SaturnFans.com
what's new (beta) - classifieds - forums - photos


Go Back   SaturnFans.com Forums > Models > Saturn S-Series > S-Series Mods
Register FAQ Members List Groups Calendar Chat Room Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
Old 04-30-2018, 04:39 PM   #21
Saturn Night
Master Member
Saturn Night is a jewel in the roughSaturn Night is a jewel in the roughSaturn Night is a jewel in the roughSaturn Night is a jewel in the rough
 
Join Date: Aug 2016
Location: Leavittsburg, OH
Posts: 2,931

1995 SC2
Default Re: MAP sensor question

Quote:
Originally Posted by Dunkinboom View Post
Supposed to run a stock PCM but the Hondas run chips. Supposed to be able to pull out pcm and swap with one they give you if they feel your cheating. But little do they understand mine would need to be reflashed with vin to even start. Not sure how Hondas are set up.
Running stock struts with special rate smaller springs. Just trying to get all the camber I can(no rule).
Your PCM does NOT need to be flashed with a VIN to start your vehicle. GM did not introduce Passlock Gen-II, with BCM-controlled security systems on the S-Series, until the 2000 model year.

What you can do, because it is a STOCK PCM(technically), is use the 1997 SC2 AUTOMATIC PCM. With the build on your engine, you should probably dyno test it to see where your peak HP is at in terms of RPM. The reason I say to use the PCM from an automatic is to remove the 6,750rpm rev limiter.

The PCM Saturn P/N should be identical, except the production sticker will read "Auto" somewhere on it. Just like running the 1992 OEM header, this is a "stock" PCM, just as the "stock" exhaust manifold would be on the car.

You are probably being forced to shift before your peak HP, which means you are short shifting and dropping below peak torque rpm as well.

Oh, and without getting longer pedal travel, that Geo Storm TB will never achieve WOT. I found that out, at the drag strip, after I converted mine. There is slightly more pedal travel needed.

...
"What does a Saturn owner do, at the gas station?"

"He checks the gas, and fills the oil....."

REWARD EXCELLENCE!

Add to Saturn Night's Reputation
Rate the quality of this post and help Saturn Night reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
Saturn Night is offline   Reply With Quote
SaturnFans.com Sponsored Links
Old 05-01-2018, 01:09 AM   #22
fetchitfido
Super Member
fetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant futurefetchitfido has a brilliant future
 
fetchitfido's Avatar
 
Join Date: May 2006
Posts: 13,964
 

2001 SC2
Default Re: MAP sensor question

I know they make 3 bar MAP sensors for turbo applications, would they have any benefit for a NA application? Might be worth testing if the sensor can be had cheap enough.

1st gen PCM's aren't encrypted like later gens and have been hacked. http://www.saturnwiki.com/wiki/index...Socket_The_PCM
While that isn't super hard to do, it's harder than splicing in a MegaSquirt.

REWARD EXCELLENCE!

Add to fetchitfido's Reputation
Rate the quality of this post and help fetchitfido reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
fetchitfido is offline   Reply With Quote
Old 05-01-2018, 08:16 AM   #23
Saturn Night
Master Member
Saturn Night is a jewel in the roughSaturn Night is a jewel in the roughSaturn Night is a jewel in the roughSaturn Night is a jewel in the rough
 
Join Date: Aug 2016
Location: Leavittsburg, OH
Posts: 2,931

1995 SC2
Default Re: MAP sensor question

2-BAR/3-BAR MAPs will not properly operate on a naturally-aspirated engine. Naturally aspirated engines ALWAYS operate with negative manifold pressure. Race engines and street engines are the same in this respect, because it is the physical characteristics of how an internal combustion engine operates. 2-BAR/3-BAR MAP sensors are calibrated for positive pressure(boost).

The only way to achieve boost on a naturally aspirated engine is using a RAM AIR induction system and achieving a speed above 100mph. Even then, the amount of boost is only about 0.16psi. And this "boost" can be handled safely, by a 1-BAR MAP sensor, as they are calibrated to about 1.5-BAR.

...
"What does a Saturn owner do, at the gas station?"

"He checks the gas, and fills the oil....."

REWARD EXCELLENCE!

Add to Saturn Night's Reputation
Rate the quality of this post and help Saturn Night reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
Saturn Night is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
O2 sensor question joshuabornemann S-Series Tech 6 02-04-2012 10:33 AM
02 sensor question ratwhisperer S-Series Tech 4 08-12-2010 08:26 AM
map sensor question duganator9 S-Series Tech 10 11-13-2007 01:13 AM
O2 Sensor question DeCaff2006 S-Series General 2 04-18-2006 07:10 PM
Sensor Question? Onewest Miscellaneous Tech 4 02-27-2003 11:37 AM


All times are GMT -4. The time now is 03:41 PM.

Advanced Forum Search | Advanced Photo Search


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
SaturnFans.com. The Saturn Enthusiasts Site.