TheSamba.com :: View topic - Vintage speed Abarth exhaust for new engine in early car

Sun May 25, 2025 7:56 pm

https://store.vintagespeed.com.tw/NARROWED-ABARTH-...p132825338
For All 1300c.c. ~ 1600c.c. Type 1 Beetle / Ghia.

My car and engine:
1745 cc engine 95-110 hp expected
1951 vw bug model made in February 1952.

My question is can I run this exhaust?
I like quiet will this be too loud?

Sun May 25, 2025 8:01 pm

Sun May 25, 2025 8:03 pm

Or is a sidewinder exh better?
Car will need preheat:

Mon May 26, 2025 2:29 pm

https://www.wolfsburgwest.com/cart/DetailsList.cfm?ID=113251055OK

Tue May 27, 2025 2:17 pm

So Abarth muffler only good to 1600 cc?

Tue May 27, 2025 7:06 pm

What's your engine specs details crank size, bore size , are you using dual carbs single port heads / dual port heads ...

Wed May 28, 2025 8:18 pm

Engine design based upon: John karsey/hot vw high mpg engine.

1745cc (76x85.5) (stroker pistons)with a CB performance cam similar to the 110. I have a stock weight flywheel. The engine is also set up for full filter flow with the Bob Hoover oil mods, with a type 4 cooler, 5.5" rods, demellow full circle race weight 76mm crank, Currently a gene burg 4 in one exhaust header with a vacume pipe mod for the centermount carb preheat, and a dual vac distrubitor and it's matching 37 picti 3 carb. I have a jag crank harmonic balancer pully like John Karcey (but with an alternator instead of a generator). the heads: vw of Mexico Dual port heads, ported and chambers volume matched, .041" deck and 8.5 to 9 ish compression. 3 angle valve seats heavy springs. Hd dual taper aluminum pushrods. CB performance center mount air intake with the “v” in the center. 68 oil bath intake with boudin tube.

Wed May 28, 2025 8:24 pm

76 with 5.5 rods which would make the engine wider than stock 1600cc ...problem is that these exhaust wouldn't be a straight on bolt on you would have to retro fit it to your wide engine if you did buy one of them ....

Thu May 29, 2025 8:50 am

VS exhausts have flange fittings that allow for adjustment to fit. Unless it's quite a bit wider, should be no probem to fit.

Thu May 29, 2025 4:59 pm

But would the exh choke the engine cause it’s too small for the engine?
I like the look so I am pondering.

I never liked how the dual muffler exh hangs out like an afterthought.

Thu May 29, 2025 9:11 pm

By this site the vintage speed should be fine for your build ..
https://vwparts.aircooled.net/Vintage-Speed-Abarth-Super-Flow-155-203-43451-p/155-203-43451.htm

Sat May 31, 2025 3:56 pm

Like it .. no heater boxes.
I’m in Chicago.. heat is a necessity.
Plus I have original heater boxes.

Sat May 31, 2025 8:31 pm

But before you buy make sure you have the correct rear apon last thing you want to do is purchase and it's not compatible with your rear apon and be upset and pissed off ...