I have a Rover V8 3.5 low compression CR 8.13.1 engine which I want to Turbo charge, I plan to use the stock fuel injection setup (hotwire) and fit a single turbo. Would the stock injectors be ok for this or would I need to fit bigger injectors from a bigger rover V8? I have a good Garrett T3 turbo off a cosworth would this be too small? Thanks
Flappy box = early EFI so old injectors.
you need 4.2 efi jag flappy box (bigger hole) and injectors from same engine +2
I have the newer hotwire injection?
Check injector flow rate here ,then go to
this site and fine tune the parameters. It will tell you if your injectors are big enough, if not, go back to injector list to find
ones that are. Simples
how about a Supercharged V8 ? linky
no room for a supercharger, its in a lotus esprit and the front of the engine is very close to the bulkhead, it has a special small front pulley, remote water pump and the alternator is on custom mounts, its a real headache to work on!
Use a twin turbo set up, smoother power delivery and more of it, plus it will keep the exhaust gasses balanced better.
The only way of knowing if you need bigger injectors (before you build the thing) is to work out your target BHP from your planned boost (there are
equations to do this but they're estimates at best), then work out your fuel requirements (you'll need to adjust the BSFC to compensate for
the improved volumetric efficiency) and then work out the flow rate for your injectors from the Stan Weiss table and see if they're up to the
job.
Personally I'd stick with what you've got and monitor the duty cycle on the injectors when you first run up the engine. If it goes above 85%
I'd change to some bigger ones....
quote:
Originally posted by marcjagman
Use a twin turbo set up, smoother power delivery and more of it, plus it will keep the exhaust gasses balanced better.
quote:
Originally posted by BenB
The only way of knowing if you need bigger injectors (before you build the thing) is to work out your target BHP from your planned boost (there are equations to do this but they're estimates at best), then work out your fuel requirements (you'll need to adjust the BSFC to compensate for the improved volumetric efficiency) and then work out the flow rate for your injectors from the Stan Weiss table and see if they're up to the job.
Personally I'd stick with what you've got and monitor the duty cycle on the injectors when you first run up the engine. If it goes above 85% I'd change to some bigger ones....