RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   Rotary Drag Racing (https://www.rx7club.com/rotary-drag-racing-167/)
-   -   Time for wheelies! (https://www.rx7club.com/rotary-drag-racing-167/time-wheelies-789843/)

ultimatejay 05-17-09 10:05 PM

Ready to rock and roll! :rock:

http://i437.photobucket.com/albums/q...kitpics002.jpg

Shainiac 05-18-09 12:27 AM

Whats wrong, cant use the motor God gave ya to run your water pump?
I'd never thought about going that route, but it seems like a more cost effective way of getting the same results as a external pump.
Plus you can make up all kinds of stories to tell people who ask questions.

ultimatejay 05-18-09 02:36 PM


Originally Posted by Shainiac (Post 9217577)
Whats wrong, cant use the motor God gave ya to run your water pump?
I'd never thought about going that route, but it seems like a more cost effective way of getting the same results as a external pump.
Plus you can make up all kinds of stories to tell people who ask questions.

As you may know, a water pump at high rpm's can use as much as 20hp. Since that is my only powerband, it helps me out alot.

This is a Moroso kit for american muscle cars- cost- 90 bucks.

Cost for external electric pump, hoses, adaptors, etc- major bucks $$$$$.
The only benefit that the external electric pump has is saving a few pounds in weight as the cast iron waterpump and housing is pretty heavy.

The way that I went is definetly more cost effective in a big way.

Shainiac 05-18-09 09:07 PM

Any idea how many amps it draws? How'd you figure out what rpm/pulley diameters to use?
I think this would be a really cool setup, but I dont know how much I trust it on anything other than a drag car.
Kudos for thinking outside the box.

ultimatejay 05-18-09 09:18 PM


Originally Posted by Shainiac (Post 9219717)
Any idea how many amps it draws? How'd you figure out what rpm/pulley diameters to use?
I think this would be a really cool setup, but I dont know how much I trust it on anything other than a drag car.
Kudos for thinking outside the box.

You don't want to use this type of setup on the street. This is for drag racing use only. I forget the amp draw but the motor spins the water pump at 1500rpm's. Remember the slower the water passes through the radiator the more heat is pulled out. Also, don't give me credit for thinking about this as this has been used by drag racers for many many years. :)

ultimatejay 10-02-09 02:21 PM

Took my car to my local 8th mile track last night and I ran my best ever of 7.56 at 89mph with a 1.50 60ft. I carried the front wheels for a good distance. I beat 2 nova's and I was about 1/2 car length from beating a full tubbed mavrick with a big block. hehehe
Vids coming soon. :)

n0ferz 10-02-09 07:22 PM


Originally Posted by ultimatejay (Post 9536918)
Took my car to my local 8th mile track last night and I ran my best ever of 7.56 at 89mph with a 1.50 60ft. I carried the front wheels for a good distance. I beat 2 nova's and I was about 1/2 car length from beating a full tubbed mavrick with a big block. hehehe
Vids coming soon. :)

Good job Jay:icon_tup:, anxious to see those vids:)

Righty 10-02-09 09:27 PM


As you may know, a water pump at high rpm's can use as much as 20hp. Since that is my only powerband, it helps me out alot.
Converting force to power, losing energy to voltage drop, converting power back to force? Am I missing something? Isn't this the same thing as clutch vs Efan?

ultimatejay 10-02-09 09:51 PM


Originally Posted by Righty (Post 9537701)
Converting force to power, losing energy to voltage drop, converting power back to force? Am I missing something? Isn't this the same thing as clutch vs Efan?

I have a switch for my electric drive water pump. I turn off the water pump after my burnout and then make a pass, therefor my motor is only running the alternator and the waterpump is bypassed. After my pass, if needed I just hit the switch to turn the water pump back on. Get it now? I could eliminate the alternator as well, but then I would have to charge the battery all the time and I don't have the patience for that.:)

noferz- thanks, I should have the vids up on Sunday. I have to work all day tomorrow. :(

ultimatejay 10-04-09 10:48 PM

Here's the vid from Thursday night.

http://www.youtube.com/watch?v=EbHo4BXEwYo

n0ferz 10-04-09 11:18 PM


Originally Posted by ultimatejay (Post 9541232)
Here's the vid from Thursday night.

http://www.youtube.com/watch?v=EbHo4BXEwYo

That was fun to watch Jay, wheels were in the air in both runs for a couple fts:icon_tup:

Keep up the good work!

ultimatejay 10-04-09 11:38 PM


Originally Posted by n0ferz (Post 9541300)
That was fun to watch Jay, wheels were in the air in both runs for a couple fts:icon_tup:

Keep up the good work!

Thanks, when are you heading back out to the strip?

n0ferz 10-05-09 08:12 AM


Originally Posted by ultimatejay (Post 9541336)
Thanks, when are you heading back out to the strip?

Going there in a couple weeks, the ida goes in this week:icon_tup:, I just got her this saturday back from the shop with bigger front brakes and new brake master cyl, still need to install rear brakes to be safer :lol:

ultimatejay 10-05-09 02:32 PM


Originally Posted by n0ferz (Post 9541775)
Going there in a couple weeks, the ida goes in this week:icon_tup:, I just got her this saturday back from the shop with bigger front brakes and new brake master cyl, still need to install rear brakes to be safer :lol:

Yeah, I got the wheels up pretty good on the first pass. I need to get my 60fts down in the 1.4's or 1.3's. I just haven't had much time to mess around with the suspension yet. It is bone stock right now. Here' a vid of one of my runs at an IDRC event where I got the wheels off the ground in second gear. It's at 1.12 in this video http://www.youtube.com/watch?v=eKDZ-...eature=related.

Good luck on your next runs and keep me posted. :icon_tup:

13BT_Starlet 10-05-09 05:38 PM

Hey Jay great job on the driving pretty consitant on the time at the thursday event.

ultimatejay 10-05-09 10:32 PM


Originally Posted by 13BT_Starlet (Post 9542949)
Hey Jay great job on the driving pretty consitant on the time at the thursday event.

Thanks, I just need to practice shifting faster. The car/motor has been really consistant and reliable, so I am very pleased with that. This motor has been running for almost 2 years now without skipping a beat. For all those who say rotary engines are not reliable go stuff it. :)

n0ferz 10-06-09 08:02 AM


Originally Posted by ultimatejay (Post 9543693)
Thanks, I just need to practice shifting faster. The car/motor has been really consistant and reliable, so I am very pleased with that. This motor has been running for almost 2 years now without skipping a beat. For all those who say rotary engines are not reliable go stuff it. :)

wow 2 yrs as bridgy??? I want one like that:)

13BT_Starlet 10-07-09 03:59 PM


Originally Posted by ultimatejay (Post 9543693)
Thanks, I just need to practice shifting faster. The car/motor has been really consistant and reliable, so I am very pleased with that. This motor has been running for almost 2 years now without skipping a beat. For all those who say rotary engines are not reliable go stuff it. :)

Thats what I call reliable , its all in the clearences. If someone put an engine with nothing but worne out parts and not clearencing what can they expect, catastrophe every time. Thats why they say the rotary are not reliable its not the engine its them:lol::lol::lol:

ultimatejay 10-07-09 06:17 PM


Originally Posted by 13BT_Starlet (Post 9547733)
Thats what I call reliable , its all in the clearences. If someone put an engine with nothing but worne out parts and not clearencing what can they expect, catastrophe every time. Thats why they say the rotary are not reliable its not the engine its them:lol::lol::lol:

Yeah, I spent about 6hrs on clearancing all my seals on 600 grit and a granite level slab. It's a pain in the ass, but if you do it right the engine will last longer and have more compression.

13BT_Starlet 10-08-09 12:40 PM


Originally Posted by ultimatejay (Post 9548053)
Yeah, I spent about 6hrs on clearancing all my seals on 600 grit and a granite level slab. It's a pain in the ass, but if you do it right the engine will last longer and have more compression.

Hard work has paid off , what more can you ask for:icon_tup:

ultimatejay 10-08-09 10:28 PM


Originally Posted by 13BT_Starlet (Post 9549725)
Hard work has paid off , what more can you ask for:icon_tup:

True that. :)


All times are GMT -5. The time now is 02:42 PM.


© 2024 MH Sub I, LLC dba Internet Brands