The Triumph Dolomite Club - Discussion Forum
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SprintV8 going 13B Rotary
http://forum.triumphdolomite.co.uk/viewtopic.php?t=35342		 Page 2 of 7
Author:  RichardHyde [ Fri Jul 03, 2020 10:12 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Hi Phill,

I see that you’re using the Sprint diff. What sort of power / torque are you expecting ?

Are you planning on using an LSD or stronger halfshafts etc ?

Thanks, Richard
Author:  SprintV8 [ Fri Aug 28, 2020 5:35 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Richard
Power will be in region 250>280 Bhp (Standard RX8 231bhp)
I’ll got a Eaton M90 Supercharger from a Jaguar XJR. 4.0lt.
Which I’m hoping to fit😏.

She still has the LSD from when it was originally built from me.

I’ve noticed Ken Clarke does strengthened half shafts.
So there’s a option if needed.

Engine mounts are 99.9% done.
Gearbox mount just needs tidying up.
Exhaust manifold again is almost finished.
Propshaft is fitted. ( Slight balls up on rear diff flange size my fault but now has the larger 27mm UJs)
Also located a Greddy large capacity Aluminium sump pan.

Still lots to do.
Author:  SprintV8 [ Tue Oct 06, 2020 7:20 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Not much of a update really.
With the full weight of the rotary engine and gearbox.
She’s sitting about 3 inches higher on the front.
New shorter springs ordered 2.1/4 200lbs at a starting point.

Got a Speedbox that changes a Sat Nav signal (Can also use VSS and can bus) into a mechanical rotation so I can use the original speedo.

https://www.speedhut.com/ecommerce/prod ... -Included)

Question is where did the 170mph speedo come from.


Image

Also ordered a 10,000rpm Rev counter.
https://www.speedhut.com/gauge/GR4-TACH ... hift-light
Author:  SprintV8 [ Wed Oct 14, 2020 10:36 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Revcounter arrived.
Does look really good.
Include’s shift light’s.
Max rev recall.
Factory ECU rev limiter is set at 9500.

Image
Author:  Carledo [ Wed Oct 14, 2020 11:05 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Quote:
Not much of a update really.
With the full weight of the rotary engine and gearbox.
She’s sitting about 3 inches higher on the front.
New shorter springs ordered 2.1/4 200lbs at a starting point.

Got a Speedbox that changes a Sat Nav signal (Can also use VSS and can bus) into a mechanical rotation so I can use the original speedo.

https://www.speedhut.com/ecommerce/prod ... -Included)

Question is where did the 170mph speedo come from.
It looks like a Smiths Classic. Aftermarket product fom Smiths, you can get it with cable or electronic operation, I have the electronic version in the Dolomega as the Omega's speedo was driven off the ABS signal. Yours looks like a 1000TPM drive ratio, coincidentally exactly the same as the Sprint original.

Image

Steve

PS, I'm under no illusions of being able to get mine up to 180mph! The Carledo won't go much over 115 @ 5100 rpm in 5th gear, even though the limiter doesn't cut in till 7200rpm. The aerodynamics (or lack thereof) stops it before it's anywhere near flat out.
Author:  SprintV8 [ Thu Oct 15, 2020 6:49 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Steve.

I’ve go no idea where the speedo come from.
I can only assume it’s always been in the Sprint but I’ve never noticed.

My goal is to get to the 170 mark LOL.
Author:  Carledo [ Thu Oct 15, 2020 9:42 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Here you go mate, pic is from Merlin Motorsport pages.


Image

Steve
Author:  SprintV8 [ Fri Dec 04, 2020 10:56 am ]
Post subject:  Re: SprintV8 going 13B Rotary
This should get me to the 170 easy enough.

Image
Author:  Mad Mart [ Fri Dec 04, 2020 11:49 am ]
Post subject:  Re: SprintV8 going 13B Rotary
Is that BHP or MPH Phill? :woohoo:
Author:  SprintV8 [ Fri Dec 04, 2020 1:31 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
If that was a genuine 3 Rotor engine we are talking 170mph+
Seriously more power than a TVR AJPV8. 😏

Sad picked up yet another RX8 engine for parts/mocking up.
Just put some of the housings and plates together.

20B three rotor would be a major upgrade and ££££££s

https://youtu.be/jOclop23uBw
Author:  new to this [ Fri Dec 04, 2020 10:26 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
[color=#0000FF What fuel tank are you going to use ?

Dave[/color]
Author:  SprintV8 [ Sat Dec 05, 2020 10:05 am ]
Post subject:  Re: SprintV8 going 13B Rotary
Having a new alloy tank made up.
Capacity will be the same as the Sprint or more.
Surge pot built in as well as baffled.
Original fuel cap and part filler tube.
Will sit in between rear wheel arches.
Similar to the works Escort style.

Just knocking up a CAD (Cardboard added design) one to check fitting.
Still trying to find a suitable in tank fuel pump and filter.
Or will be a inline pump and filter.
Author:  new to this [ Sat Dec 05, 2020 6:42 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Quote:
Having a new alloy tank made up.
Capacity will be the same as the Sprint or more.
Surge pot built in as well as baffled.
Original fuel cap and part filler tube.
Will sit in between rear wheel arches.
Similar to the works Escort style.

Just knocking up a CAD (Cardboard added design) one to check fitting.
Still trying to find a suitable in tank fuel pump and filter.
Or will be a inline pump and filter.
Ive ordered a fuel pump from classic Range Rover going to fit it inside the dolomite tank

Dave
Author:  SprintV8 [ Sat Dec 05, 2020 9:49 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Are you going to baffle around the pump.
To prevent lost of fuel when cornering etc.

Hence why I having a surge pot built into the new tank.

I don’t think there’s anything on the RR pump to prevent this ?

I’m sure someone here used a pump assy from a MX5.
Author:  new to this [ Sun Dec 06, 2020 12:43 pm ]
Post subject:  Re: SprintV8 going 13B Rotary
Quote:
Are you going to baffle around the pump.
To prevent lost of fuel when cornering etc.

Hence why I having a surge pot built into the new tank.

I don’t think there’s anything on the RR pump to prevent this ?

I’m sure someone here used a pump assy from a MX5.
Phil

Ive got a 4inch diam pipe im fitting inside the tank, and the pump will sit inside the pipe,it will act a bit like a baffle for the pump

Dave
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