313whp GT35R
 

I had Scott at Mazsport dynojet the car today. This is Manuel's (RX8PR) GT35R kit that he sold to fund his 3-rotor project. It's running Mazsport's upgraded fuel injectors and pump, Bosch HEC 715 coil packs, and the Interceptor. The gutted cat, stock exhaust, and makeshift intake held us back from making really big power. We must have made 20 pulls and called it a day once we went over 300whp. The last picture is from the night I installed the kit and things aren't so messy anymore.

On a side note, I was really impressed how Mazsport's fan mod kept temperatures at bay.

http://img.photobucket.com/albums/v6...Peter10psi.jpg


http://img.photobucket.com/albums/v6...install004.jpg

NIce numbers, I like the torque curve!

How much boost are you running?
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AVANDIA WITHDRAW

10 pounds. Manuel hit 327 @ 11.5# with a 3" exhaust, so I think we're on track.

nice! what kind of fuel were you rumming? what were the afr's at? how much timming? how many lbs of boost?

curve looks good, but ive noticed that all turbo renesis dynos put out about the same amount of torque. what will it take to see 280+ ft/lbs of torque our af a turboed renesis?

Running 93 octane and I'm pretty sure all the boosted AFRs were in the low 11s. Timing is still pretty conservative, but I'd have to log onto the car to give you some real numbers.

Nice numbers....I like the oil catch can :D:

LoL is that what I think it is?
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Cheap Glass Bongs

^^^Yes. We were out of Guiness. Seriously, though; that's just one of the many small things that have been cleaned up. I now have a proper oil catch can.

Does anyone have any time slips after having this turbo installed or has it not been long enough yet?

I'd like everyone to know that the turbo he is running isn't even hitting it's efficiency zone yet. It's got tons left in it if they decide to really turn it up. Can the engine handle it is a different questions altogether.

I noticed you had no strut bar, is that because it won't fit or did you take it off just for the install?

The strut bar was removed only during installation. It fits fine!

RG: you're right. Right now the intake is sucking in air directly from the radiator. Assuming that the intake air is around 185*, it looks like I'll exceed the efficiency graph at 10# if I can lower the charge temp a few degrees. The turbo should really start to take off at 14-15#. We installed 2mm apex seals since Scott says they'll be stronger but I'm still a little gun shy.


I should give a big "thanks!" out to Manuel. He did a great job supporting me and working though our language barriers.

Why is the MAF sensor connected ?Doesnt the Microtech run the Air fuel and ignition directly?
air intake temps perhaps?

^^^I don't have a good reason for that. The car will run without it, but it starts to behave stangely. I asked Mazsport the same thing and the simple answer is just keep it there. I think the computer still uses it for temperature and may even have something to do with the throttle body.

as rotarygod say's he can get a lot more from this GT35R.....................
but take it step by step.

I'm glad that you had installed the kit on your car!

http://www.rotorespr.net/forum/image...bandera_PR.gif the're is some work from my country on this car.

next step, 3" pipe?

Manuel

i'm willing to bet the engine can handle it just fine...it's the octane that's in question. piss some alky in there and see what's up.

3" pipe is definitely in the cards. Scott and I talked about methanol but if I went that route I'd probably engage it like nitrous: a switch that engages the methanol system and a methanol map. Of course, I still have a nitrous kit lying around from the Miata.

i think he is right... engine should be good for about 400 but tunning and the bad gas might kill it before gettign there...

i am interested in this also... torque is what gets you moving ... i think... also how terrible is gas mileage on turboed 8's?

or how about you run your 8-10 psi daily, and set the meth to turn on at say 11 or 12 psi... then you don't have to fuck around with extra maps and switches.

During normal driving, his fuel economy should be just about where it was before the turbo. When he gets into boost, however, to have some fun - all bets are off. :)

Because if I'm out of Meth then I don't want to accidently boost that high.

Are you still talking about CARS?? :D

You just run a boost controller. Low boost levels never get you into the Methanol injection range but high boost does. You have a sensor on the methanol tank telling you level. It's like a fuel tank. You just listen to what the gauge tells you. It takes a while to go through it anyways as you'd only be at full power at higher boost levels before it started to kick in. Once the low level warning comes on, run only low boost. The only way it can do harm is if you ignore it.

^^^That's exactly the chance I don't want to take. What if my wife is driving the car? I need to make this car as fool-proof as possible.

I found your 500hp methanol thread super-interesting, but there are many more projects I need to complete before I do something like that.

That's why she doesn't get to know where the high boost/low boost button is!

I must have misunderstood what you were saying. I'll have to study the owner's manual for the boost controller. Greddy Profec B II.

I've used the Greddy Profec-B. It's one of only 2 Greddy prodcuts I will actually use. There is a button you push that switches between your high boost and low boost settings.

I believe the MAF has the IAT sensor on there too, and that's a useful sensor.

And Pete, you didn't go with 3mm seals? Either way you still should be good for awhile, you've got plenty of fuel capacity. I'm gonna have my car down there on the dyno in a few weeks for my tune, not expecting anything too crazy but you might want to check it out.

nice job on the turbo, get it to the track I'm interested to see what times these turbo'd 8's run.

yeah i run the profec-b and it's really simple to set up and just like rotarygod said there's a high and low so set what 2 settings you want and from then on all you need is to decide when to push that button to get you into high boost. Now if you really want to spend some $$ and get a great boost controller get the e-01, you wont even need a boost guage if you have that thing.

Here's a link to a dyno from an RX-7 running the GT35R. 427 rwhp at 1 bar. Look at the torque.

http://www.rx7club.com/showthread.php?t=593681

Nice gains up top, but the power/torque really don't start to happen until north of 5k RPMs.

Do you think the turbo has to be this big/laggy to get the necessary flow up top?

I'll have to check that. I know we machined the rotors but the invoice said 2mm. I just emailed Scott so we'll have to wait for his response.

Sap: The car isn't that laggy. Well, it is if you drive it like an Accord, but then so is a stock Renesis below 5000rpm. On that note, I'm making more power at 5300rpm than stock. The run was done in 3rd gear so 30mph~3000rpm, etc. I haven't had a chance to play with the car a whole lot, but it looks like it starts to build boost beginning at 2800rpm. I don't yet know when it hits 10#.

I run a profec-b spec II, and to be honest I'm not all that thrilled with it. Interface quirks aside, and it's probably more the turbo's fault, it's slow to react when I'm off the gas in gear and then floor it.

anyone with the greddy kit care to post their profec b II settings? I don't think I've ever found any on here.

and that FD would be sick fast if it could hold that tq to a 9000rpm redline!

Local SRRT4 owners use the GT35R to get into the 600whp club at around 20psi! GT35R is a great turbo if you plan on really pushing the boost. I've always wondered about the lag.

I can relate this story of note. I raced an SRT4 with a GT35R one time (although I didn't have a clue as to this 'upgrade' until after I been whipped like an egg white). From a roll, the T618Z boost comes on a lot sooner than the GT35R. I pulled about half a car on the SRT4 until that monster spooled-up. At that point he left me like I was sitting still.

i know smc has a meth system that actually adjusts its spray per lbs of boost to ensure protection throughout the whole rpm range.... also if you use the meth as an additive to keep the temps and what not down it will make boost a lot safer... if you use it as part of octane boost, accoutn for it as an actual alternative for fuel, then you can run into trouble if your woman runs the car with out the tank full... nice numbers and i would deff go for the insurance of meth injection

i look foward to the dyno charts in the near future

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