]

at 109 mph, how much would Luke's car have to weigh to be on target for the power the dyno showed? 360ish rwhp from memory...

[jet_r31]

car "should" be between 115mph and 118 mph easy i would have thought..and 128 ish from staos..lol

cheers

darren

Edited January 24, 2013 by jet_r31

[Hanaldo]

at 109 mph, how much would Luke's car have to weigh to be on target for the power the dyno showed? 360ish rwhp from memory...

About 1540kg.

[Roy]

Yea might do Martin. I wonder if i could adjust the rear spring settings to make it less stiff, would that help with axle tramp? I had the dampers wound all the way down (soft). The launch control wasnt doing me much good with mickey thompsons on. Rpm limit set to 4000, dumping the clutch it would grip within a second and just bog down at 2500-3000rpm, i dont get any power until 4400 lol..

What was your 60ft? With worn semi slicks and circuit spec Bilsteins I ran a 12.9 @114mph with a 2.2 60ft with about 234rwkws. I didnt launch the car hard as was worried about std RB20 box. Just ride the clutch and touch the limiter in 1st if you are getting wheelspin and shift smoothly, not snatching or you just rip skids

LOL, thats my advice having done all of about 10 qtr mile runs in my life (oh my car weighed 1345kgs with 10L of fuel in it at PI weighbridge)