Originally Posted by bellwilliam
(Post 807160)
The list is a collection of all known FI Miata issues. it doesn't mean you need all the mods listed. The list doesn't distinguish between:
150whp turbo or 400whp turbo 20 minutes HPDE or 3 hours race driver who is 10 seconds above or a driver who is 10 seconds below SM record. obviously if you are running 150whp turbo in 20 minutes HPDE going 10 seconds slower than SM record, I am sure you do not need ANY of the stuff on the list. On the other hand, if you are Savington in his 350whp, you will need everything on that list to survive a 3 hours enduro race. |
Originally Posted by GeneSplicer
(Post 806944)
^ yeah - tell me 'bout it :vash: not for long though :) And I thank you for your pain in experiencing that - sure made mine easy to diagnose :fawk:
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Originally Posted by emilio700
(Post 807354)
Yup
EGT (E85 exempts me from this requirement) Diff cooler (I need one of these) Tranny cooler (I need one of these) |
Originally Posted by Savington
(Post 807464)
+1. On that entire list, there are three things I don't have:
EGT (E85 exempts me from this requirement) Diff cooler (I need one of these) Tranny cooler (I need one of these) I would like to get my turbo to that level, but, That is more money than I make currently. I would like to have a better car and a mean ass turbo on the track, I guess I will have to settle with teh slow. Although, neither of my cars are together yet. |
Originally Posted by chicksdigmiatas
(Post 807532)
All of this reminds me why I am building a NA track car. Because I am cheap.
. +1 on what savington said about E85. It lets you get away with a lots |
I think he means Naturally Aspirated.
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When I said na making 400whp, I did mean naturally aspirated.
If you are making 400whp regardless how you achieve it, you will need to handle its thermal, putting power down, etc... |
Originally Posted by Savington
(Post 807464)
+1. On that entire list, there are three things I don't have:
EGT (E85 exempts me from this requirement) Diff cooler (I need one of these) Tranny cooler (I need one of these) |
Originally Posted by hustler
(Post 807776)
We talked about this months ago. Come up with something. I still like the idea of a NASCAR style drive-shaft belt pump.
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Electric fluid transfer pumps from MOCAL. Self priming and flow a good amount.
I have mine pulling oil from the bottom of the pan, pumping through an oil cooler, and back into the top of the pan. Works like a charm. You can do the exact same thing with your transmission or differential really. |
Originally Posted by Savington
(Post 807464)
+1. On that entire list, there are three things I don't have:
EGT (E85 exempts me from this requirement) Diff cooler (I need one of these) Tranny cooler (I need one of these) The breather and oiling system isn’t covered by the list and I think seems to be a problem for boosted track cars especially in the 300+ hp range. The stock system sucks and most of what people have been trying don’t seem to work well either. I got a setup that seems to be working OK now but I think the way to go would be dry sump. Bob |
I've been waiting for a dry-sump set-up which costs less than an OSGiken diff for a while now.
|
Originally Posted by Savington
(Post 807464)
+1. On that entire list, there are three things I don't have:
EGT (E85 exempts me from this requirement) Diff cooler (I need one of these) Tranny cooler (I need one of these) The breather and oiling system isn’t covered by the list and I think seems to be a problem for boosted track cars especially in the 300+ hp range. The stock system sucks and most of what people have been trying don’t seem to work well either. I got a setup that seems to be working OK now but I think the way to go would be dry sump. Bob |
Originally Posted by emilio700
(Post 806314)
[*]RX7 460cc injectors
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Originally Posted by reddragon128
(Post 836635)
What's bad about the 460cc rx7 injectors. I have the 550cc high impedance ones, are those also not the ones to use for track?
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Originally Posted by shuiend
(Post 836644)
Its not that they are bad, they are just a very old design.
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Originally Posted by reddragon128
(Post 836646)
Would that explain why I have issues trying to get off and on the throttle smoothly? I've been trying to get rid of this lurching problem when i get off and on the throttle. I try to get on the throttle as gently and smoothly as i possible. It's not like the car is rocking back and forth like crazy, but it still jerks, which is something I really don't need mid-corner. lol.
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Originally Posted by shuiend
(Post 836654)
It could possibly explain it. How long ago were they last cleaned? What engine management? Do you have datalogs of it?
RX7 injectors are very well-known in the RX7 world to be extraordinarily unreliable if they haven't been cleaned. |
Originally Posted by hustler
(Post 808190)
I've been waiting for a dry-sump set-up which costs less than an OSGiken diff for a while now.
|
Originally Posted by reddragon128
(Post 836635)
What's bad about the 460cc rx7 injectors. I have the 550cc high impedance ones, are those also not the ones to use for track?
Not saying that is your problem, but the 1100cc EV-14 injectors I had idled better than freshly cleaned (Witch Hunter) 550cc RX7 injectors, even on pump gas. They are the shizzle, and priced accordingly. DVCN ended up with mine when I parted out my turbo car (sniff) and he is really happy with them; he is running E85 in a turbo Miata. For the track responsiveness may not matter as much since the injectors are at a high duty cycle anyway. But then again the spray pattern and droplet size is still important, and IIRC the EV-14 spray pattern is a lot better than the RX7 injectors. I am sure someone **cough**Emilio**cough** will be along shortly to clarify. |
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