Miata Turbo Forum - Boost cars, acquire cats.

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mx5psi 12-03-2016 09:56 PM


Originally Posted by patsmx5 (Post 1378840)
What stall converter are you aiming for? Does it have a lock-up clutch in the converter?

I'm wondering what stall I should aim for. I'm thinking one that will flash to about 5K, and then up as it builds boost to around 6K or so.


honestly not sure my peak everything is at 4K so nothing too big my auto builder is in control of all that i have shown him the original dyno sheet when it was manual and he saw the recent one and has made adjustments to suit

mx5psi 12-09-2016 04:38 PM

It feel perfect alot more responsive revs up heaps easier drives well low boost blazes 2nd gear it never used to do that

i have still got a spark issue on high boost even with my LS coils i think i may have the dwell settings wrong cause it 100% a boost related issue i will check that if that's not it i will upgrade the active wire to the coils other than that iam lost for idea's


i also built a new intake to get every little bit i can
https://cimg0.ibsrv.net/gimg/www.mia...c64e265151.jpg

patsmx5 12-09-2016 04:40 PM

On my IGN1A coils (sort of similar to GM coils) I run 6ms dwell in boost. That will fire a .030" gap at 38 PSI boost.

patsmx5 12-09-2016 04:41 PM

Also would love some videos showing how the converter flashes from a stop when you floor it. And any other videos in general. :)

mx5psi 12-09-2016 05:37 PM


Originally Posted by patsmx5 (Post 1380297)
Also would love some videos showing how the converter flashes from a stop when you floor it. And any other videos in general. :)

i will try and get video's Tuesday its now at a friends factory with the Dyno we were going to run it up last night but he killed his computer that runs the Dyno the converter builder also asked for a video of were is flashes to on the street so i will have to do it at some stage

mx5psi 12-13-2016 04:36 PM

its spot on makes exactly the same power but now it flares up and keeps climbing and feels a a lot better to drive i have worked out what my misfire my ecu had a boost cut set right on the edge of my boost and the auto now loads it up a bit more than with the manual so we have fixed that

only issue is any more boost it leans out cause i have run out of injectors so i need to buy a set of 1550cc injectors to my tuners preference and we will turn it up from 25 psi to 30 psi and get close to my 300 rwkw again



https://cimg8.ibsrv.net/gimg/www.mia...6b70b6e037.jpg
https://cimg0.ibsrv.net/gimg/www.mia...a83e4695ed.jpg

mx5psi 12-20-2016 11:28 PM

UPDATES

its made more power with the better converter iam not happy with trans temp's so i bought a monster cooler but i have to make room for it in the rear of the car

i cannot get my go pro working only video i have is of the car trying to jump off the dyno and it was strapped very very hard. It's back at home now so iam going to clean some stuff up maybe make a new catback as i think there is some power to be found there too all the little bits count the next step
on my plans is weight reduction
https://cimg1.ibsrv.net/gimg/www.mia...a1641654ab.jpg


https://cimg5.ibsrv.net/gimg/www.mia...a63ac3c6c7.jpg
https://cimg6.ibsrv.net/gimg/www.mia...8b4ae96bcc.jpg

sixshooter 12-21-2016 08:22 AM

267kw is about 363hp, so nobody else has to look it up.

mx5psi 01-04-2017 05:22 PM

made the new rear exhaust section 3" stainless and new straight through muffler i offset the muffler so i have room on the passenger side (here in OZ) to fit my trans cooler cars also booked in with my tuner on the 23rd try and squeeze a little more power out of it next step is taking it to the drags in the next month or so and see how it holds up

https://cimg0.ibsrv.net/gimg/www.mia...c0ea0b9401.jpg
https://cimg2.ibsrv.net/gimg/www.mia...c5c132db69.jpg

mx5psi 04-13-2017 02:24 AM

So we turned it up a fair bit the Turbo is Maxed at 26psi and wont give me any more we managed to make it come on a lot harder which is the green line for boost on the photo and it backs up 300rwkw each time.

We tried to take it to the drags but my tow car bailed. I am going to try again on the 21st the only issue is it is now very very hard to put the power down i drove it recently on 280rwkw and you could modulate 2nd on the street but this next level is a lot harder iam just hoping the drag strip has a lot more grip or i have to buy new tyres.

i have enquired about widening stock rims to 15X8's has anyone else done this before ?


https://cimg5.ibsrv.net/gimg/www.mia...fe35209705.jpg
https://cimg7.ibsrv.net/gimg/www.mia...1a87e051c7.jpg

patsmx5 04-13-2017 07:11 AM

Nice!

I have looked into having stock 15's widened from 6" to 8", and it was 300/wheel plus shipping both ways from a reputable place online located in the states. And then I'd need some custom wheel spacers to get the offset right, which are more money. I never did it, but would like to at some point. If I could find a local place that would do it for a fair price I would.

patsmx5 04-13-2017 07:12 AM

What ignition timing are you running at 26 PSI for 300rkw?

mx5psi 04-14-2017 06:32 PM


Originally Posted by patsmx5 (Post 1405599)
What ignition timing are you running at 26 PSI for 300rkw?

17.5-18.8 degrees on my ignition table which is were it is happy i have tried 1 more degree and it only gets me 4-5 rwkw

18psi 04-14-2017 06:40 PM

sounds like it's still got room to go, but it's not like you need any more power :D

miata2fast 04-14-2017 07:51 PM


Originally Posted by 18psi (Post 1406136)
but it's not like you need any more power :D

Thats the funniest shit I've heard all day.

patsmx5 04-15-2017 02:34 AM


Originally Posted by miata2fast (Post 1406144)
Thats the funniest shit I've heard all day.

For real!

mx5psi 12-13-2017 01:05 AM

OK long time from posting

But iam hopefully taking the car to the track on Friday to get a feel for the car and what it wants to do then early next year i will be fitting the 235/60/15 Micky Thompson tyres and softer suspension to see if i can get a better time.
https://cimg0.ibsrv.net/gimg/www.mia...b08f49b6ef.jpg

mx5psi 12-15-2017 03:42 AM

10.85 on my second run with a shit 60 hoping there is more in it
https://cimg7.ibsrv.net/gimg/www.mia...30c8c803fc.jpg
https://cimg8.ibsrv.net/gimg/www.mia...7633e1bedb.jpg

nitrodann 12-15-2017 04:14 AM

Theres your goal.

Fuck me, well done mate.

Dann

sixshooter 12-15-2017 07:56 AM

Wow! 10.85 @ 125! 402 whp! Just wow.

If you put some wrinkle wall slicks on there and got some more R&D and I bet you could hit 10 flat


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