GM HFV6 Thread

[T-Keith]

Originally Posted By: Spazdog
the 3.8s all got DIS, but it was that hopeless Magnavox system. They were about $130 and they were short-lived.


I've had several of these "hopeless" systems with over 200,000 miles, plus in 88 they fazed in a delco version, both worked great. GM also used these on the 2.5s, 2.8s, 3.1s and more in the late 80s. Honda and Toyota had distributors into the 90s.

 

[Spazdog]

Originally Posted By: T-Keith
Originally Posted By: Spazdog
the 3.8s all got DIS, but it was that hopeless Magnavox system. They were about $130 and they were short-lived.


I've had several of these "hopeless" systems with over 200,000 miles, plus in 88 they fazed in a delco version, both worked great. GM also used these on the 2.5s, 2.8s, 3.1s and more in the late 80s. Honda and Toyota had distributors into the 90s.


All I know is that I sold a lot more Magnavox control modules than Delco. Also, you could buy the coil packs individually on the Delco. The Magnavox was one big package.

 

[OVERKILL]

Originally Posted By: Spazdog
the 3.8s all got DIS, but it was that hopeless Magnavox system. They were about $130 and they were short-lived.

By 1984 the Civic had a 3spd automatic and by 1988 a 4spd

The Corvette's LT5 was engineered by Lotus and built by Mercury Marine

The DOHC Mustang Cobra made it's debut in 1996 with 305 hp. The '94-'95 Cobra used a 240hp 302 and the Cobra R used a 300 hp 351. Getting 305hp out of the 4.6 is impressive though considering a similar year Infiniti Q45 makes about 275 out of only 100cc less displacement.

Balance shafts were old news in the Mitsubishi 4G54. (1978 Sapporo/Challenger)

Ford's variable timing came initially courtesy of Mazda and/or Jaguar.

BMW and Audi copied Honda for torque vectoring AWD the basis of which was the torque transfer system in the '97 Prelude SH


Who mentioned the Cobra? I was speaking of the 32V 4.6L that came in the Mark VIII, which came out in 1993. This was the base for the engine that eventually ended up in the Cobra.

 

[OVERKILL]

Originally Posted By: Shannow
Originally Posted By: OVERK1LL
and variable valve timing is a technology that came about during the era of steam engines.


You're seriously joking here aren't you.



Nope, it really did, LOL! I'm not saying the implementation was the same (it obviously wasn't) but the general idea behind changing valve timing mechanically during operation was a steam-era idea.

Nothing is "new". Old ideas get revisited by engineers later on and they find a way to adapt it to their application. Often with great benefits.

 

[Spazdog]

Originally Posted By: OVERK1LL
Originally Posted By: Spazdog
the 3.8s all got DIS, but it was that hopeless Magnavox system. They were about $130 and they were short-lived.

By 1984 the Civic had a 3spd automatic and by 1988 a 4spd

The Corvette's LT5 was engineered by Lotus and built by Mercury Marine

The DOHC Mustang Cobra made it's debut in 1996 with 305 hp. The '94-'95 Cobra used a 240hp 302 and the Cobra R used a 300 hp 351. Getting 305hp out of the 4.6 is impressive though considering a similar year Infiniti Q45 makes about 275 out of only 100cc less displacement.

Balance shafts were old news in the Mitsubishi 4G54. (1978 Sapporo/Challenger)

Ford's variable timing came initially courtesy of Mazda and/or Jaguar.

BMW and Audi copied Honda for torque vectoring AWD the basis of which was the torque transfer system in the '97 Prelude SH


Who mentioned the Cobra? I was speaking of the 32V 4.6L that came in the Mark VIII, which came out in 1993. This was the base for the engine that eventually ended up in the Cobra.


The Intech 32v in the Mark VIII was closer to the Q45 in horsepower. About 275hp. The Cobra was the closest to the 320hp mark that was posted so I thought we were talking about that.
Both are better than the Lexus LS400 and SC400's 260 hp ...but then again they both have more than a half liter of displacement advantage.

Lincoln, Lexus, and Infiniti are way ahead of the Acura V8 though.

 

[OVERKILL]

Originally Posted By: Spazdog
Originally Posted By: OVERK1LL
Originally Posted By: Spazdog
the 3.8s all got DIS, but it was that hopeless Magnavox system. They were about $130 and they were short-lived.

By 1984 the Civic had a 3spd automatic and by 1988 a 4spd

The Corvette's LT5 was engineered by Lotus and built by Mercury Marine

The DOHC Mustang Cobra made it's debut in 1996 with 305 hp. The '94-'95 Cobra used a 240hp 302 and the Cobra R used a 300 hp 351. Getting 305hp out of the 4.6 is impressive though considering a similar year Infiniti Q45 makes about 275 out of only 100cc less displacement.

Balance shafts were old news in the Mitsubishi 4G54. (1978 Sapporo/Challenger)

Ford's variable timing came initially courtesy of Mazda and/or Jaguar.

BMW and Audi copied Honda for torque vectoring AWD the basis of which was the torque transfer system in the '97 Prelude SH


Who mentioned the Cobra? I was speaking of the 32V 4.6L that came in the Mark VIII, which came out in 1993. This was the base for the engine that eventually ended up in the Cobra.


The Intech 32v in the Mark VIII was closer to the Q45 in horsepower. About 275hp. The Cobra was the closest to the 320hp mark that was posted so I thought we were talking about that.
Both are better than the Lexus LS400 and SC400's 260 hp ...but then again they both have more than a half liter of displacement advantage.

Lincoln, Lexus, and Infiniti are way ahead of the Acura V8 though.

For some reason I thought the Intech was 305HP, the same as what the Cobra first had (which was then bumped up to 320 later). And IIRC, the differences between the two were few and far between.

I know the Teskid blocks from the Mark VIII are popular for aluminum 32V builds because of how strong they are.

I mentioned 320HP because that's what the engine eventually ended up making. I probably should have been clearer on that point, as I'm not sure what it made when it debuted, but the number you cited is likely correct.

 

[Spazdog]

Originally Posted By: OVERK1LL
I know the Teskid blocks from the Mark VIII are popular for aluminum 32V builds because of how strong they are.


The Teksid block's strength should not be a suprise. Teksid is a division of Fiat who is also the parent company of Ferarri.

I've gone way off track here though. I do know that Suzuki built a variant of the High Feature V6 for the last version of the XL7. That may have been the best version of the Theta chassis that nobody bought. (best until the 2010+ Equinox)