Engine Survey

Place for discussions about the RX-8

What was your mileage when you had your engine rebuilt/replaced

Under 20K
10
2%
20-30K
8
2%
30-40K
10
2%
40-50K
26
6%
50-60K
35
9%
60-70K
36
9%
70-80K
32
8%
80-90K
14
3%
90-100K
12
3%
100-110K
1
0%
110-120K
0
No votes
Over 120K
1
0%
No rebuild yet :)
225
55%
 
Total votes: 410

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boosted
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Re: Engine Survey

Post by boosted » Fri May 04, 2018 9:00 am

My Westy has just reached 1700miles which is 200 miles more than the other 2 failed at ..
5w40 fully syn. Sohn. Gated sump. Hopefully that saga is put to bed....

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13Black (Fri May 04, 2018 9:14 am)
231 streetported Rx8 renny powered Westfield kit race car.
92 Rx7 fd3s stock twins..est.320bhp. Track car.

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Re: Engine Survey

Post by ChrisHPZ » Tue Aug 21, 2018 2:52 am

47.5k and going in this weekend to have a rebuild, high 3’s/low 4’s on the rear rotor. So far starts ok when hot and only struggled twice but my starter was cranking at 350rpm on the comp test 😁
2007 PZ in Brilliant Black - XCarLink Bluetooth adapter, LED “Angel Eye” side lights.
Full Gold Rotary Revs engine rebuild with street port :thumleft:

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Re: Engine Survey

Post by boosted » Tue Aug 21, 2018 3:25 am

2200 miles..de sohnd. Omp disabled just premix .Fresh 5w 40 fs millers nano cfs race woppity woo magic stuff.

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231 streetported Rx8 renny powered Westfield kit race car.
92 Rx7 fd3s stock twins..est.320bhp. Track car.

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Re: Engine Survey

Post by CookieMonster » Wed Aug 22, 2018 4:19 pm

38K no rebuild
Winning Blue 231
Climair Wind Deflectors
Toyo Catback
Gunmetal Rear Lights
Carbon Fibre effect eye lids
Gunmetal Grey RX8 Familia decals
Gunmetal Grey RX8 side decals
Chrome lower front grille
Magnacore leads NGK Spark plugs
Blue interior LEDS
Black side grilles
Racing Beats radiator protectors
Pipercross Panel Filter
Yellow front strut brace
Blue under bonnet covers
Yellow brake calipers

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Re: Engine Survey

Post by nintenjo » Sat Aug 25, 2018 7:15 pm

05 192 45K no rebuild yet.. (coil and leads upgraded to 585 no cat)

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Re: Engine Survey

Post by Bigblueknight3k » Sat Aug 25, 2018 7:47 pm

06 evolve 64k no rebuild runs like a dream

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Re: Engine Survey

Post by Cyanide69 » Mon Aug 27, 2018 8:10 pm

56 PZ 80k no rebuild yet
On replacement cat
Coil and leads upgraded to D585
2004 VR230 - Red/Black Leather - Strakes - Lux Mats - 12/08/2004 - 17/11/2008
2007 PZ BB230 - Lux Mats - Parking Sensors - Strakes - Mishimoto Oil Cooler Lines - Drilled & Grooved Black Edition Brake Discs & Brembo Pads - Magnecor Ignition Leads - 19/03/2009 - ?

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Re: Engine Survey

Post by erniuss » Wed Sep 12, 2018 6:49 pm

67k no rebuild yet , bought it like 4 months ago did only 1k miles only :( no issues so far , apparently 3 previous owners were the same family brother,dad,uncle or something like that , still starts hot within 1,2s.

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Re: Engine Survey

Post by Craig M » Wed Sep 12, 2018 7:06 pm

05 plate 231 - 44k miles - no rebuild - low 7's front & rear rotors - D585's fitted at 32k
55 plate 192 - 87k miles - no rebuild - no compression test results - Mazda Revision C coils with 3k on them
10 plate R3 - 56K miles - no rebuild - low - mid 6's front & rear rotors - D585's fitted at 47k
All 3 have uprated 2kW starters and start hot or cold without fail [-o<

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Re: Engine Survey

Post by willberry70 » Fri Sep 14, 2018 1:03 pm

07, 43K no rebuild (as ever, fingers crossed).
Sparkling Black Kuro SN# 400/500. Green LEDs on door and puddle lamps. LEDs on interior lamps. EBC fronts disks. Uprated battery. Greyed alloys. K&C air filter. RRP Mk2 Coils and MSD Leads.

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Re: Engine Survey

Post by RobinPZ72 » Sun Sep 16, 2018 11:32 am

56 PZ 46k miles no re-build so far. Runs on Pettit protect R and she'll helix HX5 15/40w. Std. Induction, but with K&N panel filter.

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Re: Engine Survey

Post by Mherby » Tue Oct 02, 2018 12:46 pm

91k miles PZ. All the signs of low compression, not bothered to compression test it but it's off the road for the moment. Will be booking in with RRP for a rebuild next year after some saving :)
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Dr. FrankenRex
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Re: Engine Survey

Post by Dr. FrankenRex » Tue Oct 02, 2018 1:52 pm

Just re-visited this thread once again. Changed mine from 'No rebuild yet' to '20-30k miles' :lol:
FrankenRex2, leaner and meaner. RR Full Bridge rebuild with Race Extension porting, Cusco Strut Brace, RB Header, RB Dual Res Decat, Pettit Catback, Eibach lowering springs, Maserati 6 pot brakes, braided brake lines, custom built DRLs, track wheels, Custom front and rear lights, braided clutch line, RB ARBs - the list goes on!

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Re: Engine Survey

Post by Bex » Wed Oct 03, 2018 3:27 pm

Had to do that a few months back too. no fun having a rebuild at that mileage. Is your car back on the road again now?
Bex Airbrushing

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Re: Engine Survey

Post by carnut1974 » Mon Nov 12, 2018 4:59 am

Mines on 89k currently.

Not input the date to the survey yet as need to confirm the engine number is original or not.
I know the last owner had it since 2008 and had I think 40k on it back then. And I know he has not experienced an engine change.
I also found it has the original sluggish starter motor on it.
Just upgraded that to a 14 tooth unit.
Only bought the car summer 2018.
Starts OK hot or Cold but I think a hint of wear present and expected at 89k. Never fails though.

Incidentally if anyone has possibly owned or has any past details on this car - it would be great to know - here's the Reg: WR04MDE.
A long shot I know but any info would be greatly appreciated. 👍🙂
231, upgraded starter motor, Japseed cat back exhaust, stock cat, stock engine. Running 10/40 oil and now premix with Castrol Power 1 Racing 2T fully synthetic two stroke oil. Long term gains or improvements to be monitored.

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Re: Engine Survey

Post by northerner69 » Tue Nov 27, 2018 11:05 pm

I've replaced the engine in my RX8. Original developed hot start issues at around 58K miles. Sold on this engine. Fitted a replacement which I picked up of Facebook, (thanks 13Black). Its an LC Rotary rebuild with about 8k miles on clock since the rebuild.

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Re: Engine Survey

Post by Kamys » Sun Feb 10, 2019 12:42 pm

Heya guys, I know that once you get into mid / high 5s you should be looking for a rebuild. I recently got some very disappointing compression results, however, the car has no symptom of anything. The fuel economy is about the same, starts first time even in appocalyps time, is it possible to get to the rebuild stage with a relatively healthy ''aspect''?

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Re: Engine Survey

Post by AndyBrad » Fri Mar 15, 2019 10:10 am

from what i gather yes. you can be running fine before it detonates / wont start.

5.5 does not mean a rebuild though, just budget for one. @warpcoil ?

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Re: Engine Survey

Post by Dr. FrankenRex » Fri Mar 15, 2019 11:13 am

The compression figures aren't finite, however running an engine with low compression can result in full-on failure which would make parts of the engine scrap and potentially lead to higher costs at rebuild time.

5.5 isn't horrific, but it isn't great either. If it is running OK at the moment I'd probably keep an eye on it and get it tested again in ~6 months to see if it's getting worse, all the while saving for the eventuality.
FrankenRex2, leaner and meaner. RR Full Bridge rebuild with Race Extension porting, Cusco Strut Brace, RB Header, RB Dual Res Decat, Pettit Catback, Eibach lowering springs, Maserati 6 pot brakes, braided brake lines, custom built DRLs, track wheels, Custom front and rear lights, braided clutch line, RB ARBs - the list goes on!

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Re: Engine Survey

Post by warpc0il » Fri Mar 15, 2019 11:27 am

I'm with Dan on this, especially if there's any reason to suspect that car has not been used as intended by the previous owner.

Pottering around in high gears at low revs can cause a build-up of carbon that makes the seals stick and reduces the compression test results, sometimes with little noticeable impact on performance - unless you've just jumped out of another 8.

It often enough just to check that everything else is as it should be, particularly the ignition system and engine oil, and give the car a good opportunity to stretch its legs on a journey.

This doesn't mean speeding everywhere, just holding in lower gears and letting the engine rev.

Alternatively, a treatment with Cataclean first may give quicker results, though you still have to drive the engine hard to make this work.

Be prepared for some beeps from the dashboard and some squeals from the passenger seat :roll:
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Re: Engine Survey

Post by Dr. FrankenRex » Fri Mar 15, 2019 11:44 am

Bex wrote:
Wed Oct 03, 2018 3:27 pm
Had to do that a few months back too. no fun having a rebuild at that mileage. Is your car back on the road again now?
Missed this and realise it was back in October! whoop!

Car is running again. It's worth noting, for the purposes of this thread at least, that my engine failed due to a snapped intake vacuum hose and not due to wear and tear or anything like that.
FrankenRex2, leaner and meaner. RR Full Bridge rebuild with Race Extension porting, Cusco Strut Brace, RB Header, RB Dual Res Decat, Pettit Catback, Eibach lowering springs, Maserati 6 pot brakes, braided brake lines, custom built DRLs, track wheels, Custom front and rear lights, braided clutch line, RB ARBs - the list goes on!

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Re: Engine Survey

Post by Bex » Mon Mar 18, 2019 1:27 pm

Dr. FrankenRex wrote:
Fri Mar 15, 2019 11:44 am
Missed this and realise it was back in October! whoop!

Car is running again. It's worth noting, for the purposes of this thread at least, that my engine failed due to a snapped intake vacuum hose and not due to wear and tear or anything like that.
glad its running again, its no fun when they are off the road.

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Re: Engine Survey

Post by Dan-Lincs » Tue Apr 16, 2019 3:08 pm

05 plate died at 49k :(

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Re: Engine Survey

Post by Alexpb2401 » Fri May 03, 2019 3:14 pm

88k no rebuild (as far as i'm aware..!)

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Re: Engine Survey

Post by v-rex » Fri May 24, 2019 4:54 pm

Re-voted. Went for a rebuild in the end at 81K. One of my rotors was in the low 4s so despite no starting problems I thought it best not leave it too much longer. Plus I really wanted a streetport as well.... :)

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