22Likes

Houstons Engine Service H.E.S.

Reply Subscribe

Thread Tools

Search this Thread

10-21-2009 | 09:01 PM

#1636

houston

Thread Starter

Tech Prophet

iTrader: (96)

Joined: Sep 2004

Posts: 15,844

From: Sherwood,OR

Quote:

Originally Posted by Lille-bror

Hi

Will adding shims make a better mileage?

Cheers

To a certain extent , going past the .90mm mark on nova engines will not benefit the engine .. and keep in mind the piston/sleeve set must still have really really good compression .

10-21-2009 | 09:06 PM

#1637

houston

Thread Starter

Tech Prophet

iTrader: (96)

Joined: Sep 2004

Posts: 15,844

From: Sherwood,OR

Quote:

Originally Posted by unsp0ken

the tuned 3 port is running wonderfully. that engine is really awesome for the price. it's right around 2 gallons now and i couldn't be happier with its performance. i put in a race tune on it this past weekend for the first time and i ended up winning the race. will be sending it to you soon for a check up and some of that added shimming for more fuel economy and smoother response.

the 5 port i haven't used in the last couple of weeks since i haven't been able to replace that o-ring yet. still haven't received it in the mail

. hopefully it gets here this week so i can use it to race this weekend. but yea, the power on the thing is awesome. that crank that you put in made a noticeable difference. something happens in the midrange on that engine where it just suddenly starts pullinnngg craazy.

My tuned 3 ports come shimmed at .80mm already

Getting very busy , hope I can keep up

10-21-2009 | 09:19 PM

#1638

unsp0ken

Tech Fanatic

iTrader: (25)

Joined: Feb 2007

Posts: 781

From: Fontana, CA

Quote:

Originally Posted by houston

My tuned 3 ports come shimmed at .80mm already

Getting very busy , hope I can keep up

i thought shimming it at .85 made things a bit better? no?

10-22-2009 | 08:03 AM

#1639

3DRCRACER

Tech Addict

iTrader: (1)

Joined: Mar 2009

Posts: 555

Monty

You doing anything for the plus 4c? I have 2 gallons on it now and have put it up for the next race season. Have my 8 gallon plus 4 back in the truggy. I did notice not as good of mileage from the C as expected. Getting 10.5 from the C compared to 11.5 from the reg +4. Is this normal? Same pipe header combo. Is 2 gallons to early to tell? Seems I was getting better at 2 gallons with the plus 4. Anyway, any massaging possibilities or are the C's massaged enough?

10-22-2009 | 08:15 AM

#1640

houston

Thread Starter

Tech Prophet

iTrader: (96)

Joined: Sep 2004

Posts: 15,844

From: Sherwood,OR

Quote:

Originally Posted by 3DRCRACER

The C already has some crankwork done over the plus4 . Timing advances and different design in the fuel exit portal of the crank. The sleeves I am not sure if there are port heighth differences yet or not , I need to measure them up . As with almost any engine there is room for handfinishing , if it is necessary then I do it if it is well enough then it gets left alone .

As far as the mileage diff. , that's hard to answer as there are always so many variables .
If the engine still has pinch you will most likely not get as good of mileage as an engine that just has great compression .

Monty

10-22-2009 | 09:34 AM

#1641

mwilcox

Tech Adept

iTrader: (2)

Joined: Feb 2008

Posts: 137

From: omaha

Quote:

Originally Posted by houston

you should definitely preheat the engine in colder weather , especially if engine still has pinch .

so you like the engine then ?

Monty this engine is unbelievable when i say nothing could touch it i mean nothing, that and with all the help youve already givin me not even knowing me you already have a customer for life i tried warming the engine yesterday and it fired right up after preheat and prime thank you and hope fully i can put the toro nero in the winners circle in Texas.

p.s. could you send me some h.e.s. stickers would love to advertise for you at the finals

10-22-2009 | 11:45 AM

#1642

blktransam

Tech Elite

iTrader: (59)

Joined: Mar 2008

Posts: 4,306

From: IOWA

what the heck I was the one to say to preheat it

anyways MOnty engine arrived to FIANLY damn post office anyways, everything looks good thanks.

Ryan

10-22-2009 | 12:42 PM

#1643

houston

Thread Starter

Tech Prophet

iTrader: (96)

Joined: Sep 2004

Posts: 15,844

From: Sherwood,OR

Quote:

Originally Posted by blktransam

what the heck I was the one to say to preheat it

anyways MOnty engine arrived to FIANLY damn post office anyways, everything looks good thanks.

Ryan

Yes you did ryan . Three keys to running in , preheat , do not over rev, piston free from pinch zone when cooling engine . Also use high quality fuel such as byrons

Thanks for letting me know the engine got there ryan , I was getting a little worried .

10-22-2009 | 03:24 PM

#1644

phoenix357

Tech Adept

Joined: Aug 2008

Posts: 103

From: upstate ny

Montey are you running the st rr ? I am looking at getting a new truggy for next year.

10-22-2009 | 03:53 PM

#1645

Trevor Williams

R/C Tech Elite Member

iTrader: (207)

Joined: Feb 2009

Posts: 8,382

From: Illinois

yes he does, I drove his truck........it was dialed

10-22-2009 | 05:12 PM

#1646

WINTER350

Tech Adept

Joined: Jun 2009

Posts: 224

From: Last main....Still there

Quote:

Originally Posted by phoenix357

Montey are you running the st rr ? I am looking at getting a new truggy for next year.

STRR is a great ride, all summer of driving my mp9 and in the first race with my STRR I was almost as fast as my buggy, in the second race I was as fast as my buggy times. I just picked the truggy up a month ago, so had very limited drive time. It is a great truggy. very happy with mine.

Monty probably drives his a little faster than me though.lol