Difference between 73/74 & 75/75 2.0? |
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Difference between 73/74 & 75/75 2.0? |
KenH |
Feb 25 2005, 12:50 AM
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#1
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Senior Member Group: Members Posts: 680 Joined: 16-January 03 From: Gilroy, CA Member No.: 156 |
The new GGR Points Classification System seperates the 73/74 & 75/75 2.0s.
They say: The '73-'74s have a 21.4 lb/hp ratio and The '75-'76s have a 26.8 lb/hp ratio. I cannot find any difference in the books I have. Is there a difference between the two ?? If so what publication is in?? Thanks, Ken |
nebreitling |
Feb 25 2005, 01:02 AM
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#2
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Member Emeritus Group: Members Posts: 3,314 Joined: 26-March 03 From: San Francisco Member No.: 478 |
whoa! you're right... this is new, why did they pop this now?
21.4 vs 26.8 seems a little too far spread even after the smog equipment, poor exhaust, and extra heavy bumpers.... guess it's time to reclassify the car.. |
nebreitling |
Feb 25 2005, 01:06 AM
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#3
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Member Emeritus Group: Members Posts: 3,314 Joined: 26-March 03 From: San Francisco Member No.: 478 |
looks like it's just a difference in TT points -- not AX.
http://sandbox.visualproduce.com/rulcomm_c...b/cars_list.php |
Reiche |
Feb 25 2005, 01:08 AM
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#4
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Member Group: Members Posts: 169 Joined: 13-October 04 From: Vista, CA Member No.: 2,934 |
The '73-'74 2.0 made 95HP to the '75-'76 88HP. As for the weight difference, the '75-'76 model had the much heavier bumpers and smoggy stuff. Calculates to 2033 lbs. for the '73-'74, 2358 lbs. for the '75-'76. Seems a tad high to me for the late model, but I've ever weighed one.
Oops. Cross post |
skline |
Feb 25 2005, 02:22 AM
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#5
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Born to Drive Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California |
That seems backwards to me, the early had more power and should be higher than the 75/76. Something doesnt seem right.
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redshift |
Feb 25 2005, 02:32 AM
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#6
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
What? Yes.
The ugly new one sucks, yes. M |
Bleyseng |
Feb 25 2005, 08:53 AM
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#7
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
The late ones have about 85lbs in 5 mph bumpers and the he's are heavier but 325lb difference, nah. I weighed mine on a truck scale with gas and it was in the 22xx range.
Its lighter now with the early bumpers, and SSI he's and Bursch muffler. Thats right, the banana oem muffler weight atleast 200lbs! Geoff |
dmenche914 |
Feb 25 2005, 09:58 AM
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#8
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Senior Member Group: Members Posts: 1,212 Joined: 27-February 03 From: California Member No.: 366 |
what year did they add side impact door protection? It adds my guess of close to 40-50 lbs per door, them suckers are much heavier than the early doors.
So what year did they make the side impact change? |
skline |
Feb 25 2005, 10:04 AM
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#9
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Born to Drive Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California |
That was added mid 73 to comply with saftey standards in the US.
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Rhodes71/914 |
Feb 25 2005, 10:05 AM
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#10
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Glacier Group: Members Posts: 1,374 Joined: 8-August 04 From: End of the Road, Alaska Member No.: 2,482 |
Dr 914 says 73 was the first year of the side impact doors making them more than twice as heavy, USA only. They also had the 911 style window regulator. |
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Bleyseng |
Feb 25 2005, 10:10 AM
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#11
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
It was mid 73. I have seen early 73's with early doors early regulators. Early doors and late regulators. Late doors and late regulators. They just grabbed whatever parts were there and stuck them on at Karmann using up old stock, heck why waste it.
Geoff |
914ghost |
Feb 25 2005, 10:30 AM
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#12
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BOB Group: Members Posts: 406 Joined: 25-November 03 From: Wenatchee Washington Member No.: 1,387 |
So, where's the HP difference?
Just the SMOG crap and a worse flowing exhaust? 7hp in a 914 is noticable but not a big fat deal really. I just bought a 76' 2.0 and was wondering this same thing. Bob O |
Root_Werks |
Feb 25 2005, 10:34 AM
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#13
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Village Idiot Group: Members Posts: 8,315 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
The 914 I have now is a 10/72 car sold as a 73' of course. It has late regulators and no side beems. I haven't wieghed it, but would like to, just for reference.
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Rhodes71/914 |
Feb 25 2005, 10:38 AM
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#14
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Glacier Group: Members Posts: 1,374 Joined: 8-August 04 From: End of the Road, Alaska Member No.: 2,482 |
Ok I guess I should have been more specific how about early-73 starting with vin #4732900.
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Bleyseng |
Feb 25 2005, 10:44 AM
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#15
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Whats its VIN? |
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MarkV |
Feb 25 2005, 11:05 AM
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#16
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Fear the Jack Stands Group: Members Posts: 1,493 Joined: 15-January 03 From: Sunny Tucson, AZ Member No.: 154 Region Association: None |
I have 4732906003 and it has late regulators and no side beams.
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MarkG |
Feb 25 2005, 12:33 PM
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#17
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Member Group: Members Posts: 314 Joined: 24-May 04 From: Colorado Springs Member No.: 2,102 |
Is it possible/how difficult to remove the side beams?
I have a '76, plan on FG bumpers and early exhaust. Any additional weight savings has to be good....... |
Dave_Darling |
Feb 25 2005, 01:30 PM
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#18
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914 Idiot Group: Members Posts: 14,981 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Something isn't right--your understanding of ratios. The stated ratio is lbs/hp, not hp/lb. Higher, in this case, is worse. You can cut the door beams out of the later doors if you can get your angle grinder inside the door. The only ones I've seen had already had the door webbing gutted; I don't think the window mechanisms were in there either. --DD |
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Cap'n Krusty |
Feb 25 2005, 01:36 PM
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#19
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
I don't have a door here to look at, but how much could those flimsy little bars weigh? And (again) we run into insurance liability issues .................................... The Cap'n
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KenH |
Feb 25 2005, 04:24 PM
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#20
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Senior Member Group: Members Posts: 680 Joined: 16-January 03 From: Gilroy, CA Member No.: 156 |
Dave,
The email I got from the rules guy is "lb/hp". I do not know where he got his info. I was hoping somebody had Porsche documentation as to what the differences are. Ken |
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