Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Positive P on 18 January 2009, 23:47:00
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I'm trying to find someone who can steer me in the right direction.
I wanna make power,for my 3.0L but there's no help for it here in the states.
I see alot of nice/fast Omega's but what all can be done to it to make power?
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I'm trying to find someone who can steer me in the right direction.
I wanna make power,for my 3.0L but there's no help for it here in the states.
I see alot of nice/fast Omega's but what all can be done to it to make power?
We are slightly better off than over the pond as our units are different to yours with higher compression ratio so we are already past the 200bhp mark straight from the factory!
In our case an ecu chip upgarde can yield upto a 10% gain and with some light fettling even more can be sought.
Your best option would be to drop an LS2 or better in!
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I'm trying to find someone who can steer me in the right direction.
I wanna make power,for my 3.0L but there's no help for it here in the states.
I see alot of nice/fast Omega's but what all can be done to it to make power?
We are slightly better off than over the pond as our units are different to yours with higher compression ratio so we are already past the 200bhp mark straight from the factory!
In our case an ecu chip upgarde can yield upto a 10% gain and with some light fettling even more can be sought.
Your best option would be to drop an LS2 or better in!
And fuel economy? With the chip i mean.
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Who makes the ECU for you?
I can raise compression, maybe do euro-spec. ECU and wiring swap.
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Its a Bosch unit.
Compression change was achieved by fitting dished pistons on the Caterra lump
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What is stock compression on the Omega? Stock HP?
Are the Bosch ECU's plentiful in salvage yards over there?
How hard do you think it would be for me to find someone with a parts car to have the engine wiring and ecu?
Do any of you know anyone?
Got a pic of Omega ecu?
The only Bosch ecu controlled GM cars here that I could get an ecu for is the Saturn ecotec 2.2L.
The Catera, uses a Bosch Motronic ECU. Where would I find the chip, you guys use?
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10.8:1
211bhp
That's only about 10 more than your lower compression engine.
I'd guess that you'd just need to up the compression and then fit the Euro spec ECU to the see the benefits? Maybe a lot of other functions that operate via the ECU that differ on a Euro spec ECU though?
Here is a link to a little tuning overview of the X30XE engine: http://www.opelforum.si/index.php?showtopic=1785&mode=linear
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Anyone have a Euro-Spec ECU?
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The euro spec x30xe had a manual throttle, though, whereas, IIRC, the US spec had drive-by-wire so an ECU change would not be easy.
I don't believe the ECU would make much difference, TBH. The compression ratio is the main factor. As long as you feed it with high enough octane fuel that it doesn't knock retard it will work with the original ECU.
Kevin
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Actually, I don't have a catera, I have a pontiac fiero, the engine is from a '97 catera. which uses a manual tb. the tranny is from a saturn.
So I could use the euro-spec ecu.
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Would an ECU from a 3.0 be any use to you?
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Actually, I don't have a catera, I have a pontiac fiero, the engine is from a '97 catera. which uses a manual tb. the tranny is from a saturn.
So I could use the euro-spec ecu.
Sounds feasible then. Do you know what engine management system it uses? Non-DBW UK cars are Bosch Motronic 2.7.1. If the pinout is the same it should be a straight swap. And a UK tuning chip would plug straight in.
Does it have the same ancillaries? Multiram air intake, SAI, EGR? Might have to fool the ECU with some resistors if not all the actuators are present.
Kevin
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Actually, I don't have a catera, I have a pontiac fiero, the engine is from a '97 catera. which uses a manual tb. the tranny is from a saturn.
So I could use the euro-spec ecu.
Sounds feasible then. Do you know what engine management system it uses? Non-DBW UK cars are Bosch Motronic 2.7.1. If the pinout is the same it should be a straight swap. And a UK tuning chip would plug straight in.
Does it have the same ancillaries? Multiram air intake, SAI, EGR? Might have to fool the ECU with some resistors if not all the actuators are present.
Kevin
Here's a look at the Caddy setup,
(http://www.familycar.com/roadtests/cadillaccatera/Images/Engine.jpg)
Engine bay
(http://i272.photobucket.com/albums/jj186/positivep/4729_1.jpg)
ECU pic
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Actually, I don't have a catera, I have a pontiac fiero, the engine is from a '97 catera. which uses a manual tb. the tranny is from a saturn.
So I could use the euro-spec ecu.
Sounds feasible then. Do you know what engine management system it uses? Non-DBW UK cars are Bosch Motronic 2.7.1. If the pinout is the same it should be a straight swap. And a UK tuning chip would plug straight in.
Does it have the same ancillaries? Multiram air intake, SAI, EGR? Might have to fool the ECU with some resistors if not all the actuators are present.
Kevin
Here's a look at the Caddy setup,
(http://www.familycar.com/roadtests/cadillaccatera/Images/Engine.jpg)
Engine bay
(http://i272.photobucket.com/albums/jj186/positivep/4729_1.jpg)
ECU pic
Is this the same as euro-spec?
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Actually, I don't have a catera, I have a pontiac fiero, the engine is from a '97 catera. which uses a manual tb. the tranny is from a saturn.
So I could use the euro-spec ecu.
Sounds feasible then. Do you know what engine management system it uses? Non-DBW UK cars are Bosch Motronic 2.7.1. If the pinout is the same it should be a straight swap. And a UK tuning chip would plug straight in.
Does it have the same ancillaries? Multiram air intake, SAI, EGR? Might have to fool the ECU with some resistors if not all the actuators are present.
Kevin
I'm sure you meant 2.8.1 (earlier) and 2.8.3 (later) for 2.5 and 3.0 engines ::)
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Actually, I don't have a catera, I have a pontiac fiero, the engine is from a '97 catera. which uses a manual tb. the tranny is from a saturn.
So I could use the euro-spec ecu.
Sounds feasible then. Do you know what engine management system it uses? Non-DBW UK cars are Bosch Motronic 2.7.1. If the pinout is the same it should be a straight swap. And a UK tuning chip would plug straight in.
Does it have the same ancillaries? Multiram air intake, SAI, EGR? Might have to fool the ECU with some resistors if not all the actuators are present.
Kevin
Here's a look at the Caddy setup,
(http://www.familycar.com/roadtests/cadillaccatera/Images/Engine.jpg)
Engine bay
(http://i272.photobucket.com/albums/jj186/positivep/4729_1.jpg)
ECU pic
Is this the same as euro-spec?
That ECU looks totally different to my UK car (3.2 with DBW). The underbonnet view looks identical though. And yes, I did mean 2.8.1 / 3.
Kevin
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After doing some more research, I found that the US-spec ecu is designed to support OBD-ll , and coil-on-plug setup. Also it is designed to allow a very low rpm (450rpm range) why I have no idea.
I hope that with a little work and some R&D I can raise the compression, maybe open up the intake, add larger throttle body, maybe even port the heads a little. The US-spec is set between 9.8:1-10:1 compression where the Euro-spec is 10.8:1. I'm sure that makes alot of the difference. 180-190 bhp vs. 211 bhp. I'm gonna push for 11:1 on the compression. US-spec pistons may be the problem though. From what I'm told, they don't support anything more than 10:1 comp. The ecu will be a problem as well, being only designed for automatic transmission, I'm using a 5-speed manual. Also US-spec only supports electric throttle drive no cable. I'll figure that out.
Does anyone here know who builds the 5-speed tranny used in the FWD versions of the X30XE, or with the 2.5 or 3.2 Vectra?
Here they used a GETRAG.
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The UK spec ECUs can be configured for auto or manual transmission using Tech 2. Not sure if yours will be the same but probably worth a look.
Kevin
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Thanks Kevin!
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Here's a look at the Caddy setup,
(http://www.familycar.com/roadtests/cadillaccatera/Images/Engine.jpg)
Engine bay
(http://i272.photobucket.com/albums/jj186/positivep/4729_1.jpg)
ECU pic[/quote]
The car pictures is a 2000 or 2001
The ECU shown is the older 1997+1998 ECU. The 1999-2001 look different.
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After doing some more research, I found that the US-spec ecu is designed to support OBD-ll , and coil-on-plug setup. Also it is designed to allow a very low rpm (450rpm range) why I have no idea.
I hope that with a little work and some R&D I can raise the compression, maybe open up the intake, add larger throttle body, maybe even port the heads a little. The US-spec is set between 9.8:1-10:1 compression where the Euro-spec is 10.8:1. I'm sure that makes alot of the difference. 180-190 bhp vs. 211 bhp. I'm gonna push for 11:1 on the compression. US-spec pistons may be the problem though. From what I'm told, they don't support anything more than 10:1 comp. The ecu will be a problem as well, being only designed for automatic transmission, I'm using a 5-speed manual. Also US-spec only supports electric throttle drive no cable. I'll figure that out.
Does anyone here know who builds the 5-speed tranny used in the FWD versions of the X30XE, or with the 2.5 or 3.2 Vectra?
Here they used a GETRAG.
The compression on the European and North American engines is the same.
Mechanically both engines are identical as is the power. Though the NA is rated at 200, it is in fact 210 just as the European is rated. I dyno'd my car to confirm this.
The main difference between the two cars is that the NA car had OBD-II before the European cars. Europe required it on all cars by 2000 IIRC, in NA it was 1996.
Can a member in the UK confirm what was the first year that had OBD-2?
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OBD-2 will have come in here with DBW 2.6 and 3.2 engines...not sure if they came in 2000 or 2001...
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The UK X30XE was never OBDII compliant and they were all 10.8:1 compression ratio (the US cars have a slightly dished piston to lower the compressiong ratio)
The Y32SE (fitted from about 2001) was OBDII compliant and this has the lower 10:1 compression ration with drive by wire throttle and coil per plug setup.