# Marks RX7 - lets break a rotary. **URL:** \ **Category:** Non Renault projects\ **Created:** [July 26, 2019, 11:07am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636 "2019-07-26T11:07:22Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![Mark\_Davis](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_davis/32/406_2.png) [@Mark\_Davis](https://turborenault.co.uk/u/Mark_Davis)\ **Post date:** [July 29, 2019, 8:49pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/21 "2019-07-29T20:49:23Z")
> [@andybond](#): > > A Cosmo lump isnt that much more than the rebuild .. I’ll have a read. Also do I get a prize for the extremely accurate title of this thread ? 😂 ---
**Author:** ![andybond](https://turborenault.co.uk/user_avatar/turborenault.co.uk/andybond/32/13_2.png) [@andybond](https://turborenault.co.uk/u/andybond)\ **Post date:** [July 29, 2019, 8:50pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/22 "2019-07-29T20:50:20Z")
> [@Mark Davis](#): > > I’ll have a read. > > Also do I get a prize for the extremely accurate title of this thread ? 😂 Serial killer. I think you might lose your superglue skill level custom name tag.. ---
**Author:** ![system](https://turborenault.co.uk/uploads/default/original/3X/9/6/9649aa71d4ecde589ad60a46669f755eb960a019.png) [@system](https://turborenault.co.uk/u/system)\ **Post date:** [July 29, 2019, 8:51pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/23 "2019-07-29T20:51:07Z")
> [@Mark Davis](#): > > I’m certain that has to be some kind of rotary record In terms of buying car to blowing it up. “Marks rx7 - lets break a rotary” you were destined to impress from the beginning i was hoping for more of a bang to be honest 😂 ---
**Author:** ![Mark\_L](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_l/32/1291_2.png) [@Mark\_L](https://turborenault.co.uk/u/Mark_L)\ **Post date:** [July 30, 2019, 6:24am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/24 "2019-07-30T06:24:48Z")
Don’t know much about Rotary’s myself, can’t believe it’s sh\*t itself already! It must be us Mark’s that have bad luck with Cars! I can build other people’s with no issues, mine always turn to sh\*t! Anyway Good Luck with it. I’m Sure you’ll be having some big grins in it soon! ---
**Author:** ![Mark\_Davis](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_davis/32/406_2.png) [@Mark\_Davis](https://turborenault.co.uk/u/Mark_Davis)\ **Post date:** [July 30, 2019, 7:40am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/25 "2019-07-30T07:40:22Z")
I’m never one to hang around so car is booked into Rotor Torque in Southend on 24th August, they come highly recommended in the RX7 scene. The plan is the following; Full rebuild Bridge port Link ECU AEM coils Mapping after run in I’m contemplating a turbo change too but will depend on budget. Now, what else can I blow up in the meantime. 😂 ---
**Author:** ![clarky\_gtt](https://turborenault.co.uk/user_avatar/turborenault.co.uk/clarky_gtt/32/380_2.png) [@clarky\_gtt](https://turborenault.co.uk/u/clarky_gtt)\ **Post date:** [July 30, 2019, 12:37pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/26 "2019-07-30T12:37:37Z")
can i say i told you so yet? ---
**Author:** ![Mark\_Davis](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_davis/32/406_2.png) [@Mark\_Davis](https://turborenault.co.uk/u/Mark_Davis)\ **Post date:** [July 30, 2019, 12:38pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/27 "2019-07-30T12:38:15Z")
> [@clarky\_gtt](#): > > can i say i told you so yet? Still a bit precious at the moment mate! Hahaha ---
**Author:** ![davemaygtt](https://turborenault.co.uk/user_avatar/turborenault.co.uk/davemaygtt/32/167_2.png) [@davemaygtt](https://turborenault.co.uk/u/davemaygtt)\ **Post date:** [July 30, 2019, 9:17pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/28 "2019-07-30T21:17:35Z")
It must be the way you drive em Mark. You do know you can lift your right foot from the floor every now and then for example at traffic lights or maybe sometimes when changing gear? ---
**Author:** ![Mark\_Davis](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_davis/32/406_2.png) [@Mark\_Davis](https://turborenault.co.uk/u/Mark_Davis)\ **Post date:** [July 30, 2019, 9:20pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/29 "2019-07-30T21:20:12Z")
> [@davemaygtt](#): > > It must be the way you drive em Mark. You do know you can lift your right foot from the floor every now and then for example at traffic lights or maybe sometimes when changing gear? It’s a good job I didn’t drive it hard on a test drive, that would of ruined his day. I’ll get it sorted chaps. ---
**Author:** ![Mark\_Davis](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_davis/32/406_2.png) [@Mark\_Davis](https://turborenault.co.uk/u/Mark_Davis)\ **Post date:** [August 9, 2019, 3:57pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/30 "2019-08-09T15:57:28Z")
I bought a turbo today. A Holset HX50 capable of some serious power. Fits perfectly on existing Greddy manifold with just a few subtle changes to coolant lines. Current exhaust is a 3” system including down pipe so will change to a 4” at some point in the future. ![F1C0F2DB-D126-4C67-ABE6-F511A6F776B0.webp](https://turborenault.co.uk/uploads/default/original/3X/a/4/a4ed227df7485012e15db25afe38ee04bae41c9d.webp) ![DC06FFA8-CBA7-4871-BA4C-135C5FD41BB6.webp](https://turborenault.co.uk/uploads/default/original/3X/9/d/9db94fe514a1d110d826cd798d1182c80e7f1611.webp) ![5D98B9A3-0184-49E5-AF77-F1383D63107E.webp](https://turborenault.co.uk/uploads/default/original/3X/3/e/3e82a88f2be640c3ec1ff7210ae2b2571df63139.webp) Next purchase will be Devils Own water/meth injection kit. ---
**Author:** ![DaveL485](https://turborenault.co.uk/user_avatar/turborenault.co.uk/davel485/32/12_2.png) [@DaveL485](https://turborenault.co.uk/u/DaveL485)\ **Post date:** [August 9, 2019, 5:46pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/31 "2019-08-09T17:46:00Z")
I demand a passenger ride 😃 ---
**Author:** ![system](https://turborenault.co.uk/uploads/default/original/3X/9/6/9649aa71d4ecde589ad60a46669f755eb960a019.png) [@system](https://turborenault.co.uk/u/system)\ **Post date:** [August 10, 2019, 9:23am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/32 "2019-08-10T09:23:30Z")
And you’re now famous on Facebook… No names obviously but I rad this story and thought that sounds familiar! 630429603800232/posts/1291453561031163 ---
**Author:** ![Mark\_Davis](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_davis/32/406_2.png) [@Mark\_Davis](https://turborenault.co.uk/u/Mark_Davis)\ **Post date:** [August 10, 2019, 9:58am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/33 "2019-08-10T09:58:37Z")
> [@stavers](#): > > And you’re now famous on Facebook… > > No names obviously but I rad this story and thought that sounds familiar! > 630429603800232/posts/1291453561031163 Yes indeed, very interesting when you get a new car and realise what’s been done by previous owners. I’ve got a good plan in place now so keep an eye on the thread for updates. I’m actually going to finish this project and use the car this time. 😉 ---
**Author:** ![Larsson7](https://turborenault.co.uk/letter_avatar_proxy/v4/letter/l/7feea3/32.png) [@Larsson7](https://turborenault.co.uk/u/Larsson7)\ **Post date:** [August 10, 2019, 12:14pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/34 "2019-08-10T12:14:50Z")
I love how turbos are so accessible on lots of older cars, turbo sittings at the top nice and easy to get to. ---
**Author:** ![Mark\_Davis](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_davis/32/406_2.png) [@Mark\_Davis](https://turborenault.co.uk/u/Mark_Davis)\ **Post date:** [August 13, 2019, 6:56pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/35 "2019-08-13T18:56:45Z")
First tuning purchase arrived today. Water/meth injection kit from Devilsown. I’m planning to run a jet in the compressor of the turbo and a second at the elbow pre throttle. ![33B31C4C-5C64-4FB6-982C-8DD31709A21F.webp](https://turborenault.co.uk/uploads/default/original/3X/2/b/2b6a320d8fd9a694f7779ce970ba61b3e47177aa.webp) ---
**Author:** ![andybond](https://turborenault.co.uk/user_avatar/turborenault.co.uk/andybond/32/13_2.png) [@andybond](https://turborenault.co.uk/u/andybond)\ **Post date:** [August 13, 2019, 10:08pm UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/36 "2019-08-13T22:08:46Z")
Just heard a new phrase watching this : [https://www.youtube.com/watch?v=n\_kDIsY\_8bE](https://www.youtube.com/watch?v=n_kDIsY_8bE) A rotard. Someone who likes rotaries. Had me chuckling .. ---
**Author:** ![Mark\_Davis](https://turborenault.co.uk/user_avatar/turborenault.co.uk/mark_davis/32/406_2.png) [@Mark\_Davis](https://turborenault.co.uk/u/Mark_Davis)\ **Post date:** [August 14, 2019, 8:12am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/37 "2019-08-14T08:12:28Z")
> [@andybond](#): > > Just heard a new phrase watching this : > > [https://www.youtube.com/watch?v=n\_kDIsY\_8bE](https://www.youtube.com/watch?v=n_kDIsY_8bE) > > A rotard. Someone who likes rotaries. > > Had me chuckling .. Yeah I heard this term a few weeks back to and instantly felt that it suits be perfectly. ---
**Author:** ![system](https://turborenault.co.uk/uploads/default/original/3X/9/6/9649aa71d4ecde589ad60a46669f755eb960a019.png) [@system](https://turborenault.co.uk/u/system)\ **Post date:** [August 14, 2019, 10:20am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/38 "2019-08-14T10:20:34Z")
> [@Mark Davis](#): > > First tuning purchase arrived today. Water/meth injection kit from Devilsown. > > I’m planning to run a jet in the compressor of the turbo and a second at the elbow pre throttle. Please be very, very careful running water/meth injection pre-compressor. Also, be very, very careful if your car has a working PCV setup on it (not sure if it will or not) that circulates crankcase gases back in to the pre-compressor air pipework. I had a bit of input in to a system at a previous role for a Global Fortune 500 automotive company who were running a water / meth injection system on a production engine for R&D work. The injection was post compressor but it had a full PCV system with the crankcase gasses coming back in to the compressor inlet. Unless you have coated compressor blades you WILL end up needing a new turbo as the water droplets eat the edges of the compressor wheel away and you end up running higher turbo speeds to compensate for the loss of boost. It did take a few hundred hours of running before the turbo was toast but it was starting to degrade fairly early on so not an immediate worry but something to think about. ---
**Author:** ![DaveL485](https://turborenault.co.uk/user_avatar/turborenault.co.uk/davel485/32/12_2.png) [@DaveL485](https://turborenault.co.uk/u/DaveL485)\ **Post date:** [August 14, 2019, 11:12am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/39 "2019-08-14T11:12:46Z")
> [@stavers](#): > > water droplets eat the edges of the compressor wheel away Surely if its atomised at high pressure this would be negligable? ---
**Author:** ![system](https://turborenault.co.uk/uploads/default/original/3X/9/6/9649aa71d4ecde589ad60a46669f755eb960a019.png) [@system](https://turborenault.co.uk/u/system)\ **Post date:** [August 14, 2019, 11:33am UTC](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636/40 "2019-08-14T11:33:34Z")
> [@DaveL485](#): > > Surely if its atomised at high pressure this would be negligable? The problem is that it’s going in to the compressor wheel with the normal air intake if it’s injected pre-compressor. So even if it’s injected at high pressure it still won’t be fully atomised as the energy transfer to the intake air will cause some water to condense. Even minuscule droplets cause issues when hitting the tips of blades going at 150k+ rpm. If it’s coming through the PCV system then it’s not at high pressure at all. The system I worked on had injectors in the manifold aimed directly at the intake ports like PFI. Any water in the compressor wheel came from the PCV system and it completely ate the compressor edges away. Only way to stop it was to have coated blades but that only prolongs the inevitable rather than preventing it. Albeit for enough time to not be a problem for most applications. [Previous page](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636.md?page=1) [Next page](https://turborenault.co.uk/t/marks-rx7-lets-break-a-rotary/34636.md?page=3)