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Old 10-30-2008, 08:31 AM   #1
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Default Anyone get 10 minutes on a .28?

I know this is very subjective but I am looking for real world experiences.

I am picking up a ZO1-T and thinking of getting a GRP .28 tuned. I know I could use the .21 but I've always wanted a .28. I plan to run it with a 6-7 mm spacer and a 053 pipe and being gentle on the throttle. My track will be doing 10 minute mains, if we don't have mandatory pit stops I'd like to play the fuel mileage game. In which case I would get the .21.
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Old 10-30-2008, 08:49 AM   #2
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I have yet to see any .28 get 10 minutes of "Race" time.(Not to say it's not impossible) But, I do see .21 (Mostly OS) get 10+ minutes with a "good" tune, with "finger" control.
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Old 10-30-2008, 09:12 AM   #3
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Go with the .28

I have a .21 in my truggy and I can't get any power out of it over jumps

it's fast on straights and rythm sections

fuel mileage may not be as good with the .21 but you'll see a different in speed

unless your a cautious driver, buy the .21 depends on driving style
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Old 10-30-2008, 09:27 AM   #4
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I seem to actually do better with more power. I run a Picco red dot in my Revo for example and let me tell you it pulls with the 2 speed!
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Old 10-30-2008, 09:32 AM   #5
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then you'd be better off with the .28

might not get that great of mileage but you'll be able to wheel around the people with .21 (in the air)

yeah I've seen some crazy stuff happen before.
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Old 10-30-2008, 10:14 AM   #6
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Nice to finally hear something good about running a .28 everyone has been talking me out of it!
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Old 10-30-2008, 10:19 AM   #7
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Based on what I have seen over the years, people who try to go 10 minutes don't succeed a third to half of the time, even with vspecs. I would recommend getting a .25 or .28, pitting once, and never have an issue of running out of gas. If your pit guy is fast enough the pit stop wont be an issue. Just my opinion.

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Old 10-30-2008, 10:33 AM   #8
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Agrees with kendall, if I was going to run truggy I would probably use a Go .25. but that is just me, i love me some Go engines. Any .25 or .28 you choose would be fine. you should only LOSE roughly 10 secs on a pitstop, but you can make that up with smooth driving, and when they have issues with either gas, or whatever.

Not to bad if you are only losing 10 secs a race but have more power then them.

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Old 10-30-2008, 10:50 AM   #9
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Thanks guys. Just the info I needed. thanks Steve
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Old 10-30-2008, 11:17 AM   #10
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Well, a 5.4mm restrictor, 16% nitro, 3xxx numbered pipe, 15 tooth clutch with light springs and a smooth finger would probably go 10 minutes. Don't know if it would be fast though.
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Old 10-30-2008, 11:18 AM   #11
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i watched a guy go ten consistently with zx .28... i was always thinking he would run out..
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Old 10-30-2008, 11:21 AM   #12
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I would think that with a small restrictor, the throttle epa turned down and smooth driving as well as using 2 fuel filters for extra capacity would net 10 minutes of run time on a truggy.....

Don't ask me how I know that though.....
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Old 10-30-2008, 11:30 AM   #13
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Quote:
Originally Posted by MattP View Post
I would think that with a small restrictor, the throttle epa turned down and smooth driving as well as using 2 fuel filters for extra capacity would net 10 minutes of run time on a truggy.....


Don't ask me how I know that though.....
well it was at an rc pro race and he passed tech.... soooo he was not over on capacity. smooth driving always helps!
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Old 10-30-2008, 11:55 AM   #14
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I would say it could be done. I have seen modded v-specs run 13+ mins in truggies but I dont think you will get ten min with the GRP. I know people that are having trouble getting 8 mins out of the .21s.. I dont know if it is the motor or the drivers, maybe some people that run GRPs can chime in. I am also looking at the GRP .28 but I am not trying to get 10mins out of a tank. JMO
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Old 10-30-2008, 01:11 PM   #15
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Full mod extech .24 at my last club race went 11:15 before flaming out and I'm pretty heavy on the throttle.
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