Ian's S3 13b Turbo II Conversion

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myatt1972
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Re: Ian's S3 13b Turbo II Conversion

Post by myatt1972 » Mon Aug 27, 2018 10:24 pm

I'd have thought mig welding would be better, I have a friend with big 3 phase migs who can weld that for you, he builds boats in Hixon. (and I have his porsche in my workshop ;) )
Keith...

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ian65
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Re: Ian's S3 13b Turbo II Conversion

Post by ian65 » Mon Aug 27, 2018 10:30 pm

myatt1972 wrote:
Mon Aug 27, 2018 10:24 pm
I'd have thought mig welding would be better, I have a friend with big 3 phase migs who can weld that for you, he builds boats in Hixon. (and I have his porsche in my workshop ;) )
ok sound thanks... I'll cut and tack it up then give you a shout
1986 Series 3 13B Turbo II
http://rx7fb.com/viewtopic.php?f=2&t=2400
1992 Peugeot 205 1.9 GTI
1975 Honda SL125 Street Scrambler

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DKWW2000
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Re: Ian's S3 13b Turbo II Conversion

Post by DKWW2000 » Tue Aug 28, 2018 7:15 pm

I admire your guts taking on the TII electrics........if there is any thing I can help with the wiring (relating to mine) I will be glad to. I can't wait to hear your description of the performance sya
RX7 FB S3 - RX7 FC TII Vert
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander

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ian65
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Re: Ian's S3 13b Turbo II Conversion

Post by ian65 » Tue Aug 28, 2018 8:51 pm

DKWW2000 wrote:
Tue Aug 28, 2018 7:15 pm
I admire your guts taking on the TII electrics........if there is any thing I can help with the wiring (relating to mine) I will be glad to. I can't wait to hear your description of the performance sya
thanks Pete th:
1986 Series 3 13B Turbo II
http://rx7fb.com/viewtopic.php?f=2&t=2400
1992 Peugeot 205 1.9 GTI
1975 Honda SL125 Street Scrambler

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Hobbawobba
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Re: Ian's S3 13b Turbo II Conversion

Post by Hobbawobba » Tue Aug 28, 2018 9:31 pm

ian65 wrote:
Mon Aug 27, 2018 8:24 pm
myatt1972 wrote:
Mon Aug 27, 2018 6:34 pm
That Megasquirt ecu looks scary to me, fair play for taking that on Ian W(p
looks bloody scary to me too, fitting the engine in the hole is the easy bit... getting it to run.... :shock: :shock: :shock: :? :?
Oh yes, I very much agree! :cry: :lol:

I had been thinking about swirl pots for a while now. Debated getting some aluminium and welding something up to fit in front of the rear axle. Against the back seats. There is a decent amount of room there and would only cost about 25 pounds. But the last week or so I have been contemplating getting one of those internal surge tanks that get installed into the OEM tank. Aeromotive or Coachman Performance who make RX specific ones with low fuel safety setups. It seems like wayyyy less hassle! :o Less hoses, less noise, cooler fuel (hot fuel wont be recirculating back into the swirl pot). Would prefer not to mod the tank though

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ian65
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Re: Ian's S3 13b Turbo II Conversion

Post by ian65 » Tue Aug 28, 2018 9:58 pm

I don't want to mod my tank either, they are so rare in good condition and mine was new old stock so it's in great condition.
I had a real good look under the car yesterday while it was up on the ramp and space for a swirl pot is quite limited, I reckon I could fit one of these just behind the fuel pump location...

Image

it's 207mm tall and 100mm in diameter so should just about fit without fouling anything or protruding below the bottom of the car and 1.5 ltr capacity which should be able to feed the 13bt
1986 Series 3 13B Turbo II
http://rx7fb.com/viewtopic.php?f=2&t=2400
1992 Peugeot 205 1.9 GTI
1975 Honda SL125 Street Scrambler

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Hobbawobba
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Re: Ian's S3 13b Turbo II Conversion

Post by Hobbawobba » Wed Aug 29, 2018 9:53 pm

Yeah doesn't seem to make much sense in modding a perfectly fine tank.

Those are very nice! I was also under my car today haha. Managed to figure out a 1.5L size bottle can fit in that spot quite nicely as you also saw. About the same dimensions. Was thinking of making my own version of that really :lol: . Would be a lot cheaper. Maybe with a fitting underneath the pot, rather than towards the bottom? Like this https://rover.ebay.com/rover/0/0/0?mpre ... 1233227821

The low pressure feed and overflow shouldn't need to be AN fittings, right? Just push on/worm clamp? Debating a few things. If I could find one cheap enough then it'd be a done deal ha. Will have another look and measure tomorrow

TOOL
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Re: Ian's S3 13b Turbo II Conversion

Post by TOOL » Thu Aug 30, 2018 3:06 am

Mega squirt looks time consuming. How long has it taken?
Brave man. Must be satisfying though.

Have you considered nipping out your good tank and fitting a custom tank in the wheel well? Connect it up to the usual filler.

Then you can have it built with in tank efi pump and even remove the need for a swirl pot.
Or still run the swirl, but with tonne of space underneath.

You’ll also gain lots of space for huge rear muffler to keep power up and noise down.

Worth investigating.
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Chud
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Re: Ian's S3 13b Turbo II Conversion

Post by Chud » Thu Aug 30, 2018 9:03 pm

I ran a swirl pot for a while but it wasn't big enough to keep up, it was in the boot. Ramon had a horizontal one in the gap behind the stock pump which seemed to work ok. I did what Tool said in the end, just kept the stock tank but had a custom one made while running efi. Never ran out of fuel on WOT then...

If you do have the luxury of doing that, it doesn't half save you a lot of pipework and potential leaks - my mate who is a milk tank fabricator made mine for around £300.
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1980 series 1 RX7
1983 series 2 RX7
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1959 VW Splitscreen Kombi "The Queen"
1971 VW Adventurewagen
1966 Porsche 912

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ian65
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Re: Ian's S3 13b Turbo II Conversion

Post by ian65 » Thu Aug 30, 2018 11:04 pm

what size pot were you using Chud? Mind you, that engine of yours was a bit of a monster...
1986 Series 3 13B Turbo II
http://rx7fb.com/viewtopic.php?f=2&t=2400
1992 Peugeot 205 1.9 GTI
1975 Honda SL125 Street Scrambler

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