NorthloopCup likes a challenge, right?

[Tom Johnson]

Little bit more done yesterday, flywheel ARP bolts torqued up, cam cover bolts swapped out for some pretty stainless ones and trimmed down a couple of the trumpets

 

[jameswrx]

Could someone not come up with an inlet for throttle bodies that doubles back over like the stock inlet?

Could run the injectors close to the head and have U shape runners coming up n over and a plenum? AFAIK that’s much better for torque and also wouldn’t have the large straight inlets which need the front panel cutting and are still not long enough?

 

[David Stuart]

Could someone not come up with an inlet for throttle bodies that doubles back over like the stock inlet?

Could run the injectors close to the head and have U shape runners coming up n over and a plenum? AFAIK that’s much better for torque and also wouldn’t have the large straight inlets which need the front panel cutting and are still not long enough?

Better for torque but not peak BHP.

Road car. Torque.

Race car BHP.

Throttle bodies are better flat out.


Sent from my iPhone using Tapatalk

 

[NorthloopCup]

Could someone not come up with an inlet for throttle bodies that doubles back over like the stock inlet?

Could run the injectors close to the head and have U shape runners coming up n over and a plenum? AFAIK that’s much better for torque and also wouldn’t have the large straight inlets which need the front panel cutting and are still not long enough?

There’s lots of things that need to be factored in as well mate. There’s a transition of around 7% (iirc) taper from bellmouth to inlet port/valve head, so trying to accommodate that in a longer runner would mean 4 bellmouths that would be impossible to package.
Also the ideal inlet tract length is around 350mm, so not as big as you may have thought.

 

[Tom Johnson]

Update time,
Progress has been slow as of late as been flat out building cages but between jobs today so thought we'd have a go at moving things along.

Thought I'd have a little spending spree last week but some 700+ quid later it turned out to be not so little 😬

Decided to go for the hydraulic clutch conversion kit from PMS along with the 52mm release bearing and sleeve needed for the Helix clutch, spigot bearing for the input shaft, new thermostat and 197 plugs. Also got the Laminova oil cooler for Think Automotive.

Any ways today we got some more parts bolted on and managed to get it dropped into the car using a set of knackered gearbox cases to mock up as still waiting for Mark to pull his finger out with the dog box 🤪🤪

Few pictures:

Timing tool knocked up, bit agricultural but will do the job.

Spigot bearing fitted

Boss welded to sandwich plate for temp sensor

The most expensive oil cooler I've ever bought

Next headache is there F all room between the trumpets and and bonnet so looks like I'll have to trim the inner skin off and look into getting a set of angled trumpets to allow an airbox to be fitted.

Hopefully now the engine is in for mock up it will give me some motivation to come doing a bit.

 

[NorthloopCup]

still waiting for Mark to pull his finger out with the dog box 🤪🤪

Still waiting for gripper to get back in touch with me! 🤦🏻‍♂️

 

[Nafoff]

That front end looks great, that all custom?

 

[Tom Johnson]

That front end looks great, that all custom?

Yes mate, cut the standard crash bar off and made the tube one fit right into the back of bumper to give more room in the bay and aid cooling.

 

[Nafoff]

Yes mate, cut the standard crash bar off and made the tube one fit right into the back of bumper to give more room in the bay and aid cooling.

great idea and I imagine a significant weight drop too

 

[RuskiWeldFab]

great idea and I imagine a significant weight drop too

on mine i saved about 5kg doing this. slightly different as I have intercooler so couldn't angle the rad. but essentially the same idea but mine not removable and square.

 

[rctempire]

Looking absolutely cracking this. Well done boys.

 

[Bankrupt_drunk]

Just read the whole thread. What an utterly fantastic build. Good work!
And I'd like to point out that designing stuff where you can't access fastners is not restricted to automotive industry. Where i work we once launched a printer where the head conduit could only be connected by one specific person on the assembly line as she was the only one with small enough hands to access the fittings.

 

[dann2707]

Just read the whole thread. What an utterly fantastic build. Good work!
And I'd like to point out that designing stuff where you can't access fastners is not restricted to automotive industry. Where i work we once launched a printer where the head conduit could only be connected by one specific person on the assembly line as she was the only one with small enough hands to access the fittings.

 

[Darren S]

Is that your own distillery setup at the rear of the engine bay?

 

[Tom Johnson]

Did a bit of ringing around on Monday as I'd found some angled spacers on the Jenvey website, unfortunately they only off a parallel bore and as the current 25mm spacers are tapered down from the 50mm bodies to the inlet manifold they couldn't offer anything that would do the job.

So after a bit design time and 4 hours of printing today a test piece was ready.

17° angle looks like it will work well.
Just need to get a set cnc machined up now.

 

[NorthloopCup]

Did a bit of ringing around on Monday as I'd found some angled spacers on the Jenvey website, unfortunately they only off a parallel bore and as the current 25mm spacers are tapered down from the 50mm bodies to the inlet manifold they couldn't offer anything that would do the job.

So after a bit design time and 4 hours of printing today a test piece was ready.

View attachment 1522301
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17° angle looks like it will work well.
Just need to get a set cnc machined up now.

As I said on the phone mate, looks fuckin epic!

 

[RuskiWeldFab]

freaking awsome!!!! i need 3d printer in my life! also looks like its better for injectors as well!! literally straight in to the chamber!

 

[Tom Johnson]

As I said on the phone mate, looks fuckin epic!

Just hope it performs as well as it looks.

Looking at it i might have to relocate the alternator the same as @RuskiWeldShit has done

 

[Tom Johnson]

freaking awsome!!!! i need 3d printer in my life! also looks like its better for injectors as well!! literally straight in to the chamber!

Their a right pain it the ass to start with mate. Took me months to get the setting right to produce a decent print

 

[RuskiWeldFab]

Their a right pain it the ass to start with mate. Took me months to get the setting right to produce a decent print

i shall stick to cardboard than ha ha

 

[NorthloopCup]

Just hope it performs as well as it looks.

I can’t see any reason why it won’t mate tbh

 

[Nathan Evans]

The whole package looks mega, now you just need one of these at the front.

 

[NorthloopCup]

The whole package looks mega, now you just need one of these at the front.

View attachment 1522340

It’s coming mate. Rest assured 😎

Oh and for those of you looking at this - consider the volume of the airbox. Then look at the Tessa or rs2 manifold. Significantly less volume

 

[Darren S]

Did a bit of ringing around on Monday as I'd found some angled spacers on the Jenvey website, unfortunately they only off a parallel bore and as the current 25mm spacers are tapered down from the 50mm bodies to the inlet manifold they couldn't offer anything that would do the job.

So after a bit design time and 4 hours of printing today a test piece was ready.

View attachment 1522301
View attachment 1522304

View attachment 1522316

View attachment 1522317

View attachment 1522318

17° angle looks like it will work well.
Just need to get a set cnc machined up now.

Such a great invention 3D printers - just a shame that they are still a bit slow for the majority of us.

 

[Tom Johnson]

Such a great invention 3D printers - just a shame that they are still a bit slow for the majority of us.

Yep you're not wrong about being slow,
Finished a print for a mate on Wednesday that took 40 & ½ hours.

Dummy sump pan for an Yamaha R6

 

[Tom Johnson]

The whole package looks mega, now you just need one of these at the front.

View attachment 1522340

Thats a right beast of an airbox.

An airbox is the plan but the one I'm designing isn't that wide.

 

[RSRowe]

What plastic have you used for that?

 

[Tom Johnson]

What plastic have you used for that?

Carbon fibre PLA

 

[RSRowe]

The only reason I ask, is quite a lot of the filaments are not resistant to chemicals.
Obviously fine if you’re just using for mock up

I just thought it was worth mentioning.

 

[Nafoff]

It’s coming mate. Rest assured 😎

Oh and for those of you looking at this - consider the volume of the airbox. Then look at the Tessa or rs2 manifold. Significantly less volume

Thats a right beast of an airbox.

An airbox is the plan but the one I'm designing isn't that wide.

Its all about the airbox
I guess this is somewhere inbetween the Tessa/rs2 and the one shown above

 

[Tom Johnson]

The whole package looks mega, now you just need one of these at the front.

View attachment 1522340

I've enquired and its 750 euro for one of these if anyone is interested 🤪

Group buy?? 🤔

 

[Nathan Evans]

I've enquired and its 750 euro for one of these if anyone is interested 🤪

Group buy?? 🤔

306 maxi is the common one in France on the clios but for some reason they all run small trumpets

They don’t run them long like yours and mine.
Must just be for clearance once the air box is on

 

[Tom Johnson]

306 maxi is the common one in France on the clios but for some reason they all run small trumpets

They don’t run them long like yours and mine.
Must just be for clearance once the air box is on

Do you not think that would be deep enough to fit the trumpets in then?

He didn't send any dimensions over unfortunately

 

[Nathan Evans]

I’ve spoke to the guy who builds that airbox and he said I’d need shorter trumpets.
You’ll be able to get an air box on it and 306 is probably best but would need to modify the backing plate I reckon to bring the airbox forward over the trumpets.

 

[NorthloopCup]

I've enquired and its 750 euro for one of these if anyone is interested 🤪

Group buy?? 🤔

Man and up are definitely springing to mind at this moment in time. 🤭😂

 

[Tom Johnson]

I’ve spoke to the guy who builds that airbox and he said I’d need shorter trumpets.
You’ll be able to get an air box on it and 306 is probably best but would need to modify the backing plate I reckon to bring the airbox forward over the trumpets.

View attachment 1522503View attachment 1522504

Now that looks the dogs danglers.

Will do some research

 

[Krarl]

Jesus thats an airbox and a half! Imagine how many small animals, local wildlife and children under the age of 4 you'd have to rescue from it!😂

 

[NorthloopCup]

Jesus thats an airbox and a half! Imagine how many small animals, local wildlife and children under the age of 4 you'd have to rescue from it!😂

It’s all about the plenum volume mate. You have to remember that when you crack the throttle open, all the air in that airbox will be consumed within an instant. If there’s not enough there to feed the motor you lose response until it has the air it needs. Also, you need to allow space for the air to flow around and over the trumpets for maximum performance. 👍🏻

 

[alistairolsen]

Epic work gentlemen, keep it up!

 

[Tom Johnson]

Time for a bit of an update then.

Tweaked the design for the angled spacers and put them out for quotes to be cnc'd

Wasn't really sure what to expect with the bore having a sweep and a taper but quotes came back ranging from £224 each 😬😬 to £98 each 😬 (still a bit of a sting)


Anyways they turned up this week and has to be said they're worth it 👌🏻

Much better angle and room around the the trumpets for the airbox 👌🏻