12A Turbo VIDEO whats up with my motor?
#26
Wheel Revolutionist!
Thread Starter
On second review - I am not sure fuel pressure would be an issue at the RPM's your playing with right now. The engine seems to hesitate all through the band. At this point I am not sure too much fuel pressure is the issue.
1.) Have you checked float levels?
2.) Did this car ever run with this setup?
3.) Those Webbers are insane to tune... Then you throw in a huge turbo!
4.) What happens if you put your foot on the floor ... will it pull through the hesitation or stall?
1.) Have you checked float levels?
2.) Did this car ever run with this setup?
3.) Those Webbers are insane to tune... Then you throw in a huge turbo!
4.) What happens if you put your foot on the floor ... will it pull through the hesitation or stall?
2). This setup was on different 12a but it worked for him
3.) Its a Dellorto and is my turbo really that big?
4.) 1st gear. Hesitate/sputter 4000rpm+ = then ZOOM
2nd gear Hesitate/sputter then 4000rpm+ = ZOOM
3rd gear Hesitate/sputter sometimes STALL other times ZOOM
4th gear very slight hesitation but then boosts about 5psi and pulls pretty hard.
#27
The Shadetree Project
iTrader: (40)
It hesitates becuase at WOT it sucks all the fuel out of the float bowl then falls flat on its lean face. Think about a hose if you turn it on and put your finger over then end you get more pressure and less flow. you need a higher flow rate fuel pump. the del will not like anmore than 4 psi, but it needs to have a steady flow of fuel. Draw through setups are not as driveable as blow through, but are simpler to setup. Get a real fule pump then get a decent fuel pressure regulator then we can trouble shoot from there, but that is your biggest and most important problem right now.
#28
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Join Date: Jan 2009
Location: caboolture
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do you have a carbon seal in the turbo that could be y its blowing smoke. it could be shutering couse iv read what ever boost your running your fule pump needs to be 3 or 4 psi higher. thats what ive read i new to this carby turbo thing.
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