t16turbo
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| posted on 16/6/10 at 08:57 PM |
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rover v8 turbo
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
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mark chandler
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| posted on 16/6/10 at 09:11 PM |
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Flappy box = early EFI so old injectors.
you need 4.2 efi jag flappy box (bigger hole) and injectors from same engine +2
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t16turbo
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| posted on 16/6/10 at 09:15 PM |
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I have the newer hotwire injection?
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40inches
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| posted on 16/6/10 at 09:18 PM |
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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 
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mcerd1
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| posted on 16/6/10 at 09:34 PM |
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how about a Supercharged V8 ? linky
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t16turbo
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| posted on 16/6/10 at 09:49 PM |
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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!
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marcjagman
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| posted on 17/6/10 at 09:15 AM |
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Use a twin turbo set up, smoother power delivery and more of it, plus it will keep the exhaust gasses balanced better.
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BenB
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| posted on 17/6/10 at 09:34 AM |
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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....
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t16turbo
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| posted on 17/6/10 at 10:03 AM |
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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.
my exhaust will be gasses will be balanced, I have a cross over system both banks meet at the centre of the engine above the gearbox. Twin setup would
be better but I dont want all the hassle of extra pipe work etc.....
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t16turbo
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| posted on 17/6/10 at 10:04 AM |
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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....
the thing is how much boost power a stock rover engine will take? I would like as much power as it will take!
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