Hass Turbo 3 years later - Page 2 - LotusTalk

Harrybauls · 04-30-2007, 10:03 AM

Quote:

Originally Posted by Lotus F1

I notice the wastegate you mention says speicial low boost at 7psi. I just want to verify. This is 7psi base and not the limit right? I can boost 15-16psi if I adjust it to do so right?

Yup. Boost controller. Manual bleeder type, or electronic.

kverges · 08-21-2008, 12:17 PM

Wish I could change title to read 3 years later (almost). Still doing fine, but not driven a huge amount (probably only 9K with the turbo) due to other cars I also drive. After my Rota wheel disaster on track and replacing all the broken bits (frame survived and was straight when I checked alignment and corner weights) I decided to change the exhaust to go through a metal substrate cat and no muffler, straight back. I like the sound, and can now pass any emission test thrown at me with no noticeable loss of power. Car makes about 230 rwhp, not the power of some setups, but runs and runs and runs. With everything on board still under 2000 lbs without driver. Been averaging about 25 mpg city and highway and using boost a fair bit.

MaineLotus · 08-21-2008, 01:46 PM

Possibly one of the only remaining Hass turbos, although sounds like not much Hass in your setup now.

GTsRasta · 08-22-2008, 12:39 AM

And still on a dreaded greddy emanage ultimate tune.

I read through the piggyback black magic thread you made again, and I still don't see the exact problem with checking fuel trims every once in a while, and zero'ing them out. It has been working for you and jlitman thus far.

kverges · 08-24-2008, 10:22 AM

Maybe I should be more clear. I check the tune out of an abundance of caution but do not need to zero any fuel trims. The tune has been stable in closed loop mode. I really don't think the learn feature causes any fuel problem if you tune to be stoichiometric in closed loop and focus on open loop

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08-21-2008, 12:17 PM	#22 (permalink)
kverges Registered User Join Date: Feb 2005 Location: Dallas Posts: 702	Wish I could change title to read 3 years later (almost). Still doing fine, but not driven a huge amount (probably only 9K with the turbo) due to other cars I also drive. After my Rota wheel disaster on track and replacing all the broken bits (frame survived and was straight when I checked alignment and corner weights) I decided to change the exhaust to go through a metal substrate cat and no muffler, straight back. I like the sound, and can now pass any emission test thrown at me with no noticeable loss of power. Car makes about 230 rwhp, not the power of some setups, but runs and runs and runs. With everything on board still under 2000 lbs without driver. Been averaging about 25 mpg city and highway and using boost a fair bit.

08-21-2008, 01:46 PM	#23 (permalink)
MaineLotus 2zz parts scattered about Join Date: Feb 2005 Location: Maine Posts: 893	Possibly one of the only remaining Hass turbos, although sounds like not much Hass in your setup now.

08-24-2008, 10:22 AM	#25 (permalink)
kverges Registered User Join Date: Feb 2005 Location: Dallas Posts: 702	Maybe I should be more clear. I check the tune out of an abundance of caution but do not need to zero any fuel trims. The tune has been stable in closed loop mode. I really don't think the learn feature causes any fuel problem if you tune to be stoichiometric in closed loop and focus on open loop

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