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- 92 & 16 Meyatas
wow, that is sick! love the build!!
Project RX7 Race car - Progress so far!
- Thread starter Jenn
- Start date
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- '13 CWP MS3 & '16 Mazda6 GT
jenn....are you running elec fans im guessing?
RPM Motorsports
Member
Well a little dissapointing, but with some very good reasons.
First off, we dyno'ed the car with 19" rims on it....probably not the greatest thing to find out the WHP.
Second, the carb needs to be jetted...badly. It pulled pretty hard right up to about 6500-7000 rpm then the carb ran rich and fell right on its face.
We ran it for about 3/4 hour at various rpms under load on the dyno then tried a couple power runs just for fun.
Here is what we came up with:
Basically the carb gives out right when the engine starts to make power and it looks like the HP line is starting to go north. It then hits a rich spot, dips down then bounces back for another burst of power, then dies again.
So if we had some jets for the carb and were able to dial it in all the way to 9500rpm, I'd say it will make some pretty decent power.
First off, we dyno'ed the car with 19" rims on it....probably not the greatest thing to find out the WHP.
Second, the carb needs to be jetted...badly. It pulled pretty hard right up to about 6500-7000 rpm then the carb ran rich and fell right on its face.
We ran it for about 3/4 hour at various rpms under load on the dyno then tried a couple power runs just for fun.
Here is what we came up with:
Basically the carb gives out right when the engine starts to make power and it looks like the HP line is starting to go north. It then hits a rich spot, dips down then bounces back for another burst of power, then dies again.
So if we had some jets for the carb and were able to dial it in all the way to 9500rpm, I'd say it will make some pretty decent power.
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- '13 CWP MS3 & '16 Mazda6 GT
youchies...fix it fix it fix it! lol
then mail it to me
then mail it to me
Antoine
Administrator
Holy spinning doritos Jenn...You've lit up this thread with a ton of juicy pics and updates over the past week...Just awesome...I'm having a blast just catching up on the last few pages! (2thumbs)
Man...I can't wait to hear/see this baby scream at 9000+ rpm...Power delivery looks very progressive and smooth despite the carb/drop-off issue...Good luck with the final tune...Let's all hope for some real nice #s (drinks)
Man...I can't wait to hear/see this baby scream at 9000+ rpm...Power delivery looks very progressive and smooth despite the carb/drop-off issue...Good luck with the final tune...Let's all hope for some real nice #s (drinks)
Engine has arrived at the warehouse!!! (headbang) A bunch more packages coming today, and the header is at an exhaust shop having a second O2 bung welded onto it (our gauge package that is coming has dual o2/air fuel).
Hoping that the other box of goodies with the "fragile" stuff comes today so we can hook it all up this weekend.
Pictures to come tonight, stay tuned!
Hoping that the other box of goodies with the "fragile" stuff comes today so we can hook it all up this weekend.
Pictures to come tonight, stay tuned!
And the moment you've been waiting for...finally a video. 
http://www.youtube.com/watch?v=gRSI4KTDJLU
http://www.youtube.com/watch?v=gRSI4KTDJLU
It's been a long weekend. I am ACHING from all the bending, lifting and lugging.
On Friday night, we went and picked up our pallet. They put it on the truck with a forklift, and Dave and another RX7 friend of ours lifted it off the truck with the help of a set of ATV ramps. They lugged it into the garage (engine and tranny connected, thank goodness! I didn't want to connect them!), and we called it a night.
Bright and early Saturday morning we went looking for little bits that we were missing at local hardware and auto parts stores. We worked all afternoon (with a short lunch break) with the help of one of our pit crew and the same friend from Friday night. 7 or 8 hours. A hole was stripped in the tranny for one of the starter bolts, so they had to retap that, and there were a few other little kinks. Got the engine in place and bolted down and a little bit of the ignition done. We finally called it a night around 8:30 and went to Hooters (haha! Don't ask, they just opened yesterday here in our city for the first time). Our pit crew guy stayed over night.
We went back at it this morning. I did the engine electrical, fuel system (including carb disassembly to put in 46mm chokes and some bigger air jets), and I cleaned the engine bay up. The boys hooked up the oil cooler with the new RB lines, and the cooling system, and the exhaust (one of the studs was different and we don't have a nut for it, that's why the header leaks. Going to find a nut for it this week). Finally around 6:00pm, we fired it up and it came to life.
Now we need to find a nut for the header, finish a few small projects inside the car (battery box, cleaning, painting, some new roll cage padding), clean the outside of the car, install the actual rad we'll be using (it's coming on Tuesday), and get a few other odds and ends put on (throttle cable, shifter bushings, some nuts and bolts and an exhaust hanger), new gauges (hopefully next weekend), clean it up, and it will be ready for the car show. Then we have to do all of the fluids, and some last minute stuff (safety wiring, etc.) before it hits the track in May.
I also need to hook the Tach back up to the Trailing coil. I had it hooked to the output on the box, and it is all over the place. It's surprisingly more accurate on the coil.
On Friday night, we went and picked up our pallet. They put it on the truck with a forklift, and Dave and another RX7 friend of ours lifted it off the truck with the help of a set of ATV ramps. They lugged it into the garage (engine and tranny connected, thank goodness! I didn't want to connect them!), and we called it a night.
Bright and early Saturday morning we went looking for little bits that we were missing at local hardware and auto parts stores. We worked all afternoon (with a short lunch break) with the help of one of our pit crew and the same friend from Friday night. 7 or 8 hours. A hole was stripped in the tranny for one of the starter bolts, so they had to retap that, and there were a few other little kinks. Got the engine in place and bolted down and a little bit of the ignition done. We finally called it a night around 8:30 and went to Hooters (haha! Don't ask, they just opened yesterday here in our city for the first time). Our pit crew guy stayed over night.
We went back at it this morning. I did the engine electrical, fuel system (including carb disassembly to put in 46mm chokes and some bigger air jets), and I cleaned the engine bay up. The boys hooked up the oil cooler with the new RB lines, and the cooling system, and the exhaust (one of the studs was different and we don't have a nut for it, that's why the header leaks. Going to find a nut for it this week). Finally around 6:00pm, we fired it up and it came to life.
Now we need to find a nut for the header, finish a few small projects inside the car (battery box, cleaning, painting, some new roll cage padding), clean the outside of the car, install the actual rad we'll be using (it's coming on Tuesday), and get a few other odds and ends put on (throttle cable, shifter bushings, some nuts and bolts and an exhaust hanger), new gauges (hopefully next weekend), clean it up, and it will be ready for the car show. Then we have to do all of the fluids, and some last minute stuff (safety wiring, etc.) before it hits the track in May.
I also need to hook the Tach back up to the Trailing coil. I had it hooked to the output on the box, and it is all over the place. It's surprisingly more accurate on the coil.
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- 96 Miata M-Edition, 2015 Mazda 3 Hatch
holy sweet rotary goodness.
