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Need a few tips to tune my Novarossi REX28-8... :)

Nathan.OTN

Member
Messages
10
Hello HPI Savage Community !

I have an issue with my engine and I think it's a bad tuning but I want to hear your advice.

At the moment, my engine has a good top speed but in the low RPM, the engine smokes a lot and has difficulties to raise up his speed. I didn't touch the High-end screw so that it is still to factory settings. I tryied to tighten the Low-end screw on the carburetor. I turned 3/4 clockwise from factory setting. it's better but it is not smooth, there is still a lot of white smoke and the engine is not as reactive as I can see on youtube videos. I unmounted my glow plug. The coil looks good but the round base il black/brown. Regarding all these information, I think my engine runs too rich.

I've had a LRP ZR32 spec 2, but I ran it too lean and I broke it. The piston and the top of the chamber were looking "sanded". Since, I've never touched the High End screw of my new Novarossi.


Here are some details about the engine:
Model: Novarossi REX Legend 28-8
Clutch: HPI 16 tooths
Spur Gear: HPI 52 tooths
Fuel: Labemax 25%

What do you think about this ? Isn't it best to recall factory settings and completely tune the engine ?
 

BrandNewSavvy

Member
Messages
14
I've had a LRP ZR32 spec 2, but I ran it too lean and I broke it. The piston and the top of the chamber were looking "sanded". Since, I've never touched the High End screw of my new Novarossi.
Hi bud,

Can you please elaborate on 'running too lean' and 'breaking it'. I am unaware of this happening (including this 28-8, which I also have). I'm just saying you are 100% the engine is 'broken'? I've been doing this a while and have yet to hear of this...so let's just hope it's a good ol' fashion tuning error. Lean engines will almost always cut out before any real-damage occurs,

Regarding the Nova, its best to have a process for tuning the engine (as opposed with just just turning the low end needle and hope it sounds good? The needles work in unison...and I imagine you just think you ruined your LRP and are gun-shy with the 28-8, but these things like to be told what to do. So they are more durable vs what you might think ,

Back to the LRP, if you truly feel it is broken, I am willing to buy it from you. Can you please PM (or reach me somehow) so we can work out the logistics? A video would be great!

.
 
Last edited:

Nathan.OTN

Member
Messages
10
Hi bud,

Can you please elaborate on 'running too lean' and 'breaking it'. I am unaware of this happening (including this 28-8, which I also have). I'm just saying you are 100% the engine is 'broken'? I've been doing this a while and have yet to hear of this...so let's just hope it's a good ol' fashion tuning error. Lean engines will almost always cut out before any real-damage occurs,

Regarding the Nova, its best to have a process for tuning the engine (as opposed with just just turning the low end needle and hope it sounds good? The needles work in unison...and I imagine you just think you ruined your LRP and are gun-shy with the 28-8, but these things like to be told what to do. So they are more durable vs what you might think ,

Back to the LRP, if you truly feel it is broken, I am willing to buy it from you. Can you please PM (or reach me somehow) so we can work out the logistics? A video would be great!

.
Hello BrandNewSavvy, I sent you a message about the ZR32 which I have thrown away... :( Can you explain a bit about your tuning process ? :) I found this thread wich seems to be excellent: Link HPISavageForum
 

BrandNewSavvy

Member
Messages
14
Hey my man,

I’been caught up but will check our your message and of course will give you my suggestions I’ll also check out the link you posted and address any discrepancies in what I feel you should do. I appreciate patience...but yeah I got you. No worries.
 

BrandNewSavvy

Member
Messages
14
So here are some Nova 28 clips I referenced earlier. These are old but the only other clips I have would be in 1:8 truggy qualifiers/mains...and that's nothing but me crashing every other lap and the sound of 9 other engines screaming their tits off it's hard to tell which engine is which.
Ironically I got the Nova 28 for my Savage, however it was way too much power.
That Savage couldn't handle that Novarossi, It is just too much engine. The scary part is I have some Novarossi .21's (Bonito and Virtus) along with a .25 (That Roma) which will steady *smoke* the 28. Its funny the 28 might win out in Dyno stats, but mocing the vehicle from point A to Point B there are some real evil .21 engines out there. I will put my Spec II Speed up against any engine in the world. It's scary grimy. ugh! [shivers]

 
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