chrism

im not telling

xenon

I totally agree with "mysql"

Everything he said makes perfect sense.

zoom44

yes and no

mysql101

As long as we don't start calling each other names, this can be a logical and meaningful discussion

The TC vs SC issue has been beaten to death, at least it has for me, so I'm not going to get into that much. I still say what works for me, might not work for you - and if you're happy with it, that's what matters. You are right about my reply though - I don't think the trucks are indicative on what you should expect with the RX-8. With a TC system, the turbo is the only thing moving, and really the only thing you have to take care of... kinda like our relationship with the rotary engine Not much to break, but if it does, there's nothing to do besides yanking it out. But this means no belts and other moving parts to worry about like you have with a SC.

What I can say is that my issues with going turbo have resulted from ignition coils dying on me (30k of use), and issues with fuel management. Once the coils were replaced, and the fuel management was tuned, it's been pretty amazing since.

I'm sure any issues you have will be taken care of in due time - it's always a bitter sweet mixed blessing to be among the first for a FI kit. I'd be among the first to curse at greddy if I had bought it 2+ years ago without the information we now have.

tajabaho1

possibly the cheapest bang to hp out there

Phil's 8

iTrader: (3)

I did not know for sure where you were coming from. It would never get to name calling. As you said "what ever works for me". I agree trucks are a poor comparison to the 8 but ya work with what ya got and I was only pointing out the experiences I have with turbos. I prefer the s/c over the turbo but am not so close minded that I think it's the only way to go. In a ***** out race for HP the turbo would likely win but my wish was to be quicker off the line and I am delivering boost long before a turbos 3000 rpm. Your correct with the extra moving parts (belt & pulley) and they do fail upon occasion (not as yet on my 8). I've had this same conversation with MM. I'll stay with the s/c.

mysql101

hehe. I would not be so foolish to think I could convince you otherwise. The only person who could be convinced, would be one who had not done prior research

mdw1000

So since you guys are discussing - let me throw this out there...

I have a 4AT like Phil. In your opinion, what would be a better option for power from 2.5K on up to 7.5K for the 4AT - the Pettit SC, or a turbo? I'm not real concerned about more power way down low, although it would be nice to have some more available. My 4.77 gear takes care of me around town for the most part, so I'd be willing to not have huge power gains off the line. Where I'm interested in getting some help is with passing, both on the street (2 lane country road all the way up to 6 or 8 lane highway) and on the straightaways on a road course.

In reality, my two main concerns are reliability and heat (lack thereof). I think either one will probably give me what I need power-wise, as I'm not looking to have some sort of monster.

I realize there is no right answer to this question, and some of it has been discussed to death. I'm just looking for some opinions and your reasons for them for my specific application.

I should also say that I plan on waiting for a reflash tool, either Pettit or Cobb. And of course I have to wait for that silly thing called money

Phil's 8

iTrader: (3)

Mark:
If $ are your main obstacle to obtaining FI then I think that you could get into a turbo with less expense than the s/c. You need to PM 09Factor about the reliability and performance of the turbo in an a/t.

I had a specific list of things I wanted and my investigations showed that my best chance of meeting them was the s/c. Expense did not really enter into the equation.

This whole scenario has been beaten to death and into the ground with discussion and it comes down to personal and financial preferences.

I wish you luck ether way you go - Since we've talked about this extensivly I will be very interested in the direction you proceed and why.

I think that you will find that the Pettit flash is similar to RB in that you will send in your emanage. If the Cobb flash tool ever happens it will be a tool like used for the Subiees

Phil

chetrickerman

read my little sentence under my name, you will figure it out

Keef

so... your gay?

chetrickerman

WWWHAT?!

wcs

iTrader: (2)

LOL Me either

tajabaho1

you don't have to, obviously you're sig says everything

chetrickerman

no one is forcing him

mdw1000

Well, if it becomes available money most likely won't be the issue. If I have the resources I will likely have enough to do either one. Basically I want reliable low boost power. I'm thinking like 5 or 6 psi at the most, based on Bell's turbo book (he says any factory motor in good condition should be able to take 5psi without problems, so I figure that's a good reference point). And there seems to be so many opinions posted when I do searches, but not tons of facts.

I guess a more specific question would be this - would the Pettit SC or a turbo put less heat into the engine at 5psi? I realize heat levels may vary from one turbo setup to another, but in general is the turbo going to give you higher temps?

mdw1000

Plus a lot of the discussion on the pettit kit disappeared with the thread that was killed.

chetrickerman

i dont know about the heat question, but i have heard from mostly everyone i talk about FI, that you can safely run up to 9 psi in a stock engine, but the rotary may be different because it already has a decently high compression ratio.

vIce^gRip

I have the Pettit s/c and am bias too!
I had the by-pass valve come apart the other day on the dyno but repaired it with super glue and drove 300 miles back home without issue.

Phil's 8

iTrader: (3)

A lot of what disappeared was just stuff that pertained to items that has only to do with the very early models and their installation. All of what pertains to the actual s/c survived those deletions. The missing parts, the tunes that would not work properly, the accusations and the incomplete instructions are just memories. What's left is a viable working kit. You just think you lost some important information. Similar things went on with turbos in their trial days. What went on early in the game is history now you just need to concentrate on what works for you.

mdw1000

I just meant it seemed like a lot of searchable posts went away. But I agree a lot of posts didn't have good info in them.

ricky356

trucks and cars are quite different. specialy when trucks are used for tq. im not saying that cars arent but were not pulling trees out of the ground....at least im not. if you base your descision on your trucks to make the descision on your 8 your going to end up unhappy.

you can turn the turbo down to lessen wear on the engine. the sc will continuously cause damage. look at turbo cars and sc cars straight from the factory. sure turbos need maitnance but a super charger will end the life of your engine much sooner. besides i have my hood up everyweek anyway ....i like whats under there

R.

ricky356

wow phil thanks for deleting your post and making it look like im talking out of my ***.

if you just read my post ....phil was trying to justify that sc are better on the 8 because he has alot of trucks at work. some turboed some sc'ed and the ones with a sc dont break down as much. so i said what i said above.

R.

MazdaManiac

iTrader: (3)

Ask and ye shall receive:



However, I am going to go with mysql101's initial response: yes.

Phil's 8

iTrader: (3)

Your a little off on the fact that there is big difference between cars and trucks. Now there is a big difference between trucks and rotaries. I have heard the argument many times before that there is some huge difference between cars and trucks - both were designed to carry a load be it people or just things. Yes the differences are there as most trucks have special transmissions, beefed up suspension and extra cooling so as to pull larger loads. I did admit, in my posting, that this comparson was not the best, but it is what shaped my decission.

You begin talking out of your *** at this point by saying that a s/c will damage or end the life of your car sooner. Now I'm no expert by any means but I have been advised by what I consider the best and no where was that argument used. I do think that you have no substituting data for that statement.

You accuse me of deleting a posting - I think you need look again as I never deleted any posting from this thread. Nothing I said would have caused a mod to delete any of my postings, so I again say you are talking out of your ***.

I have a deep respect for others decisions and expect the same for mine and I will defend my decision even if someone like you challenges it. You should just post your feelings and not attack someone elses.

I think that going over the bs again and again has not real purpose but if you want to start another thread discussing the different FI possibilities then go ahead and start it.

I just did delete a post - I decided it was too argumentative to post and replace it with this posting.