 Performance advice |
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| 00r101 |
 Sep 16 2012, 11:30 AM
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#1
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Newbie  Group: Members Posts: 17 Joined: 24-May 12 From: United States Member No.: 14,476 Region Association: MidAtlantic Region  |
So I picked up a '74 914 1.8 for track days this spring. Good cage, gutted interior, Momo fiberglass shells, fiberglass front and rear hoods. Engine is stock other than a single 2bbl downdraft. Koni singles, bars and springs. Larger brakes front and rear. Stock exhaust manifolds into stainless heat exchangers and then single straight pipe.
Two track events this year, Summit Point Shenendoah and The Glen. Had a great time. car is well sorted handling wise but needs more power (don't we all :-) I have all fall and winter and would like 20+ more HP. Budget is limited but I want to build for the future so would like a phased approach. I am very interested in hearing your recommendations and experiences with various aftermarket carb setups, ignition setups, and exhaust. DO not have the funding this year to open up the engine so keep your ideas to bolton performance. TIA, Alan |
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| mrbubblehead |
Sep 16 2012, 08:34 PM
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#2
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Twodollardoug Group: Members Posts: 1,155 Joined: 17-December 10 From: calimesa ca. Member No.: 12,492 Region Association: Southern California |
dual carbs will make a big difference.
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| patrick3000 |
Sep 21 2012, 07:58 PM
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#3
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Member Group: Members Posts: 192 Joined: 19-July 06 From: Maryland Member No.: 6,468 |
QUOTE(mrbubblehead @ Sep 16 2012, 10:34 PM)  dual carbs will make a big difference. X2 Also it is much cheaper to lose weight than add HP. Strip the car of everything that is not needed and put the driver on a diet over the winter. |
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| SirAndy |
Sep 21 2012, 08:41 PM
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#4
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Resident German Group: Admin Posts: 41,623 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(patrick3000 @ Sep 21 2012, 06:58 PM) Also it is much cheaper to lose weight than add HP. Strip the car of everything that is not needed and put the driver on a diet over the winter. (IMG:style_emoticons/default/agree.gif) And without changing the cam, dual carbs won't get you anywhere near the +20HP you're looking for. (IMG:style_emoticons/default/shades.gif) |
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| brant |
Sep 22 2012, 09:47 AM
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#5
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914 Wizard Group: Members Posts: 11,622 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
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Is that the 75 exausy manifold?
New carbs and new exaust. Both will help a little now and a lot in the future |
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| piss'n914 |
Feb 3 2014, 01:31 PM
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#6
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Newbie Group: Members Posts: 10 Joined: 31-January 14 From: United States Member No.: 16,944 Region Association: Southern California |
Thats one thing that kinda sucks...is that it seems very hard to make big hp, with these engines. its not like hooking up a tuner, or CAI, catback or anything like that.
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| f1rocks |
Feb 3 2014, 01:57 PM
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#7
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F1rocks Group: Members Posts: 23 Joined: 13-January 14 From: Brentwood, Tennessee Member No.: 16,884 Region Association: South East States |
Better tires and suspension
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| Mblizzard |
Feb 3 2014, 03:35 PM
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#8
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
I have no track experience. I agree it is better and cheaper to lose weight than try to squeeze more HP out of the 1.7. I don't know if it is allowed and you have likely already done something but after removing the fuel tank recently from my car I was amazed at the weight of the thing. A smaller tank might be a way to lose weight? Just a thought.
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