Tunemanskos0195 Posted November 28, 2014 Report Share Posted November 28, 2014 Hi friends! In another post (A10 U-nite), I posted some pics of my 1979 Datsun Violet SSS, showing a blow-thru setup in my engine. I'm using an MHI TD04 for these project. Uh... The system that I'm use, collapsed a few days ago. Carbs and engine aren't damaged. Whatever, I'm planning convert my setup into a draw-through system using this "stock" turbo and the SU stock carb (one carb only). I am not considering to use an EFI system because costs are too higher. Experts, help me please! If the turbo don't have a carbon seal, how much time the thing can resist? (Sorry for my English, again haha) Thanks! Quote Link to comment
datzenmike Posted November 28, 2014 Report Share Posted November 28, 2014 No idea. As you are doing it anyway, just do it and see. When the turbo is well spooled up and you let off the gas the throttle closes but the turbo keeps sucking as it slows down and will produce an extreme vacuum in the intake. Oil can get sucked past the seal. Make sure the SU runs VERY rich at high speed under boost. Quote Link to comment
paradime Posted November 28, 2014 Report Share Posted November 28, 2014 As you will be drawing fuel through the turbo you really should replace the intake turbine bearing with a sealed bearing. Without it fuel will can get into oil and your turbo will fry. Check out the510realm.com and look for a thread by okfine. I think it's called Whitebird. He documented his attempt with a draw through setup on his 510 Coupe and gives all the information you'll need to replace the bearing and much more. You may also want to look up Smoke here on ratsun. He's done many non EFI turbo setups and really knows his shit. Best of luck Quote Link to comment
Tunemanskos0195 Posted November 28, 2014 Author Report Share Posted November 28, 2014 Thanks friends! I can't find these post in the510realm.com, please post the link if it's still valid. But in another post here in Ratsun, a user says that his turbo was fried because don't have the carbon seal (same turbo that I'm using). No way, I must looking for a turbo with carbon seal. Blessings! Quote Link to comment
paradime Posted November 29, 2014 Report Share Posted November 29, 2014 http://www.the510realm.com/viewtopic.php?f=27&t=10313&start=255 Starts on page 18 1 Quote Link to comment
Tunemanskos0195 Posted December 2, 2014 Author Report Share Posted December 2, 2014 Thanks to you very much! Quote Link to comment
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