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Post by noobie on May 7, 2019 7:48:43 GMT
you could always spin it slowly. finding something like 50-70hp n/a is expensive even with a v6. The rotrex might be the cheap option. And as easy as an NA engine on the gearbox...if you run light boost you might squeek by without an intercooler and save weight (for about two months before you decide you need the monster power). I'm using a T7 lightweight heater plumbed into a half dash's oem demister pipes/outlets. Saves 4kg off the nose for just the heater, but retains demisting capability which imho is indispensable in our climate. There is an even smaller/lighter version available that might or might not be able to just about demist the window. |
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Post by V6 on May 7, 2019 16:53:38 GMT
Good thinking on the supercharger. I forgot you can change the pulley wheels to adjust them. An idea to ponder! Do you have a link to this T7 heater? Sounds like a plan  |
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Post by V6 on May 7, 2019 18:43:10 GMT
Just had an email from a tuner in USA. They have been working on new cams for years. They will be coming out soon. Along with some new valves and springs. Could be an easy drop in tweak. Apparently the cams do limit things somewhat. So an easy improvement I could do.
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Post by noobie on May 8, 2019 6:05:21 GMT
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Post by V6 on May 8, 2019 6:23:38 GMT
Thanks for the link. Do you need any of the other accessories they list to hook it up in our cars?
Every time I see a fives dash removed it strikes me how insane the size of the heater system is. I love ditching mass like that.
One of the early things I did was to strip my boot of carpet, aeriel, huge battery, paint it all black, then fit a very light Odyssey track battery. Such easy gains.
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Post by noobie on May 8, 2019 16:03:11 GMT
You added weighty paint? (gasp)
The accessories depend on what you want to hook the heater up to. If its the stock copper pipes then yes you'll need one of their converters or figure out something that does a similar job.
The whole Hvac system on a non airconditioned NA weights about 5kg. Like most things on an MX5 it looks heavier then it actually is. But its in the front,
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Post by V6 on May 8, 2019 20:26:08 GMT
I can use my partners car for the odd occasion in the winter. Or perhaps get a second car for myself. Then I can keep my five off the road when it's cold. So I won't need much of a heater at all. Then it would be quite fun to remove most of the dash gubbins. Not just weight, but visual junk gone.
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Post by moclan on May 13, 2019 19:10:02 GMT
Wow!
Didn’t realise the topic had started.
This is really looking nice Paul.
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Post by V6 on May 14, 2019 18:54:09 GMT
Cheers  It's been a slow two weeks. The lightening of the flywheel and it's new improved design of custom spacer has caused a delay. We have been waiting for an engineering company. Hopefully the wait will be over this thursday. I'm sure we will have some fresh photos of some progress next week. |
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Post by V6 on May 23, 2019 17:49:01 GMT
Finally... After a long pause we are back on track to some progress. The custom flywheel spacer, bolts with added shoulders, plus the lightened flywheel all returned from the engineering company. Apparently they fitted perfectly.
So the subframe, engine, gearbox and new parts were all refitted and the car is back together again. Looking much the same as the last photo. Plus a refreshed Torsen LSD with a 3.6 ratio was fitted. Along with the gearbox speedo mods from the Mazda main dealer.
Next... Custom exhaust fabrication to meet up with the CompTech headers from USA. Mount the Holley intake. Fit the upgraded fuel pump. Get it running...
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Post by V6 on May 25, 2019 18:11:15 GMT
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Post by V6 on May 25, 2019 18:12:46 GMT
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Post by V6 on May 25, 2019 18:24:31 GMT
The new spacer is a vast improvement over the item which comes in the kit. Instead of soft alloy and plain bolts this is made from steel with stronger larger bolts. All forces now go through the smooth bolt shoulders which are a tight fit into the locating holes, rather than forces tranmitted via bare threads. This was the weak point in the kit, as all else looked really well made and thought out. So an odd oversight on a very important part.
We may be getting a custom radiator made to avoid the huge air intake. Or find a shorter radiator. Lots of little jobs to finish yet.
Happening next... Custom exhaust system fabrication, plus getting the CompTech manifolds ceramic coated.
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Post by wannabe on May 25, 2019 22:22:39 GMT
Woo, you sorted the photo upload thing! Apologies I failed to get to it this week! The spacer looks like a serious bit of kit, lol. Rad and air intake clearance looks like it might be... tight... Remind me - is the plan effectively a cone filter straight off the intake? If so, could a custom pipe arrangement that splits into two be an option, with a filter pointing to each side? |
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Post by V6 on May 26, 2019 5:37:22 GMT
No worries mate. Sorry I didn't find and try the uploaded earlier. It was hidden right in the middle at the top The current options being discussed are... 1. Use a Corvette air intake, which is short but wide, to go over the narrow radiator top space and down into where the bonnet latch is. 2. Same route as above but using soft squidgy silicone. 3. Have a custom radiator made with a U shape semi circle dip in the top to allow more room for the intake pipe. Same route as above. 4. Have a deeper U shape in a custom radiator to allow the placement of an air filter down and behind the radiator in that huge space created by the V6 sitting so far back. 5. Finding a shorter height radiator from another car which will allow a 90 degree angle to come off the throttle, then go along sideways on top of the radiator. Filter to be placed behind the passenger headlight. The trick here is keeping the left hand high point the same to avoid air bubbles getting into the head apparently. Hence it will likely be a custom job. Oh well, fun niggles to overcome. Failing all of above go full MadMax and have a cone filter coming out of the nose. "OEM+++ Oh screw it" 😁 |
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le sigh