Here's another possible idea for a GM V6 engine . Recently I came across an internet article talking about the GM V6 60* engines . All from the first Gen 2.8l eng on up till the present , or recently present , dohc V6's was the V6 that went into the original Cadillac CTS's which I believe were rated at least 250 hp .
Now my question is , is there anyone out there who has knowledge of the CTS engine , its design parameters and done any investigation into the possibility of its use in a Fiero ? From an engineering standpoint , is it possible ? Is anyone crazy enough to try this ? GM/Cadillac folks are no help .
The reason that I am thinking of this is I have a Caddy CTS 2003 model . Trade in value is at best $4-$6 K . The best part of that one is it has only 30K miles on it . In parts the car is more $$ value than as a whole car .
Does anyone have any input on this subject ? Any positive inputs would be greatly appreciated .
there was more than one V6 offered, either a high feature 2.8-3.6L, or the Saturn V6 in 2.6-3.2L no reason you couldn't do either, never seen the Saturn engine done...
Considering the CTS has always been a front engine-rear wheel drive car I would guess that the engines would have a bellhousing bolt pattern for a longitudinal transmission and would not mate to a FWD trans without an adapter.
Considering the CTS has always been a front engine-rear wheel drive car I would guess that the engines would have a bellhousing bolt pattern for a longitudinal transmission and would not mate to a FWD trans without an adapter.
the Saturn engine was used FWD and RWD, as was(is) the High Feature V6
This would be my "wet dream" swap, but the PCM is still largely an unknown in this community.
Bmwguru has pretty much completed a turbo 2.8 DOHC / six speed F40 manual swap from a Saab 9-3. It is essentially the same engine. He even used CTS sensors when he replaced some of his originals. He used the Saab PCM, and said that it was workable. The build thread is in The Construction Zone.
Edit - The HF V6 has a completely different tranny bolt pattern from any of our engines.
------------------ Raydar 88 Formula IMSA Fastback. 4.9, NVG T550 Praise the Lowered!
[This message has been edited by Raydar (edited 12-04-2014).]
Considering the CTS has always been a front engine-rear wheel drive car I would guess that the engines would have a bellhousing bolt pattern for a longitudinal transmission and would not mate to a FWD trans without an adapter.
The High Feature engines have their own bolt pattern, as do the Ecotec 4 cylinders, and the same pattern is used for both transverse and longitudinal applications in both cases.
The hard part with the High Feature engines is the only manual transmission ever offered in transverse form for that bell pattern, was the Saab F40, only available for a few years, only with the 2.8t, so they can be very expensive to find if you want a manual. Otherwise they were only offered with the 6 speed automatics in transverse form, which is fine if you want an automatic, but also presents additional challenges as well. They don't have the long snout like the older 4 speed transmissions did, so you can't just mount it in the same way that the 4t65e gets mounted when one gets swapped in with the 3800.
bmwguru has a 2.8t/F40 from a Saab in progress. I don't know how close he is to having it done. I haven't checked his thread in a while (or seen it pop to the top).
As for the 3.6 in the CTS specifically, they are known for having timing chain issues. I wouldn't straight up used one without giving it a decent refresh with timing chain. The LY7 was used in a huge number of cars and SUVs. They are very easy to find. They can be good engines, and would definitely be fun in a Fiero, but if you're new to swapping in engines, or don't have the time/money to do it (it will be an expensive swap, even if you already have the engine), I'd steer clear of it.
In addition to the 2.8/3.6 "high feature" V6s that we are all familar with, there's also a 3.2 liter V6 that was, IIRC, an Opel design.
Ah, indeed, the 2003 USDM CTS came with the 3.2 54-degree engine, which is not very desirable, and the High Feature engines didn't go in until 2004. It's also only 220 HP rather than the 250 the LY7 made.
The 54-degree engine might fit a little better in the Fiero compartment though, but there's much less in the way of aftermarket that can be had for them, and it might be more costly to do any repairs when the time comes.
bmwguru has a 2.8t/F40 from a Saab in progress. I don't know how close he is to having it done. I haven't checked his thread in a while (or seen it pop to the top).
I got it running and currently working out the bugs. I've been very busy with my shop's new location that I haven't had the free time to spend on it lately.
Stuff that I've been able to find seems to indicate that the LY7 uses the E67 PCM. Does yours use the same one? If not, can you share what it is?
Are you looking at CTS ECMs that lead you to the e67? The 05-07 CTS-V had the LS2 which was run by the e67 ECM.
The LY7 was also available in several versions worldwide. Some might have used the e67 ECM, but I wouldn't hedge the idea of performing a swap on that possibility, without definite proof.
I forget where I found it now, but that's what it seemed to indicate. (Was slightly ambiguous, IIRC, but it kind of leaned that way.) If Dave's had used the E67, that would have cemented it for me. Since it does not, I'll keep on poking around.
