105 replies to this topic

[Bat]

Hi,

It's probably no words or better than anything else these days.

All you can do is look to see if it's good quality alloy and good welding then bolt it on!

Cheers 

Edited by Bat, 04 October 2018 - 09:42 AM.

[GreaseMonkey]

That is an incredible looking manifold!

[jsyjamie]

Engine - Intercooler

 

The bigger the better? Nope as this can create lag.

 

What can you actually fit under a round nose without it hanging out the front like some 90’s Max Power Mag wannabe…no offence. 

 

I took a few measurements and luckily having an MPi engine with no dizzy, higher alternator mount and moving the front radiator to the side meant there was definitely enough room.

 

Ebay has loads of universal intercoolers and I went for a conservative core size. It was only £60 delivered so if (when) I need to upgrade it at a later date it won't be an issue.

 

Core size: 136mm x 330mm x 65mm

Inlet & outlet size: 56 x 56mm

 

 36832225_10160692489755472_3957442519335174144_n.jpg   50.72K   3 downloads

 

Some mounting fabrication will be required and I now need to work out where the pipe work will go...

 

Cheers,

 

Jamie

 

 

 

[Steve220]

You'd find very little difference in lag with the core size. It's the boost piping that has more of an impact, but again, doesn't have that much of an impact.

[jsyjamie]

You'd find very little difference in lag with the core size. It's the boost piping that has more of an impact, but again, doesn't have that much of an impact.

 

Suppose when we're only looking at small ish horse power compared to Jap engines.

 

Which piping and connections did you use Steve? 

[Steve220]

I've had all mine custom made by Fusion Fabrications. The silicone joiners are from Viper performance as their factory isn't that far away.

[jsyjamie]

I've seen the name before, I'll have a look at their website, thanks!

 

Also which cam did you go for in the end as I can't remember seeing it in your thread?

 

I would like to use the Phase 2 but not sure it would work in the MPi engine...

[mini13]

Use the 274i cam, it's for mpis and has the cam sensor lobe, and is also well suited for forced induction, not quite as hot as a phase 2 but getting there.

[Steve220]

If he's using the SC kit, you don't need the cam sensor lobe.

[mattmiglia]

There’s a thread on turbominis about those Chinese rads, seems quite good results overall with them

[Chris.Williams]

Engine – Manifold
 
Memories of friends modifying their bulkheads to fit a turbo made me shudder but using the GT1752 and a new manifold meant that this wasn’t required.
 
Fusion Fabrications was the name which kept popping up and the quality of the products on their website and Facebook page looked incredible.
 
https://www.fusionfa...nd-downpipe-kit
 
downpipe7-ebay4.jpg
 
Browsing on the Facebook page the side mount manifold and downpipe came up and looked amazing. I reached out to Matt and placed an order. In for a penny, in for a pound, may as well do this properly!
 
A few weeks later another expensive box turned up on my door step. Pure weld porn!
 
IMG_7541.JPG
 
IMG_7542.JPG
 
IMG_7543.JPG
 
Fit's like a glove.
 
IMG_7549.jpg
 
IMG_7551.JPG
 
IMG_7554.jpg
 
Cheers,
 
Jamie

A thing of pure beauty!

[jsyjamie]

Gearbox – Gear Set

 

One of the weak points in pursuit of big power from the A Series is the gearbox.

 

I remember friends having the Clubman straight cut gear set in their 1380s back in the day and you could hear the whine coming a mile away! As I wanted this to be a daily and would be driving several hours to and from tracks in Northern France the noise was going to be too much.

 

On the Mini Spares website, I saw the other (typically more expensive) option was their Helical heavy-duty kit. Stronger, quieter, almost the same ratio as the Clubman set and according to their website “Tested by Bill Richards for 400 laps at Brands in his 160HP 8 port engine under race conditions with our twin pin diff”.

 

http://www.minispare...ic/C-STN48.aspx

 

My aim is 160-180bhp so this sounded ideal!

 

 IMG_7648.jpg   62.81K   0 downloads

 

I also ordered the famous Mini Spares cross pin diff at the same time.

 

 IMG_7646.jpg   35.96K   0 downloads

 

 IMG_7647.jpg   36.22K   1 downloads

 

Not sure how bad the torque steer will be, hopefully I won't need to change it for an LSD...

 

Cheers,

 

Jamie

[jsyjamie]

Engine – Pistons

 

To lower the compression ratio we need some dished pistons and head work.

 

There is a great thread on TMF where people post their engine specs and what bhp they have achieved. Some of it can be taken with a pinch of salt as different rollers show different levels of power etc. but it is an excellent reference point.

 

http://www.turbomini...tid=521210&fr=0

 

+20 1293 looked the way to go as if anything happened to the engine it could be rebored.

 

The question is whether to go for the 10cc Cast or the 18cc Forged Omegas…

 

http://www.med-engin...ed-pistons-18cc

http://www.med-engin...ast-pistons-020

 

There is a fair price difference and by the looks of it some people are running the cast pistons up to 20psi and 200bhp. Is it a case of that’ll do or go big or go home?

 

Here’s your answer…

 

 IMG_7673.JPG   53.17K   0 downloads

 

 IMG_7674.JPG   45.73K   1 downloads

 

 IMG_7675.JPG   46.19K   0 downloads

 

I’m not going mental as I would like to keep it as a daily, so cast are good enough for me.

 

I am aiming for a compression ratio around 8.50 so with the 10cc dish and using this calculator the cylinder head volume needs to be 27cc.

 

https://jscalc.io/ca...RNEglVkKLQir11T

 

Cheers,

 

Jamie

[jsyjamie]

Quick Update

 

Apologies for the lack of updates but child one was born recently and not surprisingly my free time has diminished significantly!

 

So just a quick one for now of some other bits I've bought recently and I'll do a proper post over the weekend.

 

Cam Choice - Avonbar Phase 2

 

After doing some research and checking if it would work on an mpi engine with the SC kit I went for the Phase 2. It seems to be pretty much standard in all turbo engines looking to make decent power and has a good linear power delivery.

 

http://www.avonbar-r...urbo-cam-Billet

 

 IMG_7676.JPG   40.44K   2 downloads

 

MED Steel-Alloy Vernier Duplex

 

https://www.med-engi...-vernier-duplex

 

 IMG_7672.JPG   54.6K   0 downloads

 

KAD

 

Brakes had to be KAD especially when the red is a similar colour to the car. I plan on running 12 x 5.5 Super/Ultralites to keep the sleeper/OEM look so went for vented 8.4" disks.

 

https://kentautodeve...ant=55078756231

 

 IMG_7732.JPG   45.43K   0 downloads

 

 IMG_7731.JPG   46.66K   2 downloads

 

I also ordered their quick shifter and adjustable gearbox steady kit which would definitely be needed as the LH engine steady needs to be removed to accommodate the side mount turbo.

 

https://kentautodeve...nge-quick-shift

https://kentautodeve...rbox-steady-kit

 

 IMG_7733.JPG   34.15K   0 downloads

 

Cheers,

 

Jamie

[Dannyboolahlah]

This is going to be awesome. That side mount manifold makes me weak at the knees!