10:1 Compression, Too High to Turbo?
. ( However its a diesel )
09-27-2007, 11:31 AM
#14
1.5 BAR
Join Date: Jul 2007
Posts: 752
Re: 10:1 Compression, Too High to Turbo?
Originally Posted by circleburner
The new Evo's has a 11-1 compression ratio! but a Magical feul managment system that keeps them in the game....
i say go for it. there are a lot of pussies and weak minded ******* on there like "copex". if its tuned right WITH A MEGASQUIRT or similar, it will be hunky dory. i've never heard of one being blown on that boost that didnt crack/melt a piston. if the rods are like the kl-de though, you might have some issues with bendage if you push it past 10psi. they are pencil thin, not sure about the kl-ze rods.
09-27-2007, 02:37 PM
#15
0.0 BAR
Join Date: Jul 2006
Posts: 0
Re: 10:1 Compression, Too High to Turbo?
Originally Posted by fe3tcourier
if the rods are like the kl-de though, you might have some issues with bendage if you push it past 10psi. they are pencil thin, not sure about the kl-ze rods.
09-27-2007, 05:19 PM
#16
1.5 BAR
Join Date: Jul 2007
Posts: 752
Re: 10:1 Compression, Too High to Turbo?
torque bends rods, psi generates torque. for that matter psi generates hp too, but its the torque that matters. revving high for more hp will end up not with a bent rod, but with one through the side of the block with no cap and broken bolt(s).
09-27-2007, 05:27 PM
#18
0.0 BAR
Join Date: Jul 2006
Posts: 0
Re: 10:1 Compression, Too High to Turbo?
Originally Posted by fe3tcourier
torque bends rods, psi generates torque. for that matter psi generates hp too, but its the torque that matters. revving high for more hp will end up not with a bent rod, but with one through the side of the block with no cap and broken bolt(s).
Im not arguing your theroy cause I cant. I fix PC's not Cars. this is just something I love doing and learning more about.
09-27-2007, 05:59 PM
#19
1.5 BAR
Join Date: May 2007
Posts: 749
Re: 10:1 Compression, Too High to Turbo?
Originally Posted by 97EconoBox
Ok so Im not being a dick here honestly but if this is the case lets say I have a bone stock D series. If what your saying is true then I should be worried about running 25 PSI in a little T25 but Id be just fine with 12 PSI from a 60-1?
09-27-2007, 07:47 PM
#20
1.5 BAR
Join Date: Nov 2006
Posts: 1,453
Re: 10:1 Compression, Too High to Turbo?
My 1st ever turbo car was a 1983 Saab 900T and it was 10:1 CR. I ran a Garrett T3 at over 1 bar and it did just fine for over 150k miles. I sold it, and to my knowledge it's still running strong with over 500k miles on the original motor and tranny at almost 16psi which is easily 200whp. Gotta respek dem old Swedish beasts. Sure they look like turtles, but have a closed deck iron block ftw.
After all the reason turbocharging is so rampant nowadays is because of Saab ( mid 70's OG 99 w/ 2.0L 8V turbo). You don't need a standalone for them either. Easy as hell to chip the Bosch (Jetronic? Motronic?) computer.
After all the reason turbocharging is so rampant nowadays is because of Saab ( mid 70's OG 99 w/ 2.0L 8V turbo). You don't need a standalone for them either. Easy as hell to chip the Bosch (Jetronic? Motronic?) computer.
