REX PR321P Tune
#1
Tech Master
Thread Starter
REX PR321P Tune
I was wondering anyone did any review or testing on REX PR321P Tune?
Say comparison with differerent motors? like
1. JP RX21 R1 Kangaroo
2. REX PR21 Mario Rossi
3. Novamax MX21
4. RB C5 Rody/Collari
would like to get some info on this motor! TIA
Chris, Ron, Ryan? arent you guys running the Tune 321P?
Thanks again
Say comparison with differerent motors? like
1. JP RX21 R1 Kangaroo
2. REX PR21 Mario Rossi
3. Novamax MX21
4. RB C5 Rody/Collari
would like to get some info on this motor! TIA
Chris, Ron, Ryan? arent you guys running the Tune 321P?
Thanks again
#2
Tech Master
Thread Starter
Re: REX PR321P Tune
Chris? Ron? are you guys getting ready for TFT? if you would please let me know how it goes!
and especially the REX tune one !hehe Thanks
and especially the REX tune one !hehe Thanks
Originally posted by Ah10
I was wondering anyone did any review or testing on REX PR321P Tune?
Say comparison with differerent motors? like
1. JP RX21 R1 Kangaroo
2. REX PR21 Mario Rossi
3. Novamax MX21
4. RB C5 Rody/Collari
would like to get some info on this motor! TIA
Chris, Ron, Ryan? arent you guys running the Tune 321P?
Thanks again
I was wondering anyone did any review or testing on REX PR321P Tune?
Say comparison with differerent motors? like
1. JP RX21 R1 Kangaroo
2. REX PR21 Mario Rossi
3. Novamax MX21
4. RB C5 Rody/Collari
would like to get some info on this motor! TIA
Chris, Ron, Ryan? arent you guys running the Tune 321P?
Thanks again
#3
Re: Re: REX PR321P Tune
Originally posted by Ah10
Chris? Ron? are you guys getting ready for TFT? if you would please let me know how it goes!
and especially the REX tune one !hehe Thanks
Chris? Ron? are you guys getting ready for TFT? if you would please let me know how it goes!
and especially the REX tune one !hehe Thanks
I'll see if we can get someone to post qualifying order after tomorrow.
#4
Tech Master
Thread Starter
Re: Re: Re: REX PR321P Tune
Originally posted by C Verano
Just go out and buy one. You'll like it.
I'll see if we can get someone to post qualifying order after tomorrow.
Just go out and buy one. You'll like it.
I'll see if we can get someone to post qualifying order after tomorrow.
I'll break it in coming saturday
#5
Tech Master
Thread Starter
Re: Re: Re: Re: REX PR321P Tune
Breaking in the motor today, here is what happened
Idle it very rich one tank on the starter box and kept blimping it as it idle, then ran it pretty rich for 4 tanks on the track man it is very very hard to not lean it out! but I still did, couldnt resist!
but the good thing is Christ was there, he warned me about running it lean...... so I richen it back up again, ran another 5 tanks then start leaning it out, kept the temp at 200 for the next 5 tanks.
man this motor is pretty darn powerful, tons of bottom end (compare with JP R1) and i think the bottomend power is similar with Mario Rossi PR21 or Max Power MX21.
after 15 tanks, when the motor is at operating temp, it doesnt bind at TDC, but when it's cold it still grabbed a little, I guess it still need more fuel running through it.
I'll post more info after next run!
Idle it very rich one tank on the starter box and kept blimping it as it idle, then ran it pretty rich for 4 tanks on the track man it is very very hard to not lean it out! but I still did, couldnt resist!
but the good thing is Christ was there, he warned me about running it lean...... so I richen it back up again, ran another 5 tanks then start leaning it out, kept the temp at 200 for the next 5 tanks.
man this motor is pretty darn powerful, tons of bottom end (compare with JP R1) and i think the bottomend power is similar with Mario Rossi PR21 or Max Power MX21.
after 15 tanks, when the motor is at operating temp, it doesnt bind at TDC, but when it's cold it still grabbed a little, I guess it still need more fuel running through it.
I'll post more info after next run!
#6
Tech Master
Thread Starter
Re: Re: Re: REX PR321P Tune
And Thanks Ron for the tips, running the headshim at 30 thousand.
#7
I saw it run, sounded very good. It looked very good, I can't resist a motor with a dark blue head
#9
Tech Master
Thread Starter
Re: Re: Re: Re: Re: REX PR321P Tune
Originally posted by jwf-ronni
You're quite welcome Tony...
Seem like you may now start sinking in that Needle Screw (little by little) and make that motor SCREAM !
You're quite welcome Tony...
Seem like you may now start sinking in that Needle Screw (little by little) and make that motor SCREAM !
Bottom to mid is very powerful but seems like rpm pick up is not as fast as JP and the top too!
after it is fully broken in I will put the JP back in there do a back to back comparison, and I will try different gearing too! (since this motor seems like it has more torque), I might be able to get away with 21t 2nd pinion instead of 20.
#10
Hello everyone how much is this motor?Is it modified?I am looking for a rex 321p onroad.Does anyone know of a good place to buy one of these.thanks
mike
mike
#11
Tech Master
Thread Starter
Originally posted by whynot
Hello everyone how much is this motor?Is it modified?I am looking for a rex 321p onroad.Does anyone know of a good place to buy one of these.thanks
mike
Hello everyone how much is this motor?Is it modified?I am looking for a rex 321p onroad.Does anyone know of a good place to buy one of these.thanks
mike
321P Tune version is tuned by Mario Rossi
#12
Originally posted by whynot
Hello everyone how much is this motor?Is it modified?I am looking for a rex 321p onroad.Does anyone know of a good place to buy one of these.thanks
mike
Hello everyone how much is this motor?Is it modified?I am looking for a rex 321p onroad.Does anyone know of a good place to buy one of these.thanks
mike