Horsepower increase

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donm
Patron 2018
Patron 2018
Posts: 294
Joined: Sun May 30, 2010 12:40 pm
Your car is a: 1980 spider [carb]
Location: Hamilton. MA

Horsepower increase

Post by donm »

Now that I've installed a DVEF on a single plane intake and swapped out the 4-1 exhaust and downpipe for a 4-2-1 set-up on my carbed '80, I was wondering if anyone knew the actual horsepower I've gained. The car is definately quicker but has anyone done any research on what the actual power increase is? Just curious. Is it 10? 20? 50??
1979 Spider
2001Saab SW
2004 Saab Aero
Life's too short to drive boring cars
narfire
Posts: 3959
Joined: Sat Dec 27, 2008 2:14 am
Your car is a: 1980 124 spider
Location: Naramata B.C.

Re: Horsepower increase

Post by narfire »

I'm going to guess 10 hp. Only real way is a dyno though. Here three runs on a chassis dyno is $90.00. When my car is back together I'll be taking it up and trying it out. I'm just guessing I might have 120 now after the mods.
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
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124ADDHE
Posts: 365
Joined: Tue Oct 19, 2010 11:19 pm
Your car is a: 1974 Spider Amalgamation with C40 Solex
Location: Salmon Arm, BC, Canada

Re: Horsepower increase

Post by 124ADDHE »

Chris, where's the local dyno?
Regards,
Keith Cox
1973 124 Spider
1973 John Deere 500c backhoe
1987 Jaguar VDP
2013 passat tdi
2015 cherokee
narfire
Posts: 3959
Joined: Sat Dec 27, 2008 2:14 am
Your car is a: 1980 124 spider
Location: Naramata B.C.

Re: Horsepower increase

Post by narfire »

There is one if not two in Kelowna. Reading up on the type they have, it does not show true? HP but is used mostly for baseline and then tweek and run again to see if any improvement. That was what I was told anyway. There are several in the the Fraser valley as well.
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
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