Search found 655 matches

by 350matt
Wed Dec 04, 2019 12:10 pm
Forum: RX-8 Discussion
Topic: Electric SUPERCHARGER
Replies: 88
Views: 2554

Re: Electric SUPERCHARGER

yes you can run a bypass valve to avoid choking the engine over 6000rpm?
but you're then paying 3K for a device that 'only' fills up the bottom end

I'm not saying that this isn't desirable but I'd want something that could at least give 1psi at full pelt
by 350matt
Sun Dec 01, 2019 9:27 pm
Forum: Buying
Topic: WTB OEM Cat
Replies: 9
Views: 314

Re: WTB OEM Cat

may I suggest a 200 cell cat from these guys http://catsandpipes.co.uk/universal.html

I've got one and it passes MOTs well enough
a lot cheaper than an OEM cat
by 350matt
Fri Nov 29, 2019 8:23 pm
Forum: RX-8 Discussion
Topic: Help!!!! Is my engine iron scrap?
Replies: 7
Views: 306

Re: Help!!!! Is my engine iron scrap?

there's a few irons on the bay at the moment
by 350matt
Fri Nov 29, 2019 8:19 pm
Forum: RX-8 Discussion
Topic: I have an idea.... Let's hope it's a good one.
Replies: 26
Views: 604

Re: I have an idea.... Let's hope it's a good one.

interesting that he's thinking there's enough of a market for this
from a technical viewpoint its a great idea
the torque vectoring though isn't trivial and needs to be spot on to get the car handling safely
typically the likes of BMW take over a year on this sort of tuning
by 350matt
Wed Nov 27, 2019 7:47 pm
Forum: RX-8 Discussion
Topic: 231 'Stuttering' and revs cutting off and not increasing with clutch pressed and revving.
Replies: 16
Views: 439

Re: 231 'Stuttering' and revs cutting off and not increasing with clutch pressed and revving.

I'd say to check over the intake for any signs of a vacuum leak The best way to locate a leak is to have the engine running and warm and then spray lighter gas /propane or brake cleaner around each joint in turn. If the engine rev's up you've found your leak. Now you might think that spraying lighte...
by 350matt
Wed Nov 27, 2019 7:13 am
Forum: RX-8 Discussion
Topic: buying a used engine
Replies: 12
Views: 353

Re: buying a used engine

so at milage are we 'safe' to assume a used engine is likely to be OK sub 50 K? sub 40 K? I realise there will always be examples that have been overheated or run out of oil blocked cats etc

as I'd like to buy another engine for mine and start rebuilding it now before I really need it
by 350matt
Tue Nov 26, 2019 10:03 pm
Forum: RX-8 Discussion
Topic: buying a used engine
Replies: 12
Views: 353

Re: buying a used engine

Cheers chaps

is there any inspection that can be done to check condition? I was thinking a borescope through the lower plug hole would show some of the condition, potentially you could also remove the inlet manifold and go in through the inlet port too to have a peek
by 350matt
Tue Nov 26, 2019 10:00 pm
Forum: RX-8 Discussion
Topic: Electric SUPERCHARGER
Replies: 88
Views: 2554

Re: Electric SUPERCHARGER

at the moment yes, so currently they are more suited to a small engine such as one you might use for a range extender so you have a 600cc single rotor with a electric supercharger that can feed off the 48V battery to give the same power we have now but with much improved fuel consumption who knows p...
by 350matt
Tue Nov 26, 2019 9:07 pm
Forum: RX-8 Discussion
Topic: buying a used engine
Replies: 12
Views: 353

buying a used engine

Peeps being at some point most of use are going to need a rebuild of our engine what do we think a used engine is worth? as without a compression test or borescope inpection of the internals buying a lump from a scrappy is complete lottery does anyone have a method for getting a good unit? where sho...
by 350matt
Tue Nov 26, 2019 8:57 pm
Forum: RX-8 Discussion
Topic: Electric SUPERCHARGER
Replies: 88
Views: 2554

Re: Electric SUPERCHARGER

not as bad as you might think on similar applications I've seen there's no need for bypass valves etc ( with the right sized compressor) the motor drive is smart enough to see that the impeller is being turned and can be configured to 'freewheel' so there's no pumping loss over the compressor for ru...
by 350matt
Mon Nov 25, 2019 7:10 am
Forum: RX-8s for sale
Topic: Selling - Stormy Blue Mazda RX8 2008 231 Version 63k miles
Replies: 5
Views: 458

Re: Selling - Stormy Blue Mazda RX8 2008 231 Version 63k miles

might be worth checking over the intake for a splits etc in the rubber hoses and cleaning the MAF sensor too
by 350matt
Thu Nov 21, 2019 12:10 pm
Forum: RX-8 Discussion
Topic: Mates RX8 - almost starts
Replies: 30
Views: 1120

Re: Mates RX8 - almost starts

I've got an aa oldham starter on mine and its been fine

but the other firm do offer a years warrenty?
by 350matt
Wed Nov 20, 2019 7:42 pm
Forum: RX-8s for sale
Topic: Selling - Stormy Blue Mazda RX8 2008 231 Version 63k miles
Replies: 5
Views: 458

Re: Selling - Stormy Blue Mazda RX8 2008 231 Version 63k miles

sorry to say even at £1500 I think you will struggle to sell as it won't start I'll not deny the bodywork looks great and thats becoming more and more of an issue as these cars age but its location and lack of go without a tow will cross it off a lot of folks lists have you tried plugging in a scan ...
by 350matt
Wed Nov 20, 2019 5:57 pm
Forum: RX-8 Discussion
Topic: Mates RX8 - almost starts
Replies: 30
Views: 1120

Re: Mates RX8 - almost starts

one of these perhaps? https://www.ebay.co.uk/itm/fits-MAZDA-RX8-STARTER-MOTOR-2003-2012-NEW-HEAVY-DUTY-14-TOOTH-SUPER-HI-TORQUE/132320069787?fits=Model%3ARX-8&_trkparms=ispr%3D1&hash=item1ecee4089b:g:JUsAAOSwIzBbRVPK&enc=AQAEAAACUBPxNw%2BVj6nta7CKEs3N0qWTq7io2MT5JeCeJ7%2BmnowHoh18rD4BJkaIzJvb2zPejXE...
by 350matt
Wed Nov 20, 2019 7:01 am
Forum: RX-8 Discussion
Topic: How much is it worth?
Replies: 26
Views: 850

Re: How much is it worth?

you could make your own presumably?
by 350matt
Wed Nov 20, 2019 7:00 am
Forum: RX-8 Discussion
Topic: Mates RX8 - almost starts
Replies: 30
Views: 1120

Re: Mates RX8 - almost starts

Hello Jas did you already replace the battery on yours? if not then measure the voltage across it when cranking it should be at least 10V if not then chrage it up and try again if its still lower than this then replace it and how fast is it cranking? if you plug in a scan tool to the OBD port and us...
by 350matt
Tue Nov 19, 2019 7:37 pm
Forum: RX-8 Discussion
Topic: Windscreen Cleaning
Replies: 28
Views: 652

Re: Windscreen Cleaning

I'm interested to know if this is a goer as well. My concern would be that, if you manage to take enough glass away to remove a scratch, will you change the optics of the glass? I'd rather look through a scratch than a distorted view. reading up on it you have to be quite careful to not concentrate...
by 350matt
Tue Nov 19, 2019 7:07 pm
Forum: RX-8 Discussion
Topic: How much is it worth?
Replies: 26
Views: 850

Re: How much is it worth?

There's a consistent 4-5 degree delta between the ambient temp sensor and the IAT sensor in the MAF sensor from what I've seen on my own car I've tried adding insulation around the front portion of the duct and drilling extra holes in the plastic to try and get some fresher air in there and so far n...
by 350matt
Tue Nov 19, 2019 6:12 pm
Forum: RX-8 Discussion
Topic: Air Filters - HKS or K&N? And what needs oiling?!
Replies: 13
Views: 292

Re: Air Filters - HKS or K&N? And what needs oiling?!

I think the RX 8 intake system is one of the best I've ever seen for an OEM road car the air filter area is large and its all well flow optimised so there's little to be had by replacing the filter element with something more free flowing as the air flow capacity is already large that said I run a C...
by 350matt
Tue Nov 19, 2019 6:05 pm
Forum: RX-8 Discussion
Topic: Windscreen Cleaning
Replies: 28
Views: 652

Re: Windscreen Cleaning

I'm considering this kit https://www.amazon.co.uk/GLASS-POLISH-scratches-deposits-Consumable/dp/B007CJJLIY/ref=asc_df_B007CJJLIY/?tag=googshopuk-21&linkCode=df0&hvadid=272013247845&hvpos=1o1&hvnetw=g&hvrand=13842072856750845100&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9041118&hvta...
by 350matt
Tue Nov 19, 2019 4:55 pm
Forum: RX-8 Discussion
Topic: Windscreen Cleaning
Replies: 28
Views: 652

Re: Windscreen Cleaning

Is it possible to polish the glass to remove scratches? I'd imagine wet and dry paper and T-cut isn't going to do it?

just wondering if there's a way to to get that 'new windscreen' feel without fitting a new windscreen
by 350matt
Tue Nov 19, 2019 4:33 pm
Forum: RX-8s for sale
Topic: FOR SALE 2009 RX-8 R3 Sparkling Black 71k
Replies: 9
Views: 672

Re: R3 For Sale 09 Sparkling Black 71k

good looking car

good luck with the sale, might be an idea to show a image of the engine bay?
by 350matt
Tue Nov 19, 2019 4:31 pm
Forum: RX-8 Discussion
Topic: Mates RX8 - almost starts
Replies: 30
Views: 1120

Re: Mates RX8 - almost starts

Yes thanks once the main power wire between batt and starter was replaced it turned over better and then had to remove plugs to remove all the fuel and after that was then sluggish to start so we tried a better starter motor and now its fixed so in summary the following was wrong with it 1) air / va...
by 350matt
Thu Nov 14, 2019 9:19 pm
Forum: RX-8 Discussion
Topic: CAD Models of the 8
Replies: 6
Views: 376

Re: CAD Models of the 8

whilst we're on the subject are there any decent CAD models of the RX8 engine out there? I've found a very sketchy scan on one of the aforementioned sites
but I'd like something better
by 350matt
Sun Nov 03, 2019 7:17 pm
Forum: RX-8 Discussion
Topic: Confirmed hot start issue - gutted!
Replies: 17
Views: 635

Re: Confirmed hot start issue - gutted!

David,there are one or two people on here atm,that are considering doing diy engine swaps. Why not read up a bit and see if this is a possibility,after all ,you clearly enjoy the car. What is the overall condition of the car? does it warrant a replacement engine? have you ruled out everything else?...

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