New results! Twin turbo 4.8
08-02-2015, 09:09 AM
#11
Did you file the rings at all? 25 PSI is very high. The problem people get into is when the rings butt and break a piston. The stock pistons will shatter sending debris through your turbine. I blew one up at 12 PSI on a supercharged engine with back to back pulls and very high temps. It was my own stupid fault, but when they go, they ruin everything. I'm currently doing an LY6 that has filed rings.
Very impressive video by the way. Looks like a fun ride.
Very impressive video by the way. Looks like a fun ride.
I did run it at the track this weekend and managed a new best of 11.09@122mph 1.64 60ft
Also beat a 750hp lightning 2 times in a row so I was quite happy with the truck
08-02-2015, 11:08 AM
#12
Did you file the rings at all? 25 PSI is very high. The problem people get into is when the rings butt and break a piston. The stock pistons will shatter sending debris through your turbine. I blew one up at 12 PSI on a supercharged engine with back to back pulls and very high temps. It was my own stupid fault, but when they go, they ruin everything. I'm currently doing an LY6 that has filed rings.
Very impressive video by the way. Looks like a fun ride.
Very impressive video by the way. Looks like a fun ride.
08-02-2015, 12:59 PM
#15
Formerly ScreamingL
230 is about 50* hotter then supposed to be....can run 20* but have to have right fuel and motor has to be cool
Pistons based on rear cylinder temps exceeding safe limit and coming in contact with walls
If laptop says 230 your rear cylinders are 250-260*
This is why it's a must to keep motor cool when boosting
Pistons based on rear cylinder temps exceeding safe limit and coming in contact with walls
If laptop says 230 your rear cylinders are 250-260*
This is why it's a must to keep motor cool when boosting
08-02-2015, 01:13 PM
#16
I hit like 190-195 by the end of the pass. It's set to start pulling timing at 150. So I went from 18* timing to 10* by the end of the pass. Also running the innovate scg-1 boost controller and I haven't quite set it up right. It was supposed to make 18psi and I had the boost cut set at 18.4psi and 100% cut, so when it shifted third gear the boost spiked to 19psi and it automatically dropped boost back to spring pressure which is 13psi.
There's a few things that need adjusting yet but I'm very confident that when its all lined out and the weather cools down it will run low 10s.
There's a few things that need adjusting yet but I'm very confident that when its all lined out and the weather cools down it will run low 10s.
08-02-2015, 02:32 PM
#19
Formerly ScreamingL