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-   -   Dynamite .21XPE V. Alpha Red Head (https://www.rctech.net/forum/offroad-nitro-engine-forum/435836-dynamite-21xpe-v-alpha-red-head.html)

jmaxey51 10-11-2010 07:06 AM


Originally Posted by NitroXray80809 (Post 8054212)
On my Dynamite break in i got a lil over a half of a gal on the exp and with plug out i sitill have a little resistance, so im not 100% past break in but with plug in its got a butt load of resistance but i dont need a heat gun to crank it now. I just raced it friday with 2053 and loved it. I ended up actually winning and coming off a 10 min race at 207, it had alot of power and the pipe did good, im sure another pipe will do better but i got 7+ mins on a tank still running really fat considering once i get about another 3/4 gallon through it i will see what it does at about 240. Not ganna go 250 which is what alot of people say run it at but im confadent that i found my engine im ganna stick with and thats DYNAMITE! Alpha also very nice i might try it next.

i can tell you right now if you run it rich you will break a rod alot quicker, running rich wont make your engine last longer, it will shorten the life of the engine just like it would running it lean, dont be scared to get it hot, i dont use a temp gun for that purpose, i temped mine this weekend and i was coming off at 270-275 and it was tuned perfect. but like i said running it rich is bad for it too! :nod:

NitroXray80809 10-11-2010 03:52 PM


Originally Posted by jmaxey51 (Post 8055191)
i can tell you right now if you run it rich you will break a rod alot quicker, running rich wont make your engine last longer, it will shorten the life of the engine just like it would running it lean, dont be scared to get it hot, i dont use a temp gun for that purpose, i temped mine this weekend and i was coming off at 270-275 and it was tuned perfect. but like i said running it rich is bad for it too! :nod:

im not purposly running it rich im still in break in process. Trust me once i find that tune i like its stayin and the tune i had for the track i ran was perfect lol it was a lil track so it did perfect. Once i get out to my lhs im tunning it in to where it needs to run for a big and fast track. Im just trying to find longevity to, i would much rather pay 30 for a rod then 100 for a whole p/s/r kit lol.

transplantlife 10-11-2010 07:43 PM

is the xpe enough to push a truggy around:confused:

NitroOB4You 10-11-2010 07:50 PM

Supposedly this engine is comparable to the Alpha Z, Green Monster. That being said, I am running the Z in my D8T and am very happy :)

jmaxey51 10-11-2010 07:54 PM


Originally Posted by NitroOB4You (Post 8058465)
Supposedly this engine is comparable to the Alpha Z, Green Monster. That being said, I am running the Z in my D8T and am very happy :)

its almost identical to the F850.... and to answer the truggy question, IMO no, the Z works pretty good in truggy but the red head Alpha i have to say no, its to smooth... also i would just get a Orange head Alpha which is cheaper...

http://www.championrc.com/catalog/En...ories/Alpha-rc

talked to the owner today and he said he is about to have them back in stock :nod:

22Racer 10-11-2010 08:29 PM

I run the Alpha S852 (orange) in my truggy and the Z852 in my buggy. My son is sponsored by Dynamite and runs the Dynamite Xpe in his truggy and buggy. I have had them both apart and the Dynamite is just like the Z852 not the red head. In my opinion the S852 is perfect in a truggy, awesome bottom end and great top end. The Xpe in my sons truggy runs very well also, he gets quite a few looks as it really rips on the top end.
I have not ran the red head yet, I have had one apart and did some measuring on the port timing etc. Just a little modding and it would rip as good as the Z852. I will probably run one in my buggy next year.

Rex

NitroXray80809 10-20-2010 09:32 PM

Lovin this engine so far even with grp 20503 im gettin great power bands. Im still fat im runnin 207ish range but will be leanin it a bit this friday. I got over a half a g on it and i think its ready for some more heat. Last friday i got a good early lead winning on a small track and had a bobble leading to crash and lost the guys. Still had a great day though, going from b main mid pack average to a main average is very impressive. also nice to not have a flame out or anything which i have had happen almost every race before this engine. I would have to say kudos to the dynamite and Alpha team for making a great engine for a great price.

transplantlife 12-29-2010 05:52 PM

anymore updates on this engine

NitroXray80809 12-29-2010 10:10 PM


Originally Posted by transplantlife (Post 8407656)
anymore updates on this engine

Yes will wheel a truggy just fine. 2 of my friends run them in truggy, they both scream and run very nice. Only thing ive had with this engine is my top needle o-ring want bad and made the needle really easy to loosen, but 25 cents laiter that day and it was the end of it. Never had it happen again since.

jmaxey51 12-29-2010 10:16 PM


Originally Posted by NitroXray80809 (Post 8409079)
Yes will wheel a truggy just fine. 2 of my friends run them in truggy, they both scream and run very nice. Only thing ive had with this engine is my top needle o-ring want bad and made the needle really easy to loosen, but 25 cents laiter that day and it was the end of it. Never had it happen again since.

if you have an old Nova engine or carb laying around, the high speed needle fits, the hole piece... and IMO it made my Alpha a whole new animal :nod:

NitroXray80809 12-29-2010 10:18 PM


Originally Posted by jmaxey51 (Post 8409103)
if you have an old Nova engine or carb laying around, the high speed needle fits, the hole piece... and IMO it made my Alpha a whole new animal :nod:

hmm i dont but my friend has an 3(i think im not positive) port he dont run no more. You think it will fit?

DOMIT 12-30-2010 08:28 AM


Originally Posted by NitroXray80809 (Post 7961176)
Ok thanks Rex. I like the Dynamite engine line there tough and reliable for the price. Not saying others are worse but im pleased with it. Im ganna try the 2053 and if it dont seem to do much im ganna go jp3 maybe jp1 lol

On the ORANGE head I run a Dynamite 053 with a short square header, and it rips... great runtime too.

The Losi RE11 is an inexpensive pipe that works really well on them... it is essentially an OS 2050 clone. It is also tough and good looking compared to other pipes in the price range.

DOMIT 12-30-2010 08:32 AM


Originally Posted by NitroXray80809 (Post 8024599)
just got mine completly broke in on my 2053 i liked it alot not alot of bottom though but it will do the job.

If it truly is a rebadged Z852 that is a characteristic of that engine... soft on the bottom and BALLISTIC on the mid and top. ("Soft" is a relative term... one of my "crew" runs it in Truggy... won the Lone Star Classic in sportsman with it. If it lacked power anywhere that wouldn't happen!)

DOMIT 12-30-2010 08:38 AM


Originally Posted by NitroXray80809 (Post 8101671)
Lovin this engine so far even with grp 20503 im gettin great power bands. Im still fat im runnin 207ish range but will be leanin it a bit this friday. I got over a half a g on it and i think its ready for some more heat. Last friday i got a good early lead winning on a small track and had a bobble leading to crash and lost the guys. Still had a great day though, going from b main mid pack average to a main average is very impressive. also nice to not have a flame out or anything which i have had happen almost every race before this engine. I would have to say kudos to the dynamite and Alpha team for making a great engine for a great price.

207 has to be really fat with no more fuel than you have through it. It's probably spitting drops of fuel out of the pipe at that temp.

Wait until about the 2 gallon mark when it really drops it's nads... THEN 207 might be the appropriate temp to tame it down enough to handle! :eek: :lol:

NitroXray80809 12-30-2010 10:53 AM


Originally Posted by DOMIT (Post 8410517)
207 has to be really fat with no more fuel than you have through it. It's probably spitting drops of fuel out of the pipe at that temp.

Wait until about the 2 gallon mark when it really drops it's nads... THEN 207 might be the appropriate temp to tame it down enough to handle! :eek: :lol:

yeah im at about 2 gal mark now running at 220 range and its super nice. Im runnin the Dynamite 053 pipe now and its really smooth and fast on top end im loving it.


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