Your Order / Return May Be Delayed Due To Shipping Irregularities.   Read More
We have detected you're not on the correct site for the car you have selected! Click the green button below to go to the correct site.
Select your car: 
BMW Mini Cooper

 Should I get an aftermarket computer for my SPI ?.

 Created by: alexsunny123
Orig. Posting Date User Name Edit Date
Jan 10, 2021 06:08PM jedduh01  
Jan 10, 2021 06:31AM malsal  
Jan 3, 2021 06:01PM 6464s  
Jan 3, 2021 03:54AM alexsunny123 Edited: Jan 15, 2021 07:45AM 
   Forum Width:     Forum Type: 

 Posted: Jan 10, 2021 06:08PM
Total posts: 1640
Last post: Jan 5, 2022
Member since:Apr 30, 2009
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
You can get the computer, but can you use the computer?
Tuning is the key ingreident to making power... and a tuner has the knowledge for sprinkiling in timing and fuel to make the most 'POWER".

find out what specs the computer has. then find a tuner that can work with those. On a Dyno... Rolling road tuning will yeild the best results

 Figure a day of tuning with multiple pulls to get a best result.  average ~1000$ to pay the tuner for his time.

Learning all that your self would be a STEEP curve for sure. -  no guranteed results

A good head + exhaust will help that litlte cam breathe best too.

 Posted: Jan 10, 2021 06:31AM
Total posts: 8382
Last post: Jan 13, 2022
Member since:Feb 7, 2006
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
The spi ecu is good up to 80 to 85 hp i doubt you are close to that figure with your current set up.

If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jan 3, 2021 06:01PM
Total posts: 201
Last post: Jan 18, 2022
Member since:Jan 25, 2017
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
A computer does not make more HP. Larger displacement makes more HP. The setup you created is for running at higher RPMs.

 Posted: Jan 3, 2021 03:54AM
 Edited:  Jan 15, 2021 07:45AM
Total posts: 3
Last post: Jan 31, 2021
Member since:Dec 28, 2020
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0

I see that there is a company in the UK that makes a nice computer for the Spi and I'm wondering if it would help my car gain hp. I have a few modifications including a Swiftune SW5 cam, milled head, lightened flywheel, header, K&N filter, 1.5 roller rockers.
Looking for any opinions from anyone with experience on the computers. I should probably get a better cylinder head too.