Comments on: Saab 9-4x Engine specs posted in comments

By: turbin

turbin — Wed, 28 May 2008 00:06:47 +0000

Albert is right, even the Caddy 3.6DI engine offers only 370Nm of torque. The VW 3.2DI offers 320Nm. Would have to be something incredibly special to offer 350Nm from 3l.

By: NineTwoX

NineTwoX — Tue, 27 May 2008 19:23:04 +0000

If we look at the LLT, 304HP & 274ft-lb tq from a 3.6L. This engine offers ~84hp/L and ~102Nm/L.

By: albert

albert — Tue, 27 May 2008 19:05:39 +0000

There is talk about a non-turbo V6, but the quoted output for the 3.0 liter doesn’t match with a non-turbo. There is no bread and butter non-turbo with more than 100 Nm/liter. And the best standard production engines come to 85 hp/liter. So either this non-turbo 3.0l V6 would have something around 225 – 250 hp and 285 Nm or with 260 hp/350 Nm it would be a lpt.

By: NineTwoX

NineTwoX — Tue, 27 May 2008 18:43:21 +0000

The Rav4′s V6 engine is a 3.5L engine with direct injection and VVT-i but only has a 5spd automatic.

If the 9-4X does come with a 3.0L engine that has direct injection, CVVT, and a 6 spd, imo, it should offer similiar (or slightly better) fuel economy to the Rav4.

By: triple

triple — Tue, 27 May 2008 17:41:26 +0000

I love the looks of all RDX, Vue, or Tiguan , but just can’t see getting rid of my Pathfinder to lose cargo room and offroad-ability for about the same MPG.

If carrying cargo is priority 1, the compact ute’s are lacking. If style is #1, then that makes up for it. if MPG is #1, dead tie. I dunno. When the RAV4 can get mid 20′s all day long with a NA V6, somethings not quite right. If the 9-4 doesn’t compare to those #’s, it won’t be on my list.

By: NineTwoX

NineTwoX — Tue, 27 May 2008 17:21:32 +0000

Bernard – The RDX is rated at 17mpg city and 22mpg hwy. The current Saturn Vue with the LY7 gets 16mpg city and 22mph hwy. I don’t see any significant difference between the two.

By: NineTwoX

NineTwoX — Tue, 27 May 2008 17:12:12 +0000

Hopefully this new 3L engine is a DI engine and will get equal or better fuel economy than the current 3.5/3.6L offered in GM’s variants.

Now, I wonder what kind of transmission choices we’ll get.

By: Bernard

Bernard — Tue, 27 May 2008 17:01:40 +0000

One of the ironies here is that Acura and VW are both offering turbo 4′s in their competitive SUV’s (RDX and Tiguan).

This means that GM is getting out of the small turbocharged engine game at exactly the same time that their strongest competition is seeing the light.

I wonder how many sales Saab will lose because the competition offers similar performance and better fuel economy (using technology pioneered by Saab)? It boggles the mind…

By: Tedjs

Tedjs — Tue, 27 May 2008 16:51:36 +0000

LY7 is the correct RPO code (regular production option for building the car if you do not know what that means) for the port injected 3.6L V6 engine. GM uses it in a lot of vehicles now that are sold in here.

The LLT is the direct injected version of the 3.6L V6 that is used in Cadillac CTS and STS. We should see this engine bolted in the new two-mode hybrid Saturn VUE this fall here in the United States.

Cadillac had a 2.8L normally aspirated version of the high feature V6 in the CTS a few years ago – although dealers found most buyers opted for the higher output unit. Recent gas price changes may encourage some customers to consider a smaller displacement engine.

The 2.8L version used in the 9-3 is not completely identical to the 3.6L version. One of the most significant differences is the cylinder heads are cast out of 356T-6 aluminum which has superior heat dissipation characteristics and has better resistance to distortion then the 319 cast aluminum used in the 3.6L variant. Throw in an oil cooler for good measure as well – and the 2.8L does call for a higher quality engine oil over the 3.6L version – something I still cannot get a straight answer on from some friends at GM.

Both engines are now managed by a Bosch ME9 controller, which has some really innovative diagnostic capabilities in terms of allowing the technician to analyze airflow deviation data – critical for proper fuel calculation. The first time I saw this was in a Saab Trionic system so that is now making its way into more vehicles. Kind of cool to see GM using Saab technology throughout the brand – although I would agree we do not want to see GM pick Saab dry.

By: NineTwoX

NineTwoX — Tue, 27 May 2008 16:31:56 +0000

Sorry, I did mean the LY7.

The 3.0L V6 seems out of characteristic for the BRX since the Provoq was showcased as a plug-in-hybrid vehicle. However, the 9-4X was showcased as a 2.0L bio-powered vehicle and look where it possibly might end up.

As long as the new 3.0L engine stays in GM’s luxury segment and not wind up in their Vue/GM/Pontiac/Chevy equivalents, then I would be satisfied.