1.8 upgrade - Page 2

Phil-Hex · 19th November 2015, 07:37

A remap from Mark at Kmaps might help to give it a bit more oomph ;-)

albaby597 · 19th November 2015, 09:35

I have wondered about the possibility of fitting a head from a mg tf 135 to a 75 120. The mg head is basically the same as the 160 but withe smaller valves and no vvc. would be an interesting experiment

Robson Rover Repair · 20th November 2015, 22:49

The 1.8 has potential for a lot more power than people give it credit for, its the type of drive your going to get when you change it.

People will always tell you you need to look at the VVC for power but truthfully you just need to look into your own engine.

MG 135 cams (or piper cams, their choice is huge http://www.pipercams.co.uk/pipercams...=20&engine=194 ), 52mm throttle body and we remap will have you knocking on 140 bhp if not 140bhp on the nose.

K series responds extremely well to a manifold change also, the difference in drive ability is huge and also the engine noise even on a standard system sounds not nasty but much more "rumble" low down.

Big mistake people make is decating the vvc K series as it looses power top end (whole point of it) but it does make a difference mid to high range on a fixed cam K series.

Truthfully my 1.8 Freelander is about to get a few upgrades in the future also, ive found a nice manifold....

http://www.ebay.co.uk/itm/1508215491...%3AMEBIDX%3AIT

....but will definitely have to go piper cams as im the early engines that have a rotar arm / distributor cap on one of the cams which rules the MG 135 cams out. Hoping to go for a set that will generate low / mid range torque rather than top end. Then a we stainless set-up for rest of exhaust at later date.

Also its mems 1.9 which people say can't be mapped but you can flash clone the chip and then refit a second one with a changed map. Should be good crack and give the freelander a bit more grunt low down.

Robson Rover Repair · 20th November 2015, 23:11

Would be worth lifting the whole head unquestionably.

Additionally if you had the extra cash to have the 135 head ported and polished (prehaps even have the intake milled for a VVC air intake setup).

Ste.Sales · 21st November 2015, 11:38

Dave Andrews at DVA power.... Enough said! Got deep enough pockets and your NA 1.8 can throw out 260+ bhp.
He does loads of "bolt on kits" to increase power and torque.

20th November 2015, 22:49	#13
Robson Rover Repair NI/ROI RS ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van Join Date: May 2009 Location: Antrim Posts: 8,103 Thanks: 299 Thanked 1,046 Times in 568 Posts	The 1.8 has potential for a lot more power than people give it credit for, its the type of drive your going to get when you change it. People will always tell you you need to look at the VVC for power but truthfully you just need to look into your own engine. MG 135 cams (or piper cams, their choice is huge http://www.pipercams.co.uk/pipercams...=20&engine=194 ), 52mm throttle body and we remap will have you knocking on 140 bhp if not 140bhp on the nose. K series responds extremely well to a manifold change also, the difference in drive ability is huge and also the engine noise even on a standard system sounds not nasty but much more "rumble" low down. Big mistake people make is decating the vvc K series as it looses power top end (whole point of it) but it does make a difference mid to high range on a fixed cam K series. Truthfully my 1.8 Freelander is about to get a few upgrades in the future also, ive found a nice manifold.... http://www.ebay.co.uk/itm/1508215491...%3AMEBIDX%3AIT ....but will definitely have to go piper cams as im the early engines that have a rotar arm / distributor cap on one of the cams which rules the MG 135 cams out. Hoping to go for a set that will generate low / mid range torque rather than top end. Then a we stainless set-up for rest of exhaust at later date. Also its mems 1.9 which people say can't be mapped but you can flash clone the chip and then refit a second one with a changed map. Should be good crack and give the freelander a bit more grunt low down. __________________ Cheers, Colin Robson Rover Repair on Youtube DISCOUNTED MTEC BRAKES FOR ALL MG ROVER'S Braided hoses, more coating and pad options for 2024

20th November 2015, 23:11	#14
Robson Rover Repair NI/ROI RS ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van Join Date: May 2009 Location: Antrim Posts: 8,103 Thanks: 299 Thanked 1,046 Times in 568 Posts	Would be worth lifting the whole head unquestionably. Additionally if you had the extra cash to have the 135 head ported and polished (prehaps even have the intake milled for a VVC air intake setup). __________________ Cheers, Colin Robson Rover Repair on Youtube DISCOUNTED MTEC BRAKES FOR ALL MG ROVER'S Braided hoses, more coating and pad options for 2024

19th November 2015, 07:37	#11
Phil-Hex Gets stuck in Typhoon ZT-T CDTi Bittersweet 135 TF Join Date: Jul 2014 Location: Ribble Valley Posts: 672 Thanks: 226 Thanked 141 Times in 117 Posts	A remap from Mark at Kmaps might help to give it a bit more oomph ;-)

19th November 2015, 09:35	#12
albaby597 Regular poster M Join Date: Jul 2014 Location: h Posts: 44 Thanks: 1 Thanked 11 Times in 11 Posts	I have wondered about the possibility of fitting a head from a mg tf 135 to a 75 120. The mg head is basically the same as the 160 but withe smaller valves and no vvc. would be an interesting experiment

21st November 2015, 11:38	#15
Ste.Sales Avid contributor Rover 75 Saloon Join Date: Jan 2015 Location: Preston Posts: 233 Thanks: 9 Thanked 37 Times in 35 Posts	Dave Andrews at DVA power.... Enough said! Got deep enough pockets and your NA 1.8 can throw out 260+ bhp. He does loads of "bolt on kits" to increase power and torque.