FAQ  •  Login

Engine tips needed?

<<

ZanBay

User avatar

Posts: 38

Joined: Sat Aug 03, 2013 5:38 am

Cars: Volkswagen Golf 1.4L

Post Sun Jan 24, 2016 12:15 am

Engine tips needed?

Hey

I'm trying to design an engine with 150-200hp that gets decent reliability & fuel economy. I would like it to be I4 with Turbo.

Any tips on the best parts & settings?
<<

squidhead

User avatar

Posts: 911

Joined: Fri Oct 23, 2015 1:36 pm

Cars: BMW E34

Post Sun Jan 24, 2016 12:44 am

Re: Engine tips needed?

Well... have you tried building it yourself? Did you get any problems with your design? Where are you at with it? What would you like to improve?
<<

ZanBay

User avatar

Posts: 38

Joined: Sat Aug 03, 2013 5:38 am

Cars: Volkswagen Golf 1.4L

Post Sun Jan 24, 2016 1:00 am

Re: Engine tips needed?

I have a 1.6 i4 getting 134hp & 0.420lb economy, I'd like to keep the economy at that level but be getting 160hp instead.
<<

squidhead

User avatar

Posts: 911

Joined: Fri Oct 23, 2015 1:36 pm

Cars: BMW E34

Post Sun Jan 24, 2016 1:10 am

Re: Engine tips needed?

lower cr, up the boost.
<<

ZanBay

User avatar

Posts: 38

Joined: Sat Aug 03, 2013 5:38 am

Cars: Volkswagen Golf 1.4L

Post Sun Jan 24, 2016 1:28 am

Re: Engine tips needed?

Noob question but what is CR?
<<

squidhead

User avatar

Posts: 911

Joined: Fri Oct 23, 2015 1:36 pm

Cars: BMW E34

Post Sun Jan 24, 2016 1:34 am

Re: Engine tips needed?

Compression Ratio. You'll be making your combustion chamber a bit bigger, allowing for more pressure to be safely created during combustion, which will come from more air being pumped into the engine by the bigger turbo
<<

cpufreak101

User avatar

Supercharged
Supercharged

Posts: 816

Joined: Mon Dec 15, 2014 5:28 am

Location: My Bedroom

Cars: no license right now but i'll be getting a 2006 Chevy Trailblazer LS once i do get one

Post Sun Jan 24, 2016 9:50 am

Re: Engine tips needed?

hmm... i might look into making something for this, what year you building in?
Company Id:1945270
Galt Motors, excelence since 1945
(PS, Galt automotive is still Galt motors, i use it interchangably)
<<

07CobaltGirl

User avatar

Queen of Track Building

Posts: 1613

Joined: Sun Dec 08, 2013 11:47 am

Location: Atlanta, GA, USA

Cars: Chevy Cobalt

Post Sun Jan 24, 2016 11:56 am

Re: Engine tips needed?

Here is a set to tinker with. 3 engines based on a single family. 1.4L, 1.6L, and 1.8L turbo I4s producing 131, 157, and 169hp respectively. With some tweaking, there is more room left in them. Alternatively, these are all 2000 tech year MOHV=12 engines. Converting it to OHC or DOHC 4 or 5 valve would give them a lot more room for improvement.

Image
Image
Image

07CobaltGirl - 07CobaltGirl-TurboTest-I4.zip
(114.49 KiB) Downloaded 212 times
<<

Dragawn

User avatar

Turbocharged
Turbocharged

Posts: 391

Joined: Fri Jul 05, 2013 1:02 am

Cars: A high tech sportscar consisting entirely of air!

Post Mon Jan 25, 2016 3:33 am

Re: Engine tips needed?

Please note that at the moment turbo tech ingame doesn't exceed 80's level as far as I've heard, with no anti-lag systems implemented. Turbos are planned to get a big overhaul later. Anyways, this means that the spool up is slower than actual modern turbo engines, thus combining both economy and power with a turbo ingame is quite hard, since economy pretty much requires the turbo to spool up at about 2k rpm. A high AR ratio (roughly 0.8-1) with a small turbine helps with this.

Here's a quick attempt of me to compromise, I'm not a pro in this like for example Oppositelock is though.
Image
<<

john7986

Posts: 1

Joined: Mon Jan 25, 2016 4:35 am

Cars: 1995 ford f250
1993 gmc jimmy
1984 ford ltd fox chassis wagon(project car)

Post Mon Jan 25, 2016 4:42 am

Re: Engine tips needed?

I built a 2.0 L I4 with 300 h.p. no turbo and gets great gas mileage. Leaning out your A/F ratio and upping C/R improves economy.

Return to Engine Sharing Forum

Who is online

Users browsing this forum: No registered users and 0 guests

cron