Search found 245 matches

by gtv-racer
Sun Jun 06, 2021 11:32 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

This is a donut from a bmw 123D wich has 400Nm of torque and also has the box upfront. So torque through the donut won't be an issue. It's from our trackday tool. You can see i removed one washer. The bmw donut has a pitch diamter of 110mm which is the same as our v6 big pich diameter. But the small...
by gtv-racer
Wed Apr 28, 2021 11:07 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

Thanks again for the pics! My front donut lasted about 10.000km. Not bad I think. About 6 track days and one drift day. I made a cage before but the slots weren't wide enough for my torque figure so it rattled under max power.. I ditched it. Let's see how quick the new donuts fail and if it 8s to qu...
by gtv-racer
Tue Apr 27, 2021 9:33 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

Haha, what a story. :mrgreen:
Thanks for the pic's but I am also curious for the front solution.
by gtv-racer
Sun Apr 25, 2021 10:58 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

Zanami I have the splined front axle. The rear donut is on the photo. MD. That sounds really good. Do you now people who have tried it on the transaxle with high horsepower cars. And how does certering work. It does not have any alignment hole and also you need something to cover up the pilot bearin...
by gtv-racer
Sat Apr 24, 2021 8:45 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

dyno results are in and i must say i'm verry satisfied. An 45HP increase and 45NM that counts a total of 355HP and 465 NM. https://myalbum.com/photo/fyoNC9eWxL5C/360.jpg https://myalbum.com/photo/yrM47eSY6mZv/360.jpg also nice to see that the power curve's flat spot at the end is a little bit less f...
by gtv-racer
Fri Mar 05, 2021 1:54 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

flowing the supercharger results. 0.15bar boost increase. delta temp stays about the same. i need some torque control for first gear! i have never seen preassure that high, 0,9 bar :D The car felt really quick! 8) That's a 20% boost increase from 0.75 to 0.9bar. Lets see how this translate's to hp i...
by gtv-racer
Mon Dec 21, 2020 12:16 am
Forum: Race Cars and Track preparation
Topic: SA GTV 6 race car - 3.4 L 24v, 350whp at 5800ft
Replies: 7
Views: 757

Re: SA GTV 6 race car - 3.4 L 24v, 350whp at 5800ft

What a cool project. Please sent more pics!
Like the looks of the nice and tidy bottem!
Hope i never have to convert to a front mount but who know's.
by gtv-racer
Thu Dec 17, 2020 11:55 pm
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

Installed an oil heatexchanger parralel to the oil cooler. It took nearly 25 min for the oil to heat up on a warm day. https://myalbum.com/photo/su6EdDsNJV8t/540.jpg Used the plug in the blok to get a coolant feed: https://myalbum.com/photo/aGBachMQyim2/540.jpg Already checked oil preasure on the co...
by gtv-racer
Wed Nov 25, 2020 12:18 pm
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

Ported the blower for lower temps. They sky rocket wonce you exceed the 14000rpm limit where the normal m62 unit was designed for. So I copied the inlet side of an mp62 unit which is the performance model and can rev up to 16000rpm. Made a section view of the rotor and copied the contour: Before: ht...
by gtv-racer
Sat Nov 21, 2020 11:35 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

Had two oil leaks on both valve covers. So removed them. Also made some baffleling in them while I was at it for the crank case breathers so they won't suc up oil which is bad for detonation and a lot of other stuff. https://myalbum.com/photo/dnDNRDTgAoDg/540.jpg https://myalbum.com/photo/6teMQPRX7z...
by gtv-racer
Tue Sep 29, 2020 6:22 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

http://www.autodeltashop.com/product_in ... cts_id=353

This is what autodelta sells for the 3ltr 24v with a rotrex. Rotrex is more efficient on high rpm. But can the lower cr of the 2.512v make up the 3.0 24v with higher cr and more breathing capacity?
by gtv-racer
Sun Sep 27, 2020 10:38 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

Probely not. 9.5 is still to high. I went in a knock limited power band with my 9.5 cr and couldn't push it further than 310hp. That's why I now run lower cr. Also 1 bar is probably a bit low but I don't know how efficient the sprintex blowers are?
by gtv-racer
Sun Aug 30, 2020 1:54 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

timing light was broken. It was a brand new one.
Bought an other one without rpm calculation and without a timnig you can set on the timing light because i heard a lot of bad stories from them when i searched the web.

Finaly we can drive again! :)
by gtv-racer
Mon Aug 24, 2020 2:50 am
Forum: Performance
Topic: road and race performance parts
Replies: 3
Views: 920

Re: road and race performance parts

lot's of nice wanna have goody's!
by gtv-racer
Mon Aug 24, 2020 2:36 am
Forum: Performance
Topic: Building the supercharger to the engine (75 3.0V6)
Replies: 270
Views: 85516

Re: Building the supercharger to the engine (75 3.0V6)

Had a nice vacation in France for a coulple of weeks. Thanks for the thinking guys. A new ecu would be very nice. It also is a lot of work. I have to learn myself all the new software. Rewire the engine becuase it is set for batch injector fire. Install a camshaft angle sensor. I orderd a new timing...