Carbon8

iTrader: (4)

Couple of things, can someone help me out with.

1) what's the normal fuel pressure for an 8, stock fuel system.

2) Is there a difference between S1 & S2 throw out bearings?

Thanks

paimon.soror

iTrader: (15)

1. 60psi ideal, +/- 2psi is normal

2. Yessir

Carbon8

iTrader: (4)

In regards to an S2 trams swap, imagine the geometry of the fork is different thus meaning they are not the same throw out bearing. Interestingly enough I assumed as much even though ACT list it's bearing is compatible with both versions

Thanks Sir, you are a gentleman and a scholar

I'm also a really big fan of all your technological shenanigans.

paimon.soror

iTrader: (15)

I'll be honest with you, I don't know what about the bearing is different because I too have seen some clutches advert that their bearings are compatible with all years. Maybe something for OD to answer (he is running an S2 trans in his S1) or maybe ASH8 as he has the most details when it comes to the nitty gritty of the S2's differences.

I appreciate your kind words.

Carbon8

iTrader: (4)

Oh well, I have an ACT bearing with 1,000 miles on it, and an S2 bearing is 15 bucks guess I will find out the difference when I get the s2 bearing in. Ill post up pics in the swap thread as no one has done a direct comparison yet.

reddj1

My heat is stuck on. My heater control is fine, it has passed the scan up test...1-16 perfectly. now I'm lost. Please HELP!!!: 2004 RX8

-_- just.gimme.my.ticket

is the reserc on?

Brettus

iTrader: (2)

Sounds like the mechanical valve that allows water into the heater radiator is stuck . it's time for a dive under the dash to find it .....

MarcoT11

Guys I dont yet have access to post my own thread so im asking here. Im really desperate, I stripped my lug studs on my front passenger rotor. So i ordered some from mazda. They should be in tomorrow. I looked at rethreading them but do you think the new ones are just a better idea? Also can anyone tell me how to replace the front lug studs? I saw one person somewhere say that all you need to do is hammer them out but how? dont i have to remove a few things first? details please i cannot get my wheel on without this so im undrivable.

RIWWP

iTrader: (2)

site:rx8club.com replace wheel stud https://www.google.com/search?q=site...hrome&ie=UTF-8

https://www.rx8club.com/series-i-do-...arings-233210/
https://www.rx8club.com/series-i-do-...l-studs-73670/
https://www.rx8club.com/series-i-tec...t-size-224971/

CRO8TIA

WHEEL HUB, STEERING KNUCKLE REMOVAL/INSTALLATION

This link will show you what you need to remove, don't use a hammer, use a shop press, put the new studs in the freezer for a few hours before you press them into the hub, this will shrink them minutely to allow them to be pressed in easier.

dannobre

iTrader: (3)

Its not as easy a DIY as you might think. Might be worth it to get a mechanic to do it if you are doubting your skills

poacherinthezoo

If a flooded engine can be solved by push starting the car - why do so many people spend so much time cranking the engine with the fuel pump fuse out or some other method of cutting the fuel or have the car towed to the dealer? Is it simply due to not thinking of it, is the engine really hard to push start (I've push started several cars and it was never very hard), or something else?

dannobre

iTrader: (3)

LOL
...some like to do it the hard way...

or they have an AT and have no choice

RIWWP

iTrader: (2)

Although, pull starting a car isn't really an option for most people. If they have another car, they often don't have something to connect the two cars. Or they know it's not starting, and it takes a bit for them to figure out that it's flooded. Push starting requires enough people to push, and a slope that is manageable. Often one or both is missing.

My two floods, one was a really bad flood that took a bit with the fuse, and zero inclination to pull start my 8 down a street crowded with other cars and a wife that isn't really ideal for being either driver. The other fired right up with less than a minute of cranking with the pedal down.


So the options are many, and not everyone has the same ease for all options.

Carbon8

iTrader: (4)

Question on Gearing, as I am not familiar with it but would like to learn.

S1 Trans Gear; 3.76, 2.269, 1.65, 1.187, 1, .843
S1 Diff; 4.44
S2 Trans Gear; 3.815, 2.26, 1.64, 1.177, 1, .832
S2 Diff 4.77

S1 Dif S1 trans; 16.6944, 10.07436, 7.326, 5.27028, 4.44, 3.74292
S1 Diff S2 Trans; 16.9386, 10.7802. 7.2816, 5.22588, 4.44, 3.69408
S2 Diff S1 Trans; 17.9352, 10.82313, 7.8705, 5.66199, 4.77, 4.02111
S2 Diff S2 Trans; 18.19755, 10.7802, 7.8228, 5.61429, 4.77, 3.96864

Now it appears the most popular swaps or either S1 Diff w/ S2 Trans, or S1 Trans W/ S2 Diff, anyone care to explain why these or the preferred options.
__________________

BigCajun

iTrader: (1)

Hi all, FWIW I had one flood before I tuned up my 8 & eliminated bad cat. I then started letting it warm up whenever I moved it.
After reading here that 8s flood usually when there is another problem, bad ignition in my case, I decided to try moving it & shutting it off without letting it warm up.
I've done it quite a few times without a problem.
I'm assuming as long as it's running right, I don't have to worry about it.
Anyone feel free to correct me if they know another reason for flooding.

JSIVIA93

hi I just bought an rx-8 it is an automatic transmission and I was just wondering what could I possibly do to my car to increase hp and the low end torque

RIWWP

iTrader: (2)

Serious advice:

Read my newbies guide to modding: https://www.rx8club.com/new-member-f...rx-8-a-233937/

-_- just.gimme.my.ticket

how many rotations your engine gets in each gear
ex 3.76.1 means 3.76 engine revolutions for every revolution of the transmission’s output in that gear

same with the Diff except 4.44 equals how many rotations of the actual wheels/tires you get with every rotation of the transmission output

a ratio of 1:1 means the engine and transmission are both making a revoloution at the same rate

to understand and apply all this to tuning would require ALOT of reading

the s2 trans has better acceleration and the diff has a better top speed
so s1trans+s2 diff= better top speed with less acceleration
s2 trans+s1 diff=better acceleration with less top speed

Carbon8

iTrader: (4)

You sure about this last part, I thought the S2 trans and S1 diff are actually slower than an S1 setup.

Also assuming that then the gear ratio multiplied by the diff is the final drive ratio to the wheels, thusly tire size is also going to change this dynamic.

So general rule of thumb would be

Larger gear, slower acceleration but higher top speed
Smaller gear. faster acceleration but lower top speed

Also and this is going to be really dumb but which is larger (physically) 4.44 or 4.77

-_- just.gimme.my.ticket

those numbers you posted say the s2 trans gets slightly better accel in 4th and 6th gear but in a 1st to 3rd gear race the s1 would be faster yes but on the track when your more in 4th gear and higher the s2 would be moving faster. and in a top speed race youd get a different result. (its all situational)

bigger wheels wont cover more ground if this is your logic because the added weight would only counter act your efforts+tire size comes in to consideration with or without custom gearing.
its like lowering your car, change something,then you have to redo every other setting to accomodate

the ratio 4.44 or 4.77 doesnt measure the gears physical size. its the amount of teeth on the gear that are measured. they could be the same physical size they could be different idk but iv never seen physical gear size measurment come into discussion, like ever.

imo i think the 4.77 gear compared to the 4.44 in the same car in the same diff with everything else the same will be slightly larger in size but idk ask a raceteam that one

Carbon8

iTrader: (4)

Little reasearch and a little math later and I have some results

S1 Dif S1 trans; 16.6944, 10.07436, 7.326, 5.27028, 4.44, 3.74292
S1 Diff S2 Trans; 16.9386, 10.7802. 7.2816, 5.22588, 4.44, 3.69408
S2 Diff S1 Trans; 17.9352, 10.82313, 7.8705, 5.66199, 4.77, 4.02111
S2 Diff S2 Trans; 18.19755, 10.7802, 7.8228, 5.61429, 4.77, 3.96864

Top Speed@8500
S1 Dif S1 trans; 39, 65, 89, 124, 147, 175
S1 Diff S2 Trans; 39, 61, 90, 125, 147, 177
S2 Diff S1 Trans; 37, 61, 83, 116, 137, 163
S2 Diff S2 Trans; 36, 61, 84 ,117, 137, 165

Synapsis

S2 setup will provide better acceleration with a lower top speed.
S1 Setup will achieve slower acceleration but a higher top speed

It seems the best setup would actually be a S1 Trans and S2 diff, but considering the S1 trans is garbage compared to the S2 It seems that and S1 diff w/ a S2 Trans is the best all around setup, wish first gear had a little more output torque though.

Side note, if you are looking to enter the 200MPH club it is theoretically possible with a 3.9 diff(Mazmart sells) using either an S1 or S2 trans.

1STPLTRX-8

whats a website thats most recommended to buy tires from bc i know im going to need some pretty soon since i do alot of back and forth traveling from north carolina to maryland

wcs

iTrader: (2)

tirerack.com