Sävar Turbo Site

Hej allihopa, Jag letar efter input kring tändningstid för turbokonverterade B6304-motorer. Mitt setup: Motor: Volvo B6304FS (8:1 kompression) Internals: Kina H-profilstakar, originalkolvar och shims mellan cylindrarna Turbo: Holset Super HX40 16cm² Boostmål: 1,5 bar Grenrör: Tubulärt twin-scroll EC...

In my RB26, I have no squish at all. They are completely removed and the chambers looks like a HEMI and I think i have around 7.0:1 CR. With 264 inlet and 272 exhaust cams with 8.5mm lift and a GTX4088 turbo I make over 700 whp at 1.6 bar of boost. Compared to my friends RB26, with stock head 8.5 C...

Here's a website that discusses the effects of changing compression ratio - when it's positive for performance and when it's not. https://dsportmag.com/the-tech/education/performance-tech-compression-ratio-101-part2/ Article Part 1 is less interesting since it's just about measuring. I came across ...

"Ratio of Pressures Pe / Pi and Compression Ratio These quantities work together. The problem is that the presence of residual gas takes up room and lowers the volumetric efficiency. • See Figure 6-4. Higher compression ratios suffer less loss of volumetric efficiency as the pressure ratio incr...

dsimila skrev: ↑sön aug 04, 2024 5:44 am Det borde bli tommare i cylindern på slutet av avgastakten med mer kompression.

What about cylinder scavenging with low exhaust/intake pressure ratio?

Does compression ratio affect volumetric efficiency? If so, how?

I found the problem I think, The valve guides are severly worn and there was guide material on the valve, I guess it is my mistake because I used iron guides for stainless valves. is it possible that the valve got seized in the guide? I found another strange thing, I measured the lift of my camshaft...

I was at the first drift practise this season and when the motor got to the rev limiter the first time the lash cap jumped of the exhaust valve and got lodged between the valve and lifter. Do you have any idea other then valve float that would cause this to happen? Im using KLR-S/T5 and double valve...

Now everything is assembled :) https://uploads.tapatalk-cdn.com/20230730/f694e8598c4de227583627ac7e937b04.jpg https://uploads.tapatalk-cdn.com/20230730/9d1b11ec88822b7ef6254fe790d2e0d9.jpg https://uploads.tapatalk-cdn.com/20230730/f23257c107b803f6dfb1b9670e4a2297.jpg https://uploads.tapatalk-cdn.com...

More. https://uploads.tapatalk-cdn.com/20230728/7920ec1511f28fbf6fe52aeeee870a90.jpg https://uploads.tapatalk-cdn.com/20230728/108a081abfab79c90be253893ecd38e0.jpg https://uploads.tapatalk-cdn.com/20230728/2304fa539a47d724dc7bcd88fd4d7df6.jpg https://uploads.tapatalk-cdn.com/20230728/8252440fd1cd6b9...

Here are some pictures. If you notice, I weld the collector last. I would love to get some criticism about how I do this. https://uploads.tapatalk-cdn.com/20230728/c509b1215e5547c1f46ce2765e1c50df.jpg https://uploads.tapatalk-cdn.com/20230728/375af268ab640f866b141f4f03225cef.jpg https://uploads.tapa...

More progress and photos :) https://uploads.tapatalk-cdn.com/20220313/9e92c9beacd8d1abe6751d7a7618d083.jpg https://uploads.tapatalk-cdn.com/20220313/5634f50ef19c26556f795c1533d07214.jpg https://uploads.tapatalk-cdn.com/20220313/bd02ab02c49c5f665425f28d9cf8ca16.jpg https://uploads.tapatalk-cdn.com/20...

I have started modifying the exhaust housing :D https://uploads.tapatalk-cdn.com/20220216/bad426600e762cb0eb3134c4bda4e457.jpg https://uploads.tapatalk-cdn.com/20220216/0144e004063a7bafe01bd5d9c6d8a3ee.jpg https://uploads.tapatalk-cdn.com/20220216/5f086f6f524b787c9f290e572187a018.jpg https://uploads...

... almost every truck racer in Finland tried "spool valve" but there is a reason no one is using it anymore. Why? I had planned to try that with a new manifold for a big turbo RB26 Maybe the reason why the conventional spool valve is not used often is because it chokes the engine to much...

Borg Warner showed this at Sema 2014: https://photos.smugmug.com/Event-Coverage/NEV-SEMAparts2014/i-65PKLpn/35/f38d973b/L/IMG_6119adj-L.jpg https://photos.smugmug.com/Event-Coverage/NEV-SEMAparts2014/i-qSqwmpc/34/78cb4cb4/L/IMG_6118adj-L.jpg Yes I already posted a link about this turbocharger; http...