Wayne's boosted 8 project

[Mr Spiller]

It’s a bit tight
One bolts snapped so it’s off now re drill - tap and loosen up
It was a bit stiff too


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I rekon you can modify that a little bit? Cut the straight piece out and use some 45s to negotiate around the UJ?

What diameter is that UJ, it looks slimmer than mine as mine was off the mx5 rack

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Grant you’d be surprised how far out it is
We will modify to suit as it’s only the rest pipe .
I’ll measure the bore later , it’s same size up to the turbo flange and reduces at that point
UJ is 120 mm long 40 mm wide


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[Mr Spiller]

Next bit if Advice  please
Current pipe from turbo Is quite big

At what point do I reduce to 75mm
Fabricator is unsure as he don’t know a lot about Rotary’s
Bit like me I suppose


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[Grant Monkhouse]

Why are you wanting to reduce it down?

If you are doing then do it as for back as possible, people generally step up the exhaust size to help the exhaust "flow" (the term flow is what a lot of people use and I just don't get it)

If you reduce the pipe down then you are going to increase back pressure which is not good for rotaries.... However if your not measuring these then you won't know will you so doesn't matter

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[re japi]

If that is going in to turbo from air filter, do not reduce it. Turbo intake size needs big bore to lett air flow freely.

If reduction is absolutely necessary, you can reduce size for very small lengt but still its not a good idea.

If reduction is for after turbo, so called pressure side of piping, it doesent matter so much. However, really big reduction can cause "friction"

Cant explain it properly...

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[re japi]

Next bit if Advice  please
Current pipe from turbo Is quite big

At what point do I reduce to 75mm
Fabricator is unsure as he don’t know a lot about Rotary’s
Bit like me I suppose


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Umm, wait. Is that from turbine/exhaust side? If it is, dont reduce it atall. Just noticed Grants answer and he is right, these things hate back pressure

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[Mr Spiller]

Thanks both
I probably should have asked “ should we reduce it “ not where
That’s good news as the downpipe is a perfect fit in the engine bay so no modification needed
Thanks again
I’ve ordered a new LIM so waiting on that now which will be a while . I am happy as I’m now in a position where I know what I have and have a shopping list of parts required .


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[Grant Monkhouse]

Which have you ordered? Have you got the fuel rail for it also?

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[Mr Spiller]

Which have you ordered? Have you got the fuel rail for it also?

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Yep I ordered both from xcessive
Paid for it start of week but haven’t had any shipping details as yet 
Thanks for the link


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[Grant Monkhouse]

Have you got injectors?

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[Mr Spiller]

Have you got injectors?

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Nope
None yet


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[Grant Monkhouse]

I was going to order some of the Injector dynamics 2200 cc ones but they cost a fortune, I'm going to be getting the bosch 2200 injectors, 8 of them because im going to run methanol, and they're only 100 Australian dollars each

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[Mr Spiller]

I was going to order some of the Injector dynamics 2200 cc ones but they cost a fortune, I'm going to be getting the bosch 2200 injectors, 8 of them because im going to run methanol, and they're only 100 Australian dollars each

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Send me a link or order mine and share postage then , I do worry when buying Injectors . My cousin bought some from e bay and they were copies . Ruined his forged pistons in his MX5
Stupid question , why 8 if your running water meth ?


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[Grant Monkhouse]

I was going to order some of the Injector dynamics 2200 cc ones but they cost a fortune, I'm going to be getting the bosch 2200 injectors, 8 of them because im going to run methanol, and they're only 100 Australian dollars each

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Send me a link or order mine and share postage then , I do worry when buying Injectors . My cousin bought some from e bay and they were copies . Ruined his forged pistons in his MX5
Stupid question , why 8 if your running water meth ?


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No I'm going to run methanol for fuel. It just makes things easier in the long run, oxygenated racing fuel is really expensive. Methanol is a lot cheaper even though you have to use more to make the same hp, But you can make more hp with methanol because it has oxygen in it etc

Also mean I can sack off using an intercooler too.

I'm not ordering them just yet, as I'm waiting until I'm back at work as I'm getting a lot of stuff at once from Australia.

Need to make sure your ecu can control the injectors, which I think it can, because it's a new one. Something in the back of my head tells me you had to do something when using a 1680cc Injector on the apex ecus used in rx7s, something to do with low/high impedance

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[Grant Monkhouse]

http://microtechefi.com/product-category/engine-management/fuel-system-components/

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[Mr Spiller]

http://microtechefi.com/product-category/engine-management/fuel-system-components/

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Thanks grant


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