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20G Turbo super laggy help!

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DSM Chase

10+ Year Contributor
778
51
Sep 19, 2011
Senoia, Georgia
This weekend i went to the track and all i could manage was a 13.1 @ 104 with a 1.888 60' With my Hahn racecraft 20G. I realize the turbo has the big 10CM hotside, and that could be causing the lag, I mean every gear its like a pretty big delay for my boost to get to around 22PSI. I have ECMlink V3 so maybe i just need more tuning. Also would an EVO 8 Maf help any?
 
hmmm. full boost by 4k on a 20g. Sounds resonable but I'm only comparing to my expierience with a 16g. With a 10cm hotside it sounds about right. I know JusMX141 will be on this one in a minute LOL
 
For better response between gears a suggestion would be to set up a NLTS. It works great for keeping boost between shifts. I also noticed you 60' seemed a little on the slow side to boot. Maybe launch at a higher rpm or get a 2-step to help solve the problem
 
Not trying to be condescending but the maf maxes out some where in the 500hp range give or take. I doubt you are near that mark right now. It would be good to know your readings though. I have seen on here where people have actually kept the stock fpr and tuned without the aftermarket fpr.
 
Make sure that you do not have any exhaust leaks before your turbo, that would definitely affect your spool time. Otherwise, everyone else's answers are spot on!
 
I would say the 10cm hot side is the culprit. Its not going to help much with the 7cm. Maybe 3700-3800. I don't think the 3g mas will help at all. I went from a 1g mas to a 3g, and noticed a big difference. That was when I was on 20psi with my s16g though. The 2g mas is fine.
 
With the 10cm hotside, that sounds about right. I see full boost ~25psi about 3500-3700 on a 7cm ported to hell hotside.
 
Anyone who is running a "record time" on this turbo is going to be 30psi plus. I would excpect low-mid 12's but the trap is fairly low.
 
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