Blown motor greddy turbo kit
 

Blew my motor. Was running the greddy turbo kit with Agency power cat-back tuned at 9 psi making 293 whp. Made 256 at 5 psi. No driveability problems what so ever after the tune was turn key daily driver running emanage ultimate. Suspect the emanage lost the tuned map after key reset. Was romping it skating the rear when it let go shifting from 2nd to 3rd at 9500 rpm. Acually still runs but have little compression on the front rotor. Am a Audi tech by trait. Found 3 of the 4 spark plugs not working....lol. Replaced. So now car runs like crap like 60 seconds at wot to get to 60 but no check engine light anymore..haha. I just though i would tell my story kinda sucs. Im going to sell the turbo kit(only 3200 mi) get a used dropout and port it already have re headers and ap midpipe. Prob get a Rb intake and just run it like that 220-250 whp. May also run a shot. What do you think?

Sounds like you should have replaced your ignition coils.:(

sucks to hear that...those where some respectable numbers my recommendation is still run the turbo kit on the next motor with a different engine management such as interceptor or cobb ap @ 5psi

I think it's unlikely you made 293 whp on 9 psi with the greddy turbo. You would usually need in the neighborhood of 12 psi on the greddy for that.

Where was the pressure measured from?

Coils check ok plugs were bad open on center electrode lol knocked out 3 of the 4 plugs it detonated bad

i did that turbo wont run 12 psi lol well itll spike. The cars on meth it needs it but it make 293 on 9.x psi its dyno # its all relative (basically dont mean anything so who cares)

Pessure on dyno greddy sensor was i think .03 higher or something like that so mabe like 10 psi

Its either going na or alot higher than 293 whp that was numbers on the first and only tune

OK, if you have meth and other stuff, then it might be possible, but out of the box the greddy kit makes maybe 230 whp. 9 psi usually makes in the neighborhood of 270 whp. You can go to around 12 psi, and that will make around 280-290. If you measure the pressure at the turbo, it will read high. Reading it at the intake manifold will give you a lower number, but it's more accurate on what your engine is getting.

Spiking isn't an issue, you just need to configure the boost controller. The issue is the greddy turbo is crap, and wears out after 12k miles most of the time. Also it can't feed the engine enough air over 7k rpm. Look at getting the MM turbo upgrade as the charge temps are cooler, so it's safer to run.

yea running stage 2 snow meth and a catback and geddy kit car is bone stock other than that and has stock cat/midpipe. I run a hallman manual bc anything over 9 itll spike and settle just the nature of the turbo wastegate exaust flow. 293 whp is respecatable with the greddy kit and it blew the motor most likey cause greddy emange sucs lol.

If the car stays turbo. Ill run the greddy kit with a gt3076r (manifold,downpipe custom w/ external wastegate) Also different fuel pump, injectors more meth and different management not AP...haha)

Yeah, no sense in doing things the right way this time around.

ok whatever not tunable to me is no good have fun with ur mail flash

seems to me he is thinking about it correctly

There hasn't been a single person with a blown engine from the AP. I don't think anyone has even reported detonation.

Meanwhile you're like the 9 billionth blown from using the emanage.

Are you going to qualify that with something, or just inject random statements? :)

ok well thats how everyones doing it i dont want to argue rx8 owners r usaually down what do u drive a mustang rx8

whats the point of the.. do it my way or the wrong way mentality?

0 blown engines that you know of on a tool that's been out for 5 months is not saying much.

Behind the tool is still a tuner (granted MM is a very knowledgeable and experienced one at that), doesn't mean no one else should try their hand at tuning...

The AP is really that much better than anything else available for the RX-8.

There is only one justification for not using the AP at this point in time, and that is if you have a blow through setup that the AP cannot yet handle due to the MAF sensor. AFAIK there's only one turbo kit that does that.


We had blown engines with the greddy well within this timeframe. The install base of the AP is not minor. the cost of entry is so low and it's use is so widespread, it is not as insignificant as you make it sound.


I don't say this out of the blue for no reason. I've used just about all the piggybacks available for the RX-8. The AP is the proper choice, hands down, no question.

I believe the second justification as Gturbo8 has mentioned is if you want to tune it yourself...

Yes and no. ;)

But I know what you mean.

The street tune software should be out within a month.

I waited 3 years for the AP to come out. Him waiting a month isn't a big deal since he still has to replace his engine. But then again, I'm trying to explain common sense stuff to a guy who's biggest mod is a radar detector, and another guy who blows his engine up and wants to do it again.

:banghead:

When that comes out, I would be right there with you.

I'm not saying AP is not the most flexible, robust tool on the market today, I agree with you on this. In fact, my AP is in the mail and will be here in a few days. However, as of now, it can't be tuned which is one of OP's requirements.

And FYI, I like my radar detector mod! Plus I've only had the car for a few months, I'll take my time with turbo and such.

haha. I'm just playing. I don't want to come off as too much of an asshole, but I am speaking from experience with the piggybacks. Until the AccessPort, we literally were scraping the bottom of the barrel because each system available had major drawbacks and no alternatives regardless of price.

u say some stuff comes off offensive even if your joking kinda not funny lol......If Ap the best well ill go with it. im not trying to blow another motor this mistake cost me 3k and im doing labor myelf so.....Turbos fun and all but this motor is nice NA with the right mods and port may be really nice and then a shot on top to leave a turbo 8 in the dust.

Really? Well, I probably wont be able to tune it myself for a while. but thats a great news indeed ...

hmm ... I need to give an PM to MM :)

NOS FTL lol. I agree the cobb AP is a very nice tool. Hope you atleast consider it man. Also im sorry about your motor , hope you get it fixed soon. Were you running on the stock turbos on the greddy?

porting doesn't do much for the rx8 engine. Intakes are already huge, and exhaust can't be changed much.

NOS... well, it is cheap and will give you a lot of power compared to bolt-ons, but I don't favor that either. It gets expensive if you use it constantly, plus you have to take the time to fill it up. Not only that, but it's a set pressure. It's more or less kinda like the stock greddy turbo. That 7 psi worked nicely for a while, but as you go to 6, 7, 8k rpm, it's not looking so hot anymore, it levels off. Isn't this true? I don't have any NOS background, so someone correct me if I'm off.