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1293 Turbo Engine


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#31 Anthony30

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Posted 12 March 2018 - 09:46 PM

You'll find it hard to stick with low boost! It's addictive

The reason I want to make the bottom end strong/reliable. I will take it easy at first, because It's a new engine, then pile on the boost over time. And a dump valve, because it has to be done, even if it's classed as 'chavy'. 



#32 jt19

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Posted 12 March 2018 - 10:15 PM

Dump valves are important to save the turbo from stalling. Which can supposedly break the turbines.

#33 Anthony30

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Posted 18 March 2018 - 08:08 AM

Playmini 2 inch. :D

 

29244163_891199191061541_335729012915448



#34 Steve220

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Posted 18 March 2018 - 09:15 AM

Playmini 2 inch. :D
 
29244163_891199191061541_335729012915448


Out of curiosity, is it 2 internal diameter piping or just the tailpipe and is it stainless?

#35 Anthony30

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Posted 18 March 2018 - 03:47 PM

 

Playmini 2 inch. :D
 
29244163_891199191061541_335729012915448


Out of curiosity, is it 2 internal diameter piping or just the tailpipe and is it stainless?

 

I assume It's ID. It's 2'' all the way to the backbox, and the tail pipe is 2.5''. The downpipe is 3'' at the elbow, then 2'', I believe. It's made to fit a 2'' exhaust.



#36 Steve220

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Posted 18 March 2018 - 04:53 PM

Im worried itll be too restrictive for the power Im after.

#37 Anthony30

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Posted 18 March 2018 - 07:06 PM

Im worried itll be too restrictive for the power Im after.

What spec/power you after? I'm told it's the exhaust to go for, and will have no restriction. The main point is you can't get much bigger on the downpipe. 3 inch would probably not fit between the tunnel and the gear linkage anyhoo, even if you could somehow fit a 3 inch downpipe. I'm planning on fitting a Fusion Fabs manifold kit. 



#38 Steve220

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Posted 18 March 2018 - 07:13 PM

From the calcs, 2" (1.75" ID) will be restrictive for the flow at 12psi (150bhp). I'm after a 2.25" OD mandrel bent system.

#39 Anthony30

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Posted 18 March 2018 - 07:38 PM

From the calcs, 2" (1.75" ID) will be restrictive for the flow at 12psi (150bhp). I'm after a 2.25" OD mandrel bent system.

Give it a go and see what happens. :highfive:  Just make sure the downpipe will fit. :shy:



#40 Turbo Phil

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Posted 18 March 2018 - 08:03 PM

Plenty of folk make decent power on a 2" downpipe, but if you can fit bigger in go for it. You want the least possible restriction after the turbine & unlike a NA engine you can't really go to big on a turbo motor.

 

Phil.



#41 mini13

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Posted 18 March 2018 - 11:08 PM

Ive just done myself a 2.25" bore mandrel system, I was considering doing another to sell, I could look at doing one for you if you want, I have Tig stuff for stainless, and can stretch pipes to do slip joints.I did make the backbox for mine with a carbon can, but it was a PITA, next time I would just get a stainless box off the shelf, then its just a matter of geting a couple of 30 deg bends and sone cutting welding etc,

i dont have any good pics of mine, but managed to find these, it was extra tight being a remote box, rod change would be easier.Attached File  DSC_1511JPG.jpg   40.18K   3 downloadsAttached File  DSC_1513JPG.jpg   46.75K   4 downloadsAttached File  DSC_1512JPG.jpg   35.49K   2 downloads

 

 

 

 



#42 Steve220

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Posted 19 March 2018 - 08:31 AM

Ive just done myself a 2.25" bore mandrel system, I was considering doing another to sell, I could look at doing one for you if you want, I have Tig stuff for stainless, and can stretch pipes to do slip joints.I did make the backbox for mine with a carbon can, but it was a PITA, next time I would just get a stainless box off the shelf, then its just a matter of geting a couple of 30 deg bends and sone cutting welding etc,
i dont have any good pics of mine, but managed to find these, it was extra tight being a remote box, rod change would be easier.attachicon.gifDSC_1511JPG.jpgattachicon.gifDSC_1513JPG.jpgattachicon.gifDSC_1512JPG.jpg

Wow! That's an awesome offer, Joe!

Edited by Steve220, 19 March 2018 - 08:36 AM.


#43 Turbo Phil

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Posted 19 March 2018 - 01:10 PM

What do you use to stretch the pipes for slip joints Joe ?

Phil.

#44 mini13

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Posted 19 March 2018 - 01:43 PM

essentially this setup,

 

https://www.ebay.co....4UAAOSwKXdabVuh



#45 miniallsort

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Posted 26 March 2018 - 09:55 PM

interesting read following the progress






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