project 998t

Project 998t uk first A series rear mounted turbo system.

The car is a 1973 morris mk3 mini, originally a 850cc blaze orange mini with only 3 owners since new.

I have owned this mini since 2007 with a handfull of engines including 1293cc, 1275 turbo, which was featured in Mini Mag 2009, also a swiftune 1380cc which is what she is running now.

The whole car has just undergone its second full rebuild and paint by myself and now is a suitable platform for project 998t.

Listed below is a short list of modifications.

custom bonnet with punched air holes
side perspex side window with turbo cold air feed
project graphics
safety devices front, side and X-diagonal rear cage with added bars
full 6 point harness ( running basic 4 point at the moment )
carbon race seat
full range of safety cutouts
plumbed in lifeline fire extinguisher

Engine

The engine will be based on a A+ 998cc block with a lot of components being stock items and a lot of components being bespoke.

Basic information on phase 1 engine

998 A+ block
202 head, gas flowed
swiftune SW5-07 cam
swiftune alloy adjustable vernier timing
std fly wheel with uprated pressure pad and arp plate

Phase 1 Turbo

Compared with normal turbo minis, for example the MG Metro Turbo, or even the clutch mounted style, as I have previously done, this one is going to be a little different.

The engine will stay in the normal place, but the turbo to be mounted in placement of the rear exhaust box!!!!!

The turbo that has been selected for the first engine is a kp35.

I have chosen this turbo due to its Quick spool up and after plotting the engine flow rates for the engine, I found this turbo almost right and well within the efficiency island of the turbocharger.

As you can see, the turbo installation is now complete, with all systems plumbed in and working well, test runs will start early Nov 2010.

Megajolt

To run this engine and to get the best possible performance out of it, and all future project engines, I will be using megajolt. The megajolt map will have to be custom. Because the engine is almost standard compression, the map will have to be split in two.

First part to run as a standard/modified map and then the second part to be modified and fettled to accomodate the boost. Most of the map will be written, on the road, by Justin of Lillspeed, Lopen, Somerset.

I will post map information as soon as it has been completed, though some will be kept secret for obvious reasons.

Turbo oil

At the start of the project, the turbo was using cheap 15w oil to lube and cool the turbo. This has been found to be too thick since the turbo does not get as hot as in a normal set up, this was slowing the spool of the turbine.

The oil has now been changed to 5w oil, this has made a huge difference to the turbo and how quick and smoothly it spools up.

Winter 2011 upgrades:

3.4 diff with cross pin diff
GT1544 turbo
Adj boost control (8psi to 13psi)
New wheels
202 head, skimmed for new c/r

Click here for some media on Youtube