:::RHMT::: Real Home Made Turbo

General Category => Engine Management => Topic started by: hamburgler on October 27, 2011, 01:08:45 AM

Title: tuning for quick spooling and throttle response (t3 b18b1)
Post by: hamburgler on October 27, 2011, 01:08:45 AM
would running 20* timing at 5psi at 3000rpm increase the spool time as opposed to 15* timing at 3000 rpm.  I have always done the step retard in the past so with a quick spooling turbo at low rpm the timing drops big time which i suppose makes the throttle response not as good.
Title: Re: tuning for quick spooling and throttle response (t3 b18b1)
Post by: PhilStubbs on October 27, 2011, 09:00:22 PM
retarded timing spools turbos
Title: Re: tuning for quick spooling and throttle response (t3 b18b1)
Post by: Teg2boo on October 27, 2011, 10:12:37 PM
retarded timing spools turbos

Unlike retarded people
Title: Re: tuning for quick spooling and throttle response (t3 b18b1)
Post by: hamburgler on October 27, 2011, 11:22:38 PM
retarded timing spools turbos

I could see that if I wanted to build boost at idle but in terms of throttle response...  Advancing the turbo from vacuum to low boost seems like it would have better throttle response
Title: Re: tuning for quick spooling and throttle response (t3 b18b1)
Post by: PhilStubbs on October 28, 2011, 06:53:58 AM
Yea guy sure, retarded timing spools turbos at 1k rpm but not 3k. Makes complete sense.

Anti-lag is super retarded timing at your launch rpm 5-6k. That's not idle.

As a fun experiment, do a pull with your current tune, then retard the timing a few degrees, you will have higher boost the whole pull
Title: Re: tuning for quick spooling and throttle response (t3 b18b1)
Post by: hamburgler on October 28, 2011, 09:19:02 AM
Yea guy sure, retarded timing spools turbos at 1k rpm but not 3k. Makes complete sense.

Anti-lag is super retarded timing at your launch rpm 5-6k. That's not idle.

As a fun experiment, do a pull with your current tune, then retard the timing a few degrees, you will have higher boost the whole pull

Ya but the increase in boost wouldnt offset the loose in power from timing.  I will try to see - I am trying to get that free wheeling feeling but maybe only ball bearings will do that.
Title: Re: tuning for quick spooling and throttle response (t3 b18b1)
Post by: PhilStubbs on October 28, 2011, 09:38:26 AM
I never said it would. I'm just telling you how to spool a turbo faster. Statistically proven by statistics that prove it.
Title: Re: tuning for quick spooling and throttle response (t3 b18b1)
Post by: Joseph Davis on October 28, 2011, 10:02:20 AM
Size the turbo correctly, get a different cam.  A straight T3 on an LS is nothing you make threads about wanting to enhance the spool on. 

This thread is :(