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Post by wannabe on May 26, 2019 10:13:36 GMT
I reckon 1 or 2 could be quickest/easiest - I guess it would be basically the same as a Jackson Racing Cold Air Intake?
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Post by niklas on May 26, 2019 10:21:04 GMT
You can drop the rad a bit and then use option #1. That would be nice.
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Post by Zed. on May 26, 2019 10:49:54 GMT
You can drop the rad a bit and then use option #1. That would be nice. or angle the rad slightly? if you feel adventurous, look at rads from diferent makes, especially crossflow types as they can be more efficient than vertical-flow jobbies, also, theres plenty of 'twin-pass' crossflow rads around if you can use both hoses on the same side? I'm going to try a mk2 polo rad in my 1.6 car, It's crossflow & twin-pass as well as slightly smaller & hopefully more efficient than a 'normal' mx5 item  (also has hoses on same side so hopefully neater installation?) ^^ When I get round to it  the corvette intake fits well (LS v8 conversions seem to all use them? also positions the 'intake' in a 5's 'mouth' behind the bumper for nice cold air  ) and iirc is also the airfilter housing at it's front end? sorta 2 birds & 1 stone  Rich. |
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Post by wannabe on May 26, 2019 13:21:49 GMT
the corvette intake fits well (LS v8 conversions seem to all use them? also positions the 'intake' in a 5's 'mouth' behind the bumper for nice cold air ) and iirc is also the airfilter housing at it's front end? sorta 2 birds & 1 stone I worry about intakes being that low - surely they suck up a load of spray off the road when it's hacking it down with rain and you're driving at speed on the motorway, nevermind if you find an unexpectedly deep puddle or have no choice but to ford a river?! |
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Post by Zed. on May 26, 2019 13:50:35 GMT
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Post by V6 on May 26, 2019 14:14:20 GMT
Thanks for all the ideas. Another I had this morning... 6. Move the radiator back closer to the engine. Leaving enough space for a 90 angle silicone intake to go downwards between the radiator and the cross member. Clearly we would need to add some alloy panels to force the air through the radiator and not let it escape around the edges. Plenty of room for this as the engine is much shorter than a four pot. But it may be tight! This coud be the easiest of the lot though.
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Post by V6 on May 26, 2019 18:07:38 GMT
We will also have a play with one of these... Short and squidgy. May even be able to cut it to fit. Especially if the radiator can be moved or angled a little. Worth a quick try anyway, before we go extreme  |
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Post by wannabe on May 26, 2019 20:37:12 GMT
from MT.net thread called 'Another LS1 build'www.miataturbo.net/build-threads-57/another-ls1-build-98614/I've been following this since it was first posted, impressed... some good ideas there & some clever adapting of other parts also, maybe the front suspension is a little overkill for the '5 but 10/10 for effort! That. Is. Insane.  What was wrong with the standard suspension arrangement?? lol |
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Post by V6 on May 26, 2019 20:44:29 GMT
That sort of build strikes me as... They did it because they could. Not exactly necessary.
I do wonder how much the front of that car now weighs with a V8 and a small bridge over it.
Cool skills though!
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Post by wannabe on May 27, 2019 19:52:23 GMT
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Post by wannabe on May 27, 2019 20:35:23 GMT
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Post by Zed. on May 27, 2019 20:54:27 GMT
it's sorta nice of them to give a good ammount of details for you to copy the dimensions & get someone in the UK to make a 'kit' (crank & rods) then it's easy to order pistons to suit, would save a few ££'s & no import  although for 4K I'd fit a bigger engine to start with, if I had to use 4 cylinder then maybe the Kia 2L fe engine (looks almost like an enlarged mx5 engine) or my all time favourite, the Vauxhall XE 2L Rich. |
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Post by V6 on May 28, 2019 8:11:19 GMT
The joy of typing out a massive reply... then seeing it vanish. Don't you love computers. The short version... There are no cheap options if you do it properly. Get some real life quotes in. Included postage, import tax, labour from a respected garage. A rebuilt NA engine with ITBs... you may as well look at engine swap kits. Then you'll be different from the herd, imho. You then have the option to add lovely soundtrack, more reliability, whatever floats your boat. My slippery slope resembled this, considering...
1. Adding a cam and ITBs to my 1.8 four pot. I received insane quotes for low power.
2. Adding a stroker kit to the above... double the cost above for a bit more power.
3. So if I spend that much I may as well get high power. Looked at decent turbo kits, ie from G19. Add in a rebuilt forged engine to handle it long term... ouch again!
4. As above, with a tasty centrifugal top end supercharger for crisp throttle. Probably the ultimate "standard" five? Even more money!
5. Taking a step back, I could get an entry level engine swap for less than all of the above. Example Lexus V8 or similar. Cheap, but too much torque for the transmission and too much weight. What else?
6. Rocketeer is the only sensible UK option. Tested kit, UK backup, not as expensive as you may think.
7. But wouldn't it be cool to have it all JDM? More power would be cool... magic 300 possible? No timing chains please.
8. Well beyond my wallet... but an imported USA V8 swap with Flyin Miata transmission would be fun. If you could ditch some serious mass with carbon and titanium. Twice the cost of mine at the very least I'd guess. I stopped counting the costs part way through! Also... the LFX 3.6 V6 option fits this category too, as you need to upgrade the entire transmission just the same due to its high torque output. Although the V6 will be lighter, better handling and cheaper. But at this ultimate level of cost... wouldnt you want to say "To hell with it, I want a Yank V8 soundtrack!" Lottery win please!
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Post by Vindi (Russell) on May 28, 2019 19:53:33 GMT
Out of 1, 2, 3, 4 I'd go with 4 ... I've had drives in a couple of Rotrex powered cars and the way they deliver the power is so much nicer than a turbo.
Rocketeer "not as expensive as you might think"? I had a chat with him at the OC rally ... more like half as much again !! More than £10k for the engine kit, and you then have to add your own car which would need seriously uprating to match. Certainly no less than £15k to build a decent Rocketeer powered car, I think your route is an absolute steal compared to that, and should give better performance as well.
Option 8 ... LFX ... that's where I'd head given no budget limits, the standard drive train will handle it in standard format but for a safety margin I'd go with a Cadillac backend. Probably not much more power than your option given a bit of tuning though?
Russell
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Post by V6 on May 28, 2019 22:00:18 GMT
What I meant by not that expensive, is by comparison... How about these quotes I had... A - £4000+ just to fit some ITBs on a mazda engine LOL. B - £2500+ labour and tuning, roughly £1500 parts, £500 import tax and postage, plus extras just for an engine rebuild. Either for forged parts for accepting turbo or SC power, or for stroking an NA engine. Total ballpark roughly £4500+ C - £3500+ for a decent turbo kit, excluding exhaust system. D - £4500 just for a top end supercharger, without any fitting, or kit, or tuning. Then start adding up some of those combos above... ie, forged rebuild, plus a turbo kit... £8000+ etc The combos soon get out of hand imo. All for the same mazda engine, just with more grunt. Not cheap! So with man maths applied... what can be had for a "bit" more?
Also, not that we do this for money but... How much of that all goes down the drain upon resale time? Turbo MX5 don't seem to sell for a fortune, from the casual look I've noticed. Not that I've really looked properly. Just my impression to date. Where as I'd expect something a bit different will hold more money, such as Rocketeer, V8 swaps, etc. They are far more rare so that always helps.
Anyway... If we considered money too much we wouldnt get anything done! In fact leaving the damn thing alone and spanking it with an OEM 140bhp and a sporty exhaust is probably the wisest thing of all. So do whatever what you want and HAVE FUN |
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(also has hoses on same side so hopefully neater installation?)
) and iirc is also the airfilter housing at it's front end? sorta 2 birds & 1 stone 
le sigh
Jul 15, 2023 20:03:52 GMT
le sigh
Jul 15, 2023 20:03:52 GMT