Here are my dyno results with the GReddy Turbo and Interceptor X EMS. This was done on a mustang dyno, using relatively concervative AFR. We had to pull a lot of timing because of the horrible gas we have in CA. These numbers were done at about 9.5psi after the car had cooled down. The final tune gave 225whp, and was done at 11-11.5psi. If we had let the car cool down, I think we could have gotten another 10-15whp out of it. I am running the RB exhaust, and RP high flow cat.

wonder how much extra you can get out with the turboxs exhaust, should be a lot less restrictive compared to rb.

I'd like to hear it on a turbo'd car. NA is LOUD!

That's good numbers on a mustang gyno

Nice, Moostafa. How is the drivability with the Interceptor now that you have it tuned? Also, it looks pretty heavily smoothed. I'd be interested in seeing some Interceptor AFR data a little less smoothed. Got any? If not, got any impressions you could share?

Thanks,
MD

Also, it looks pretty heavily smoothed.Any smoothing is done by the dyno software. What you see is straight from there.
________
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I'm interested in drivability too. :)

Any smoothing is done by the dyno software. What you see is straight from there.

Umm...Yeah...okay....

You can also change the smoothing parameters and get un-, or less-smoothed data if you so choose. I'm asking him if he has any of that...

Single exhaust on the turbo have shown up to 10 lb.-ft. of torque.... "or so I've heard :naughty: "

That's good numbers on a mustang gyno

Thats what I was going to say, I believe mustang dyno's are always a bit lower in their readings compared to a dynojet.

Mike, does it feel like it loses power after 7K RPM? I'm curious how a Greddy RX-8 would respond with the VDI disabled.

EDIT: Hey I just realized you dynoed at FFTEC. That's where I had my last dyno at 188 HP.

Mike, does it feel like it loses power after 7K RPM? I'm curious how a Greddy RX-8 would respond with the VDI disabled.

EDIT: Hey I just realized you dynoed at FFTEC. That's where I had my last dyno at 188 HP.
You made some REALLY nice numbers from your dyno. I think that mine suffered from having to back off the timing to such a large extend. Without doing so, I was pinging everytime I'd go WOT. As far as the power, I honestly can't really tell there is a loss of power after 7k. Perhaps after I get used to driving it I will, but right now, I'm struggling not to hit fuel cut off, because you get to redline so quickly.
Nice, Moostafa. How is the drivability with the Interceptor now that you have it tuned? Also, it looks pretty heavily smoothed. I'd be interested in seeing some Interceptor AFR data a little less smoothed. Got any? If not, got any impressions you could share?

Thanks,
MD
Drivablity is fantastic. It really feels like the car came straight from Mazda like this. Only thing I don't particularly care for is the white smoke out the tailpipe all the time, but I know that can be resolved. I could try to get the original dyno curve from FFTEC this weekend if I can find the time, to compare those numbers to an unsmoothed AFR.

I was thinking about getting that mod to the interceptor to monitor my AFR, so that I can fine tune them slightly leaner. Should be able to pick up a little more power there too.

Nice numbers, the FFTEC guys are pretty cool!


Xyntax, what have you done to your car to pull 188 on a mustang? I know we've had this convo before, but i dont remember :(

Whats up with the headers? I want to see what you can get with those, and tuning.
Yeah, the guys there at FFTEC are hella cool. I do have to double check my receipt though...

I only have REVi intake/CAI, hot plugs, and CZ street-tuned map after reflashed with "R". The headers are sitting in my room. Any idea where and when we could get an install session? I know there's gonna be some guessing since it's the first time for most of us. We might need a lift due to the tight room in the header area. Did you install your turbo on just jacks?

This is Moostafa's thread, so let's not get off topic. Your AFR is just about right to get good reliable power, but how far did you pull timing? How was your timing map setup, did you mimic the stock setup? You know, gradual rise up to 6K and then it stays at 30 all the way. Does the I-X enable you to control timing split?

BTW, I was informed that the VDI stays off for the I-X. Nice :)

"Does the I-X enable you to control timing split?"
Yes it does control split, it also retards the timing as boost pressure comes up.

"BTW, I was informed that the VDI stays off for the I-X. Nice"
Actually it is user definable, so is the SSV. In Mikes case the rev cut is @ 9250 and the VDI opens at 9500. (get it?)Scott

^ Got it. Thanks!

Single exhaust on the turbo have shown up to 10 lb.-ft. of torque.... "or so I've heard :naughty: "

HAHA :Eyecrazy:

Single exhaust on the turbo have shown up to 10 lb.-ft. of torque.... "or so I've heard :naughty: "
Spill it already ;)

Thats what I was going to say, I believe mustang dyno's are always a bit lower in their readings compared to a dynojet.Significantly Lower

Only thing I don't particularly care for is the white smoke out the tailpipe all the time, but I know that can be resolved.WHAT???

I only have REVi intake/CAI, hot plugs, and CZ street-tuned map after reflashed with "R". The headers are sitting in my room. Any idea where and when we could get an install session? I know there's gonna be some guessing since it's the first time for most of us. We might need a lift due to the tight room in the header area. Did you install your turbo on just jacks?

This is Moostafa's thread, so let's not get off topic. Your AFR is just about right to get good reliable power, but how far did you pull timing? How was your timing map setup, did you mimic the stock setup? You know, gradual rise up to 6K and then it stays at 30 all the way. Does the I-X enable you to control timing split?

BTW, I was informed that the VDI stays off for the I-X. Nice :)
Sorry to go off topic again (in my own thread!), but if putting on the headers is anything like putting on the exhaust manifold on the turbo installation, then it should only take 2-3 hours. The only thing I used were jackstands, a jack, and a brick. I'd like to take a look at it first, so I know what we are dealing with. I'd be down to do it in my driveway.

As far as tuning, I have really limited knowledge about that sort of thing, but am trying to learn here and there. I wouldn't dare tune my own car right now, so Sean at FFTEC did all the tuning, and consulting with Scott.

^ Cool. If the weather permits, maybe we could do this install this month. As for tuning, I wouldn't tune my own either if my engine is boosted. This is one of the reasons why I'm trying to experiment with my car while it is still in N/A form. Once I hit the ceiling for N/A, that's when I go FI, and then it's another chapter of learning from there.

ugh... smrx8 on the boards got 216whp N/A with tunning w/ the RIC Shaw ECU

With 55shot nitrous he got 243whp and that was on a mustang dyno. :cwm27:

ugh... smrx8 on the boards got 216whp N/A with tunning w/ the RIC Shaw ECU

With 55shot nitrous he got 243whp and that was on a mustang dyno. :cwm27:


yea that was smrx8 car, how much is your 8 pulling btw? don't throw stones if you live in a glass house... :nono:

besides like mentioned above this is with 91 octane didn't smrx8 dyno with 93 gas?

Ca 91 gas = 89 other states = why we had to pull so much timing

ugh... smrx8 on the boards got 216whp N/A with tunning w/ the RIC Shaw ECU

With 55shot nitrous he got 243whp and that was on a mustang dyno. :cwm27:


And Renwar1 on the boards got 206whp STOCK...what's your point?

:)

^ Cool. If the weather permits, maybe we could do this install this month. As for tuning, I wouldn't tune my own either if my engine is boosted. This is one of the reasons why I'm trying to experiment with my car while it is still in N/A form. Once I hit the ceiling for N/A, that's when I go FI, and then it's another chapter of learning from there.
Unless your FI is a supercharger in the future, i suggest against this. your gonna waste alot of money buying NA mods and then chunking them if you drop a turbo in.

I know what you mean, but its only a couple hundred bucks. Plus he can still sell it later on. I think there were quite a few people with the racing beat revi that sold it for the aem intake, or turbo.

Single exhaust on the turbo have shown up to 10 lb.-ft. of torque.... "or so I've heard :naughty: "

by adding a center exit single 3" exhaust (comes out the rotary emblem in the back, the tip is rotor shaped for added coolness)/rp midpipe and tuning I managed to go from 218 whp to 270

has two resonators on it and the muffler, so it sounds nice.

Anyone else have anything to update?

Anyone else have anything to update?
Well...as far as gas mileage, I'm starting to notice that there isn't much of a change after having turbo. When I first got it, my foot was a little heavy, so my mileage sucked. I just got home from a road trip, and I actually got better mileage after putting the turbo on, than I did when it was n/a. Before I got to 264, and ran out of gas. This time I hit 252, and the light had just come on. Again, overall I'm very happy.

damn... lately I get about 175 out of a tank around town...

Are you hitting full boost every time you accelerate?

Here are my dyno results with the GReddy Turbo and Interceptor X EMS. This was done on a mustang dyno, using relatively concervative AFR. We had to pull a lot of timing because of the horrible gas we have in CA. These numbers were done at about 9.5psi after the car had cooled down. The final tune gave 225whp, and was done at 11-11.5psi. If we had let the car cool down, I think we could have gotten another 10-15whp out of it. I am running the RB exhaust, and RP high flow cat.



I think you need alot more tuning i going back and fourth in my mind to see if i should go turbo but when i see numbers like this it dissapoint me.I think you should be over 250 with no problems .

It is on a Mustang dyno with a conservative tune though. Somethings gotta be holding it back when some 8's can make 290hp with 10psi and a stock cat.

I think you need alot more tuning i going back and fourth in my mind to see if i should go turbo but when i see numbers like this it dissapoint me.I think you should be over 250 with no problems .
Keep in mind this was done on a mustang dyno, so this is more like 270whp on a dynojet. This particular run was at 9-10psi, I used 91 octane CA gas (which is about 89 in all other states) my timing had to be retarded quite a bit, my tuning was very conservative (look at my AFR curve), and all my runs were done in 3rd gear. So not to be too rude, but no, I don't need a lot of extra tuning. You need to pay more attention to the facts that have been clearly stated throughout the thread. :spank:

shit still i made 243 with only a 50 shot and some bolt ons Im thinking of buying the greddy kit from a member here that selling it but something keeps pulling me back from doing it .like rkostolni said i think something holding you back have you contacted scott for help ???

moostafa was the greddy kit worth it or would you say to wait for a better kit to come out ??

moostafa was the greddy kit worth it or would you say to wait for a better kit to come out ??
I honestly have no regrets whatsoever. Not only is the power difference night and day, but the torque is neck snapping. If you can find a used kit, then there is no question in my mind that you won't regret picking it up. Perhaps you should try to find someone in your area that has a turbo, and ask for a ride, or even to drive it. Then compare that to your car with nitrous.

If you are looking at my numbers to justify buying it, just remember all the variables. A lot of people don't realize just how bad the gas over here is until they experience it. I didn't even know until a few weeks ago. You should be fine since you are on the other side of the country. So you should expect what others on the east coast are getting, (280-290whp).

shit still i made 243 with only a 50 shot and some bolt ons Im thinking of buying the greddy kit from a member here that selling it but something keeps pulling me back from doing it .like rkostolni said i think something holding you back have you contacted scott for help ???
Were your numbers on a dynojet or mustang dyno. If mustang, what were your numbers without the nitrous?

During the tuning, we consulted with Scott for help. Both our tuner and Scott were amazed how much timing had to be pulled because of ping under boost, due to our gas. I do plan on leaning the AFR out a little in a few months after I buy a wideband sensor, but my tuner wanted to be conservative, because he had never worked with the renesis before.

Where is East Bay?

Its not a town, but an area. Specifically the Bay Area, but I live in the part known as the East Bay.

Damn, why can't anyone around LA have a turbo.

I met a guy at SevenStock8 with a Shinka that was turbo'd. I don't remember his name, but he said that he doesn't really post. Isn't Fanman in that area?

I honestly have no regrets whatsoever. Not only is the power difference night and day, but the torque is neck snapping. If you can find a used kit, then there is no question in my mind that you won't regret picking it up. Perhaps you should try to find someone in your area that has a turbo, and ask for a ride, or even to drive it. Then compare that to your car with nitrous.

If you are looking at my numbers to justify buying it, just remember all the variables. A lot of people don't realize just how bad the gas over here is until they experience it. I didn't even know until a few weeks ago. You should be fine since you are on the other side of the country. So you should expect what others on the east coast are getting, (280-290whp).


Were your numbers on a dynojet or mustang dyno. If mustang, what were your numbers without the nitrous?



My car dynoed 213 and 243 with nitrous and this was done on a mustang dyno.thanks for the feedback i just dont want to make a mistake and have a car thats not realiable.

You can always take it off and resell it if you don't like it or don't think its worth it. If you buy a used kit to start with you shouldn't loose much. If you get it tuned though I very much doubt you will regret it.

I've heard there's better gas (not av-gas) available somewhere in Hayward or Fremont. Something like 95 or 96 octane.

I'll do a post on the WestCoast forum.

There is a place in San Jose with 100 octane gas. But I really don't feel like going all the way out there everytime I need gas, and also paying that kind of money per gallon.

Try xylene from the hardware or paint store. There used to be a thread 'round here somewhere about it. You can usually buy it in multiple quantities, even by the 55gallon drum. Just mix with your gas to the desired octane, it should be significantly cheaper than 100octane from a station.

My car dynoed 213 and 243 with nitrous and this was done on a mustang dyno.thanks for the feedback i just dont want to make a mistake and have a car thats not realiable.

I'm absolutely floored by those results. I have seen far more NA RX8's dyno in the 150-160 whp range. Never, never seen an RX8 dyno like this, even on a regular dynojet. You must have one of those freakish cars. Even with the full exhaust package (cat back & midpipe), intake, & CZ I have seen RX8's pull about 180's on a Mustang. Moostafa's dynos are right in line with what i would expect on a Mustang dyno.