Since my new build will be up and running within a week, i was just wondering would it be safe if i could run my car on a map that wasn't made for it.

with my old setup, I had it street tuned with a Hondata and it ran well till it stretched a rod bolt.

The old setup was as follows
Hondata S200
RC 440's
B&M Fuel Pressure Regulator/Guage
CR 11.2:1
Toda Spec C

My New setup is:
Hondata s200
RC 440's
B&M Fuel Pressure Regulator/ Guage
CR ~12.4:1
Toda Spec C
New Header

I am able to get 94 from every station within a 5km radius of my house.
My question is will it run good enough to drive on the hwy and city with a Map that was tuned for a lower CR motor?

 

you should be fine. just dont go into vtec until its tuned in my opinion

 

no up top it will need more fuel and also watch out for big hills as well

 

all that time and money and you would even risk it ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by na 1.5 &raquo;</TD></TR><TR><TD CLASS="quote">all that time and money and you would even risk it ?

</TD></TR></TABLE>

I have to break it in first before i can tune. I don't want to do the drive it hard on first start up method for break in

 

kind of wondering the same thing. I'll be running a freshly build ls/vtec with sk2 stage II's 11:9:1 compression. I have a hondata s100 with a 2.0l all motor program on it, but wasn't planning on putting it in until I go to the dyno. I'll probably just use my xs engineering ecu that I had before for the first 200 miles or so then tune and enjoy. I would think that ~50% throttle and less than 4k rev would be ok on that ecu till I can tune, but I haven't found much information on it.

 

I was maybe thinking of just cranking up the fuel pressure to around 60-70ish and just waste gas just to be on the safe side.

My daily commute will be all hwy from my house to school

 

you will probably be alright but you might want to read this
http://www.hastingsmfg.com/Ser...e.htm
some people will be like i put on 3000 miles blah blah. i prefer to start tuning it right away. i would hate to see you driving around lean. check your plugs, retard timing and take it easy i guess.

 

lohatch is right i think its better too get it tunned right away and have a great map to run then too be hurting the piston skirts or det and pounding on the bearings due too running lean,

 

I agree. The machine shop said to drive it for 30min to one hour and then go tune. The motor will be going in on friday. I plan on heading for the dyno first thing saturday morning. I'm just not going to run the hondata till I get to the dyno. I've got to switch the injectors when I get there anyway

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HypeR1004 &raquo;</TD></TR><TR><TD CLASS="quote">

I have to break it in first before i can tune. I don't want to do the drive it hard on first start up method for break in </TD></TR></TABLE>

no you dont....u should get it on the dyno straightup..... too rich...ring washout..rings wont seal...too lean...****** will heat up and well....u get the pic

 

Exactly, I can't believe someone would have the ingenious idea of cranking up the fuel pressure to 60-70 on a fresh block lol, people!

 

thanks for all the comments

how about some word from the season'd engine builders such as B19coupe, Omniman, Rocket?

 

This is one big problem that seems to go unnoticed, you can't just go from off the engine stand to racing at the strip. How are people breaking in their engines. i was thinking the ecu could run in open loop if your easy on the throttle so you can break it in, then go get it tuned after break in. Big Issue, needs solving.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rjay8604 &raquo;</TD></TR><TR><TD CLASS="quote">This is one big problem that seems to go unnoticed, you can't just go from off the engine stand to racing at the strip. How are people breaking in their engines. i was thinking the ecu could run in open loop if your easy on the throttle so you can break it in, then go get it tuned after break in. Big Issue, needs solving. </TD></TR></TABLE>
BREAK-IN PROCEDURE
1. Make a test run at 30 miles per hour and accelerate at full throttle to 50 miles per hour. Repeat the acceleration cycle from 30 to 50 miles per hour at least ten times. No further break-in is necessary. If traffic conditions will not permit this procedure, accelerate the engine rapidly several times through the intermediate gears during the check run. The object is to apply a load to the engine for short periods of time and in rapid succession soon after engine warm up. This action thrusts the piston rings against the cylinder wall with increased pressure and results in accelerated ring seating.

2. Following the breaking-in, turn the vehicle over to the owner or operator with the following suggestions:

PASSENGER CAR AND LIGHT TRUCK
Drive vehicle normally but avoid sustained high speed during the first 100 miles.

if you do not have a wideband O2 sensor or a way to tune your vehicle upon startup you should go to a dyno. if you feel that you dont want to run your motor into higher RPMs until you put more miles on it then get it tuned for narrow throttle settings and then drive within those parameters. break your motor in however you want. hastings has been making rings for awhile, and i will continue to break my motors in like this.


Modified by lohatch at 9:39 PM 3/30/2005