22 replies to this topic

[Nirrmal]

I want to start a new engine build using a metro block. I want to try and build a high revving engine that produces more than 150HP, my goal is to reach 200 but i dont know if thats possible. What are some ways that i could reach that magical HP goal? Do i have to get a twin cam conversion or is it possible to get smtg more than 150HP from a bored 1340cc engine that has a supercharger ? I want the car to be drivable and usable on the road. I know that everything has its limits and I might have to sacrifice road drivability to get close to 200hp but whats the most HP i can get from an engine that will be used for road purposes ?

[nicklouse]

Fit an engine from another car.

[Shooter63]

For road going 200bhp you are going to need some form of supercharger, so you might want to ask the mods to move this over to the relevant section.

Shooter

[stuart bowes]

how long do you need it to last.. is the gearbox even capable of handling those kind of loads... and how deep are your pockets

[mab01uk]

TMF - Mini - Honda Vtec Engine Conversions:-

https://www.theminif...orum/164-honda/

 

130-200HP Front mounted Honda Vtec D16

(USA Classic Mini engine conversions ) :-

https://www.supercoopers.com/classic

Edited by mab01uk, 01 September 2024 - 11:31 AM.

[burchy35]

Get yourself across to the turbo mini forum, there are plenty who are in the 200+ club with usable A series setups.
I have a 200+ turbo set up which is great fun but it's a handful on the road but better suited to the track, but i do admit it is certainly not cheap to get a reliable set up. It's taken me through plenty of ups and downs to get there and it would of been alot easier to use a different engine. But I love it that it's an A series.

[Shooter63]

Get yourself across to the turbo mini forum, there are plenty who are in the 200+ club with usable A series setups.
I have a 200+ turbo set up which is great fun but it's a handful on the road but better suited to the track, but i do admit it is certainly not cheap to get a reliable set up. It's taken me through plenty of ups and downs to get there and it would of been alot easier to use a different engine. But I love it that it's an A series.

Do you suffer from a tad of torque steer by any chance?

Shooter

[burchy35]

When the road surface is uneven it can throw the car around under gard acceleration.
But on a smooth track it's fine.
I had to change the suspension for rose joints and I run an ATB with a dog box that helps to keep it in a straight line.
A well sorted 150hp mini is mental enough on the road, anymore is wasted unless your trying to shorten your life a bit.😬

[DeadSquare]

It is quite possible.  You can get 200 + BHP out of an A series, but you can't usefully use it on the road.

 

The secret thrill of the acceleration fades and after the second wrecked gearbox, you stop using the full potential.

 

Years ago, I used to chase BHP and found that 100 BHP is nice.  120 isn't much different, but more than 125 isn't any nicer and in the wet it can be very unpleasant.

 

50 years ago, the penny dropped. Forget BHP,  concentrate on Torque between 2,000 and 7,000 RPM and leave the higher Revs to the racetrack.

[Quinlan minor]

A shedload of money.

[Midas Mk1]

Numbers mean nothing in a Mini, it’s how it drives, been in plenty 150+bhp minis that drive far worse than my 1380.

[MiniMadRacer]

I am not sure, as I am a dinosaur in all this, but back in the day as a normal mini user, ie not bleeding edge developments, i raced and sponsored by Rover, we used to believe or be told the mini crank could only really take about 150 BHP "reliabley", I was turning around 120 BHP, which with a straight cut gearbox etc amounted to around 105 BHP at the wheels... I was pulling around 8500 to 9000 revs, after about 200 miles, the engine was toast, but i do know times have moved on

[IronmanG]

Money
Rotrex
Turbo
Engine swap

[MiniMadRacer]

As an FYI, I was running a metro Turbo crank and block, but no turbo as this was banned in my class, and I ran omega pistons (not turbo ones due to too low a compression) I ran an A+ straight cut gear set, and a Jack Knight MK IV Cam and Pawl Power lok diff (not an LSD), and a side draught Weber 48, jetted for full race.. I did not use it on the road

[mab01uk]

MED MULTI-WEB CRANKSHAFT KIT - MINI

Engine configurations from 1293cc to 1460cc.... £4,525.00

https://www.med-engi...-web-crankshaft

Edited by mab01uk, 01 September 2024 - 09:56 PM.