my 998 turbo as bulit as cheap as chips
Turbo Mini Forums

sounds good enough to me mate.

Schrödinger's cat - so which one am I ???

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Sorry, badly phrased by me... what I should have said is the safest way is to make the return one size larger....

It's all relative between pump capacity and the flow resistance of the line. The pump will overcome the flow resistance of the feed line even if it's small relative to the pump (you just get some pressure drop) but you really want close to zero pressure drop on the return line as regulators don't like spilling back against a back pressure.
Easiest way to be sure there is little to no back pressure is to go one size larger.

Schrödinger's cat - so which one am I ???

today I got the oil feed t-piece made up for the oil feed and pressure switch, I also made up the feed to the turbo just have to get a braided pipe to join the two together. I have also got the pipes made up ready to weld the return to the tappet chest and to weld onto the return flange then have to get a pipe to join the two together, progress is slow at the moment but I am getting closer.

I also brought a turbo carb inlet manifold and plenum for £35 so the home made one can be put on the shelf for now then maybe test it when I get the cars on the rollers, see if it flows aswell as the metro one

will the return into the tappet chest be lower that the output of the turbo? if it isnt this could cause you problems mate.

I dont know if it is or isnt im just checking to make sure it doesnt cause you future problems that could be sorted whilst it is easy to do.

after re fitting the turbo I have noticed that yes the turbo is lower than the tappet chest, this isnt a problem I will have to return to the fuel pump blank that I have, just means a little longer pipe. Thanks for pointing that out I knew there was a reason I was going to feed back to the fuel pump hole just couldnt remember why

Edited by purple_mini_racer on 14th Oct, 2008.

glad it was noticed before it caused a major head ache.

been a busy boy Ive got the exhaust flange made I cant wait to get this turbo on

Edited by purple_mini_racer on 22nd Oct, 2008.

Had a go at fitting turbo onto the mini tonight to find the exhaust part of the turbo hits the brake compensator valve so Ive had to cut it and point it up towards the bonnet, not a problem just a step backwards. I think I can then make a down pipe that comes over the top of the engine steady

also got my plenum off my dad all done looks good and also has the shim in the carb end so hope it works as it looks so much better than the metro turbo one

The mini is going on ebay this week and the turbo conversion will be too so if anybody wants either im open to offers. The wife has decided she wants a 5 door so im buying her a 106 diesel not quite the same. the only thing left to do on the turbo conversion is to buy 2 bits of pipe 1 for the feed and 1 for the return, then fit the turbo and make the down pipe which is quite an easy job.

The mini is metalic purple and silver its a high comp 998 with a 3.1:1 or 2.9:1 diff it has a stage 1 kit with rc40 a metro dizzy a modded needle electrtic fan in the inner wing, lowered, up rated tie rods 1.5 degree negative camber arms, 5.5" minilites and will do the clock on a trackday it has honda crx seats in the front and the rear trimed to match. the drivers door is dented but there is a spare door in the same colour, steering drop bracket and single centre clock, angle eye head lamps and mark2 rear lights.

I will add the ebay links if there is nobody wants them before.

bonkers

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Ah, the classic unfinished project "all it needs is.....". All it needs is a manifold that won't crack the first time it makes boost, a plenum that works and all the rest of the bits needed to do a turbo project work.

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

i always think a project, no matter how nice, is always 99% UN-finished until its up and running right.

trust me, i have 3 ljust like this!

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

I could finish it but the mrs wants a four door and i cant afford a stretched mini so the turbo kit must go and even if you lot think the manifold and plenum are no good the turbo is £199 new so its gotta be worth something I will get it on ebay

oh thats a shame ! i liked your manifold design ,and was looking forward to seeing it run ,,,it must be a big disapointment for you not to finish .commiserations
regards robert

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

keep has a spare conversion

Jack Jones

simple answer tell the misses to buy her car! :) good luck with the sale

Drives
-Ford S-max Mk2 Ecoboost
-Rover 100 VVC #2 - track project

Searching is all you need on TurboMinis

Ive been given a 1098 engine that I have to pick up so I might finish the kit fit it on the 1098 and get the engine on the dyno to test it then put it up forsale after its proven to work

or get another mini and chuck it in that please i need a companion for l2b next year, you have enough time

Jack Jones

Jack you will have Phil next year - tis MY mini not the hubbies and if anyone wants to donate me a more reliable dog walking type car we can keep MY mini and the hubby can finish the turbo kit

nicely put !

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

ok my wife's mini is now up on ebay heres the link http://cgi.ebay.co.uk/1981-AUSTIN-MORRIS-M...id=p3286.c0.m14