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Mashed Potatoes

What's being worked on today?

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2006 BMW 118D - 127BHP standard.


Harper Motorsport hybrid turbo @ 1.9bar


Stage 3 tuning + EGR deactivation + launch control


I think my favourite parts of this car are the tow bar and the little standard down-turned exhaust! It really pulls well too!


Now producing over 220BHP - video to follow but for now, a little teaser of the launch control testing.


To everyone that has sent me PMs over the past couple of days, I WILL get back to you, I'm just running out of hours in the day at the moment!









Edited by Mashed Potatoes

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New ways to get in touch! There's now new ways to get in touch with us outside office hours!


Aside from our office line listed on our website, you can also now contact us the following ways:


Mobile - 07384 468 908 (this will be available until 7pm)

Whatsapp - 07384 468 908 (available until 7pm but messages will be answered after if we're available)

BBM - HarperMS (as above)

email - sales@harpermotorsport.co.uk (we will get back to you within 24 hours of your enquiry)


You can also follow us on Instagram (account setup done today so I'll be uploading over the next few days playing catchup!) - https://www.instagram.com/harpermotorsport/



Edited by Mashed Potatoes

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Epic thread bump.


It's been a busy month! Jake had more work done to his car in the hopes of getting into Drift Cup, but unfortunately didn't quite score highly enough despite driving incredibly well, the standard of entry was VERY high. The car will be back to us for some more upgrades in the handling and maybe speed department once the budget allows. For a 16 year old he will outdrive most people - he's fearless. For people interested in following him he can be found on Instagram as jakelynch_drift.






We've had numerous parts in and out, Powerflex and SuperPro bushes, HardRace suspension arms (some more of which are due in next week), some more forum members have been through and we've had some more unusual cars in for us. For example this Audi S5 with decats and AMG style burble on the overrun. 






We've had some cars in for xHP gearbox maps too! Like this 525D.






And a customer sent me this rolling road graph after asking us to tune their car on a local rolling road. We know what our figures will produce, but sometimes people like to see what the car will do for themselves. In this instance the customer paid for before and after rolling road runs. 258BHP/560Nm is the standard figure. The car rolled at 252BHP/552Nm. About right, and this was on a V Tech dyno which is known to be accurate. Tuned on a stage 1 made 320BHP and 704Nm. We usually underquote our figures (mainly because it's better from our perspective to slightly 'undervalue' our product and if a customer does stick their car on a rolling road and it makes more, it's all good. It's not always good if it works the other way if we claim our actual figures! We generally quote 300BHP/650Nm on our website for these but they routinely make around 320BHP and anywhere between 690-710Nm. 





And we've also had some ECUs in by post. These two have been in for immobilizer disable!




Edited by Mashed Potatoes

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