1641cc twin scroll turbo

[Ghia Nut]

almost sounds like a supercharger, sounds like it builds pressure very quickly.
awesome car! This is the same as the medusa engine on thesamba right?

[70dragbug]

lets see where the rpm will oes. i hope a bit over 5000RPM peak. but with that small cam...we will see. its a totally street car right now.
and no in front its not a std break. its a csp disk one

Ah,who cares,you´re not mapping for brakes Just kidding - excellent work Chris! I´m really curious to see what you report on the VE analyzer and auto-tune function.

[yvre]

Hurray for small cc turboed engines!

[my_medusa]

no time for updating at the moment, i am driving and driving and driving
drove yesterday and today the hole day with 8 psi and that is more than enough at the moment but totay i will go to 10-11 psi to come into the most efficent island of the map, that low boost is to less for that turbo
it drives like a champ. that small throttle and low cam make it so nice for cruising and the fast spooling twin scroll push it like hell when hitting it and it rev more than i thought.

[Munchhausen]

it rev more than i thought.

Fuelcut? Sparkretard? (Iam just sharing the thrill)


munch

[my_medusa]

nono dont need it. my valves can go more than the cam. its just a little more than i thought and that is good.i did the mapping up to 6300rpm.

but the game is over. adjusted it to exact 0,75 bar (11psi) and that thing pulled so hard, eat a porsche boxter 987 and later drove with a friend for better mapping and pusched it real hard in 3rd over 5000 rpm and destroyed the gear. it was a fine toothed gearbox, so it was just a question of time. the twin scroll push so hard and fast this was the 4. sprint on the 3rd gear with 11psi and it was done. every sprind we did the map better and better and PENG!
so for next season i will build a real gearbox or let it build.

damn, that was just the half of the boost that i wanted to drive.
it was just a cheap gearbox, but damn, just 2 days of fun.

[Wally]

So, good results then! )
Great to hear Chris, keep at it!

[my_medusa]

damn she doesn't look fast

[70dragbug]

Congratulations Chris! It´s a perfect sleeper! I can just see the face of those gelled hair,gold necklace wussies in their 3 series BMWs or Golf VR-sick when you blast them at the light
A "jetzt 5PS stärker" sticker in the rear window would be a nice touch,too

[Munchhausen]

A "jetzt 5PS stärker" sticker in the rear window would be a nice touch,too

[my_medusa]

Congratulations Chris! It´s a perfect sleeper! I can just see the face of those gelled hair,gold necklace wussies in their 3 series BMWs or Golf VR-sick when you blast them at the light
A "jetzt 5PS stärker" sticker in the rear window would be a nice touch,too

i will ask if andi still has the sticker in stock...

did somebody ever used finisch dogring racing gears? price is high but i really like them. in 1-4. no more clutch needed to shift also.

[Wally]

did somebody ever used finisch dogring racing gears? price is high but i really like them. in 1-4. no more clutch needed to shift also.

No, but straight gears whine a lot. Bye, bye, street driving longer distances...

[my_medusa]

jussi wrote me today, that they are racegears..so no option for me.
tomorrow i phone with a good guy that maybe will build my box during the winter.

[Kalle]

Thanks for sharig my_medusa, very inspirational!

[my_medusa]

engine bay. a seal on the hood is missing in this pic, but it' also cleen and kind of nice looking.