Sznaps

x2

does it produce proper boost values ? I have not met roots supercharged car that would not whine with cone filter (did play with 5 of those). Hell no! this lady is all mine! ;-)

my friend likes to experiment with his camera and I like rolla pics. win-win ;-)

I guess its the matter of preference. When I heard it for the first time the first thought was "damn something broke!" but after that I simply started enjoing the sound it really is quite a cool bonus at least for me. During some straight line race when bvalve fires up i have feeling as if I was entering 88-miles-per-hour-mode from back to the future :-) This sound can be silenced by not using cone filter but instead attach some box filter to bypass valve. Its like with supercharged engine - when you have cone filter on it you can always hear supercharger whine when its working but when you use box filter you can hear almost nothing.

got one more follower on this one. these big rimms just look crazy good on this chassis.

I see positive spirit in your and your car mate. keep cool news flowin.

fibreglass copies - getting ready for any possible disaster ;-)

hehe crazy :-) I will throw some of my lame driving at you guys ;-) I was testing what times would I make when driving mostly on 3rd - did not turn out well the stretches were just too short. Its the only one vid I have from inside.

A little curious if anybodys watching this content ;-)

having fun with fellow 4age people

80-200 4th gear 100-200 5th gear

0-200 100-200 3rd/4th gear

dyno

ouuu yeah. Bring this beauty back to life man!

it means that bypass valve opens which basically makes hole in air intake piping between supercharger and turbo. Through that hole you hear still working supercharger which at this very moment is being disengaged. roots Supercharger is a very loud thing you know. Normally it is being silenced by piping and air box - but such hole makes all noises get free,

KM=HP first just Audio - had just my phone when driving so I just put it in passenger seat and recorded sound. listen to the end.

Allright guys the setup received bypass valve which opens when supercharger is disengaged and lets turbo breath freely with nice cold air through second intake. We have tuned it and I have let myself have lots of runs today. Got few things to share when I manage. But lets start with numbers. We made test run on just turbo with bypass valve constantly open so supercharger is not used. The run was on 1.5b because we were curious what the numbers would be with higher boost. But also we can compare the characteristics of just turbo to twincharge system on same engine. If you look at charts below you will notice that twincharge simply has torque line plain and stretched throughout all rpms when compared to turbo. Also what is not visible on charts - in twincharge setup you have boost everywhere and whenever you want. But lets get to the point. How it was - twincharge - 1.2b - turbo sucks constantly through supercharger (engaged and later on disengaged) How it is now - twincharge - 1.2b - turbo sucks through supercharger but when its disengaged bypass valve opens and turbo sucks nice cold air though second intake. Impressions - Its better :-). Without bypass valve when turbo was getting over disengaged supercharger I could feel dip in power. Not much but there was and even the top rps were good I knew it could be better. Now its like lift or vtec engaging. As a bonus there are cool sounds when bypass opens. When it opens and supercharger still spins you can hear for a moment whats happenning inside intake. It sounds a bit like plane hiding landing gear. Got some recording of that wanna hear? :-)

A taste of things to come (unless we blow up something). Soon the twincharged tuning with workingbypass valve. The target max boost is 1.3. Just out of curiousity we did one run with just turbo with bypass valve wide open on 1.6bar boost. Anyone curious about the result?

i read this and now i am backuping my car pics ;-)

ok bypass valve and coils ready. Waiting for ecu adjustments. can't wait ;-) Fingers crossed.

and what if I fitted one of these :-) how hard can it be just kiddin :-)

yes the ones I'm using are Toyota coils made by Denso No. 90080-19021 (these particular ones are from Yaris model I think)

I removed oem 4agze dual coil packs and i am in progress of installing these sweet independent ignition coils. Also bypass valve fully operational hopefully also will be completed this week.

I am going to install bypass valve so the twincharged system can show full potential by breathing freely in high rpms. I found a perfect candidate for the switch - Nissan Maxima 3,5l v6 throttle body. Its an electronic one and seems to be working just fine for my needs.