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Old 11-19-2008, 02:22 AM   #1
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Default truggy engine ??

hi guys just wondering whats the best all round engine for a xray xt8 ???
good power?
easy tuning?
and half decent fuel economy ??
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Old 11-19-2008, 03:49 AM   #2
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you will get a ton of answers here....anywhere form a Nova p5, OS v spec Ninja jx .21. most 3 or 5 port engines will do. i had a RBmods Go tech 5 port and it was almost perfect for my xt8, to me a little better than a c6BB. for $200 a go tech .25 is a good choice i have one of those two, and it does nice although the topend is a little weak in my opinion. there are a ton to choose from.
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Old 11-19-2008, 03:57 AM   #3
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the new go m5 when it comes out next month
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Old 11-19-2008, 05:24 AM   #4
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I have a C6BB7T in my XT8 and love it. Screams from bottom to top and gets good fuel economy to boot. I have ran the go 3 Port Race, Go 7 Port race, RB 7 Port, V-Spec all in it and none of them compare.
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Old 11-19-2008, 06:30 AM   #5
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Alot of good suggestions here. I'd agree the C6 is a good choice with great fuel economy, Go Tech is also a good choice. If you're looking for a C6, you might be interested in this: FS: RB Concept C6 BBT
I'm going to list a Go Tech that has very little run time and is modified by RB Mods in the next day or so, for $150 you couldn't beat it w/13 minute run times.
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Old 11-19-2008, 07:21 AM   #6
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I am tagging along. I am kinda in the same boat. If I get a .21 it will likely be the Ninja JX21, if I get .28 I am still undecided between Picco, JPX, or GRP tuned.
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Old 11-19-2008, 07:28 AM   #7
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If you like raw power and a screaming sound the jx may be for you. The GRP .21 tuned is very smooth, quiet, and the best runtime of them all. It has a good lifespan as well.

http://www.carolinasrc.com/Webstore/...idproduct=8834
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Old 11-19-2008, 07:29 AM   #8
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>28 will have the power but I think lap times and control will suffer for you.
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Old 11-19-2008, 08:42 AM   #9
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Quote:
Originally Posted by ABURTON View Post
>28 will have the power but I think lap times and control will suffer for you.
I have to say the GRP .28 is at the top of my list. How do you feel about running the .28 with a 5-6mm restrictor?
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Old 11-19-2008, 09:01 AM   #10
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Ill run a modded Ninja .28 in truggy and venturi it down to 5-6mm IF the track justifies it....but most of the time a .21 will do the trick.
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Old 11-19-2008, 09:28 AM   #11
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Quote:
Originally Posted by Revo-daddy View Post
I have to say the GRP .28 is at the top of my list. How do you feel about running the .28 with a 5-6mm restrictor?
As for the engine you will love it. Gets good runtime for a .28 and is powerful! The 5-6 will help smooth it out. I run a 6 in my tuned .21 everywhere. It would be a good choice for .28's.

LEt me know what prices you can find and I may can send you in a cheaper direction. Just pm me...
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Old 11-19-2008, 10:08 AM   #12
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thanks for the input guys
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Old 11-19-2008, 01:00 PM   #13
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Default go3pr

Quote:
Originally Posted by jsmax View Post
I have a C6BB7T in my XT8 and love it. Screams from bottom to top and gets good fuel economy to boot. I have ran the go 3 Port Race, Go 7 Port race, RB 7 Port, V-Spec all in it and none of them compare.
i have a go 3pr how did that run in it i got the go 8081 pipe as well ????
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Old 11-19-2008, 02:20 PM   #14
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I run the Jammin JPX .28 and it rocks. I use a 7 MM restrictor, with the 2027 pipe and the double bent manifold. never question it again. 9 minute run times, powerful enough to ripe the asphalt off the street, and roost the dirt in the slow guys face!!!
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Old 11-19-2008, 03:34 PM   #15
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It all depends what you want from your engine whether it be dependability, tunability, longevity, price etc. From my experience I have grown to really enjoy the Picco P3-28. In stock trim it has its querks like high idle, lower fuel range and a leaky carb. This particular motor likes to be on the rich side as with most engines but this one really likes to be on the rich side in stock trim. The port configuration is decent but the timing specs and case flow are not the best so it tends to need the extra fuel to compensate for poor efficiency. Our stock moors were getting maybe 6 minutes on a good day and we battled overrev over the big jumps the whole time.

A nice race port and this motor is a completely different animal. It holds a tune like a champ, gets 10 plus minutes on the stock 9mm venturi, has mechanical pinch well into its 6th gallon and the powerband is incredable. The carb still leaks but doesn't affect the tune, just makes for a messy engine at the end of the day but that what parts cleaner is for and the rod slop is noticable at the 1 gallon mark but will still run well into the 5th gallon before needing replacement. The JPX and Trinity are of the same mold so it comes down to availability and what color you want the head to be.

I have tried alot of engines over the years and Novarossi and Picco have always treated me well, but for the performance, quality and price, the Picco is a hard engine to pass up. There are other engines that are as good or better but most of them cost twice the money and also have their own querks you have to deal with. The GRP based engines are another one up there on my list. The new Ex Tech's are a nice design and I'm still waiting for feedback on longevity on those but both the GRP and EX Tech's are short stroke big blocks which rely on bore for torque instead of stroke which is where real torque lies.

Another plus for the Picco is the triple exhaust ports. Those boosters give the cylinder so much more exhaust surface area to maximize blowdown without sacraficing piston life due to the exhaust bridges. The more exhaust surface area, the better the blowdown, the better the overall performance and the more you can do with the engine to target specific ranges.

Like everyone will tell you, there are alot of engines to choose from and some will perform better than others, some will last alot longer than others and some will do both but for the money, the Picco P3-28 is hands down the best bang for your buck in both performance and longevity. I also ran my N528XR this past year and it was a screamer of an engine, but I wasn't overly impressed with its tunabilty. It seemed to get finiky at times and I chased tune on it more than once this summer were the Picco I never touched and when the tune did change, I threw a new front bearing in it and it was fine again, not to mention the Nova was $380 where as the Picco was $190 and my fully race ported P3-28 is $275 shipped in the lower 48. Thats my opinion and some will agree with it and some won't so its up to you to figure out what you are after. Good Luck with your quest!!
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