stock 307

87cutlas · May 23rd, 2008, 09:00 AM

i have been doing some research on the 307 oldsmobiles that came in the g bodies and i have modified mine to be near the equivalent of the h. 0. and i was wondering how much horsepower the base 307's and the h. o. 307's came with?

just wonderin

Lady72nRob71 · May 23rd, 2008, 09:18 AM

The base 307 (VIN Y)put out a whopping 140hp and the HO put out 180hp.

The HO (VIN 9) had a different cam, EEPROM with different timing curves, duals, and I think the heads were different.

87cutlas · May 27th, 2008, 07:49 PM

thank you lady

joe_padavano · May 27th, 2008, 08:04 PM

I'll add that 140 HP for a VIN Y motor is probably being generous. Sad but true...

Redog · May 27th, 2008, 08:13 PM

The 307 Y motor in a Delta 88 ran an impressive 20.66 @ 64.66 miles per hour in the 1/4 mile

Of that 140, 90 goes to the wheels

88 coupe · May 28th, 2008, 01:38 AM

Quote:

Originally Posted by Lady72nRob71

........ duals ........

Dual outlets? Were duals ever offered on a 307?

Norm

Lady72nRob71 · May 28th, 2008, 06:25 AM

>>Were duals ever offered on a 307?

Yep, the VIN 9 engines came with dual outlet exhaust from the factory. While not a true dual setup, the Y pipe was bolted behind the cat converter. It had dual mufflers and resonators and one cat.
It was standard on the 442 and H/O in the mid 80's.

joe_padavano · May 28th, 2008, 11:13 AM

Quote:

Originally Posted by Lady72nRob71

>>Were duals ever offered on a 307?

Yep, the VIN 9 engines came with dual outlet exhaust from the factory. While not a true dual setup, the Y pipe was bolted behind the cat converter. It had dual mufflers and resonators and one cat.
It was standard on the 442 and H/O in the mid 80's.

Yes, but unfortunately that system still used the somewhat restrictive crossover under the oil pan and single pipe running from the RH exhaust manifold to the converter.

Olds64 · May 28th, 2008, 04:12 PM

Too bad the high performance motor for Olds during the 80s sucked so much. It would have been cool if Olds made an awsome car like the Buick GN in the 80s. I guess the 442 was OK, but it was definitely more show than go. I think I like 84 the best.

88 coupe · May 29th, 2008, 12:14 AM

Quote:

Originally Posted by Lady72nRob71

........ VIN 9 engines came with dual outlet exhaust from the factory .........

I was already aware that some 307s came with dual outlets.

Quote:

Originally Posted by Lady72nRob71

........ While not a true dual setup ........

Looks like the answer is, no, they did not come with dual exhausts.

Thanks.

Norm

May 23rd, 2008, 09:00 AM	#1 (permalink)
87cutlas stock so far Join Date: Jan 2008 Location: Omaha, NE Posts: 21	stock 307 i have been doing some research on the 307 oldsmobiles that came in the g bodies and i have modified mine to be near the equivalent of the h. 0. and i was wondering how much horsepower the base 307's and the h. o. 307's came with? just wonderin

May 23rd, 2008, 09:18 AM	#2 (permalink)
Lady72nRob71 Moderator Join Date: Feb 2008 Location: Plano, TX Posts: 1,916	The base 307 (VIN Y)put out a whopping 140hp and the HO put out 180hp. The HO (VIN 9) had a different cam, EEPROM with different timing curves, duals, and I think the heads were different. __________________ -Rob Young 1972 Cutlass Supreme Convertible (442 clone) -"Lady" (My mistress...) http://www.flickr.com/photos/robsalbum/sets/ 1986 Cutlass Supreme Coupe - "Pristine" 1978 Ford (Old Faithful) a.k.a. "the Tramp" 1997 Cadillac STS (for sale - too many cars!) 1999 Harley Davidson Sportster - "the Freedom Machine"

May 27th, 2008, 07:49 PM	#3 (permalink)
87cutlas stock so far Join Date: Jan 2008 Location: Omaha, NE Posts: 21	thank you lady __________________ crumpled cutlass

May 27th, 2008, 08:04 PM	#4 (permalink)
joe_padavano Super Moderator Join Date: Mar 2007 Location: Northern VA Posts: 4,396	I'll add that 140 HP for a VIN Y motor is probably being generous. Sad but true... __________________ Joe Padavano 64 Jetstar 88 Conv 66 442 L-69 Conv 68 W-30 69 H/O 69 442 70 W-30 72 442 84 Custom Cruiser 86 Caprice wagon (w/307 Olds)

May 27th, 2008, 08:13 PM	#5 (permalink)
Redog Alero Chapter Secretary Join Date: Aug 2006 Location: Newtown, PA Posts: 1,145	The 307 Y motor in a Delta 88 ran an impressive 20.66 @ 64.66 miles per hour in the 1/4 mile Of that 140, 90 goes to the wheels __________________ Me 2000 Alero running 14's 2005 Nissan Altima (her's) 1967 Olds 330 motor sitting on a stand 1985 Delta 88 w/1968 350 rocket ( MURDERED )

May 28th, 2008, 06:25 AM	#7 (permalink)
Lady72nRob71 Moderator Join Date: Feb 2008 Location: Plano, TX Posts: 1,916	>>Were duals ever offered on a 307? Yep, the VIN 9 engines came with dual outlet exhaust from the factory. While not a true dual setup, the Y pipe was bolted behind the cat converter. It had dual mufflers and resonators and one cat. It was standard on the 442 and H/O in the mid 80's. __________________ -Rob Young 1972 Cutlass Supreme Convertible (442 clone) -"Lady" (My mistress...) http://www.flickr.com/photos/robsalbum/sets/ 1986 Cutlass Supreme Coupe - "Pristine" 1978 Ford (Old Faithful) a.k.a. "the Tramp" 1997 Cadillac STS (for sale - too many cars!) 1999 Harley Davidson Sportster - "the Freedom Machine"

May 28th, 2008, 04:12 PM	#9 (permalink)
Olds64 Landyacht Club President Join Date: Jul 2007 Location: Lawton, OK Posts: 4,286	Too bad the high performance motor for Olds during the 80s sucked so much. It would have been cool if Olds made an awsome car like the Buick GN in the 80s. I guess the 442 was OK, but it was definitely more show than go. I think I like 84 the best. __________________ Ferris, my father loves this car more than life itself... Apparently, you don't understand! Ferris, he never drives it! He just rubs it with a diaper! Cameron Frye Ferris Bueller's Day Off 1986

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