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  #1  
Old 07-11-2008, 11:35 AM
ao.frog ao.frog is offline
 
Join Date: Sep 2006
Location: Manstad, Norway
Posts: 866
Default Which Engine limits for a IO-360?

Hi.

I'm about to program the AFS-3500 with the engine limits and so far I haven't been able to find all the limits.

Setup: XTREEM IO-360 PLUS (B1AD2) with dual P-mags and a M/T-15B 183-402 prop.
Silverhawk fuel injection

Here's what I've found, digging through the engine manual, the website and others checklists:

PRM: 700-2700

Oil temp: Minimum 75 psi, green 130-200, yellow: 120-130 and 200-245. Max 245

CHT: Green 300-400, yellow 400-430. Max 500

Fuel press: 15-35

Oilpress: Minimum 25, green 60-80, yellow 80-95, max 95

I've not found anything on EGT?

Are these numbers accurate?
What do others use?

By the way: all press are PSI, all temps are F

Thanks.
__________________
Regards Alf Olav Frog / Norway
First RV-7 completed, (bought partly finished from a US-builder) 305 hrs per July 2014, SOLD
Second -7 had first flight Feb 25th 2014. 220 hrs pr July 2019. Life is good!
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  #2  
Old 07-11-2008, 12:40 PM
asav8tor asav8tor is offline
 
Join Date: Oct 2006
Location: Seattle, wa
Posts: 679
Default

Using the book numbers are fine to get started. As your engine, installation and the way you operate it get settled in revisit the ranges and tighten up the green arcs to your "Normal". This way a deviation to yellow alerts you way sooner than having a big green arc.

You might down the road want to lower the max CHT to 400, and tighten up the oil green arc to 180-210.

Last edited by asav8tor : 07-11-2008 at 12:42 PM.
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  #3  
Old 07-14-2008, 11:53 AM
ao.frog ao.frog is offline
 
Join Date: Sep 2006
Location: Manstad, Norway
Posts: 866
Default EGT?

Hi again.

I've learned alot regarding engine limits now and it seems like my numbers are ok, except the above recommendation.
Also, I've learned that the oil press normal range is 80-90, max 95 (115 on starts on cold days.)

BUT: what kind of EGT can I expect?
I've not been able to find anything on that...
I guess every aircraft is different, but can anyone give me a general idea which EGT's to expect for idle, run-up, takeoff and climb for example?
And 75% rull rich cruise? (for breakin)

Thanks.
__________________
Regards Alf Olav Frog / Norway
First RV-7 completed, (bought partly finished from a US-builder) 305 hrs per July 2014, SOLD
Second -7 had first flight Feb 25th 2014. 220 hrs pr July 2019. Life is good!
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