Hi!
The euro spec Volvo engine of the era is rated at 156 or 160 horsepower (sources vary).
What exactly is different?
Cams? Exhaust? CR?
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Posts: 64
Hi!
The euro spec Volvo engine of the era is rated at 156 or 160 horsepower (sources vary).
What exactly is different?
Cams? Exhaust? CR?
Sent from my iPhone using Tapatalk
Location: CLE/PHX
Posts: 2,592
My VIN: 5646,5080, 5880, 10234, 3639, 2518, 10586, 1538
Mostly exhaust system. Cam profiles between 3/f variations are nominal on power gain. Timing and fuel tweaks along with exhaust rework makes up the difference.
www.deloreanindustries.com Every Detail Matters
Location: Northern NJ
Posts: 8,581
My VIN: 10757 1st place Concourse 1998
The exhaust system on a stock Delorean PRV is awful from a design standpoint. By improving the exhaust system you can make the engine breath a LOT better gaining a good amount of HP before you do any cam work or modifying the induction system. You have one bank of cylinders feeding into the other before both go through the one convertor and muffler. The advance curve for the distributor was never optimized for the Delorean. In fact there is no difference between the auto and the 5-speed! There is a lot of potential there too if you can tweak it. Once you get that done and the motor breathing better with "hotter" cams, some tweaks to the fuel system will provide even more power. This is pretty much the path DMC took with what they call the Stage I and Stage II. From all of the claimed improvement just from the exhaust is some measure of how bad the OEM design really is! Other "Hot Rodder" techniques can also help to improve things a little like porting and polishing the heads, gasket matching, balancing the CC's of each cylinder, blue-printing and balancing, etc. Next step is going full EFI to fine tune things for optimal power and finally positive induction (turbos) with forged pistons. Now your power is up to where you must upgrade the transmission to a single piece input shaft. Each step on this path is expensive but each one leads to the next one in a logical order without "wasting" any parts during subsequent upgrades.
Speed costs money, "How fast do you want to go"!
David Teitelbaum
Location: Surrey, United Kingdom
Posts: 181
The B28E variant of the PRV as fitted in the european Volvos use higher compression pistons, different model ignition distributor (and different timing), different fuel distributor with larger venturi and different CPR (there is no Lambda system on the european Volvos).Originally Posted by Gruffalo
Posts: 64
I just got one of those Volvo engines for literally free. Haven't had the opportunity to get a proper look at it yet, but hopefully there are parts on it that can be used to my benefit.
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Location: Florida: Pinellas County
Posts: 2,110
My VIN: 5003 Never placed Concourse
Club(s): (DCF)
The exhaust ports suck, at least on the B280F!
-----Dan B.
Location: Central Cali
Posts: 302
My VIN: 5087
It's my understanding that just eliminating the stock cat with a straight pipe (available...may not be legal in your area) helps the most. Not sure of the exact gains though.
Location: Lansing, MI
Posts: 490
My VIN: 04194: 5-Speed, Black Int, 79 Peugeot 604 Manifold, 05052: 5-Speed, Gray Int, 78 Peugeot 604 manifol
Wow! Great find! How / where did you score that engine? I'm guessing that you're on the other side of the pond?
Andrew
4194
5052
Andrew
4194 Since 7/98
5052 Since 7/14
1972 Buick Riviera
1974 Bricklin SV-1 177
1982 AMC Eagle SX/4 (4.2 I6, 4 Speed)
1983 Pontiac Trans Am (Knight Rider Conversion in progress)
1985 Oldsmobile Toronado (daily driver)
Solex carb and antenna television guru.
"My carbon footprint is bigger than yours!" :-)
Location: Lansing, MI
Posts: 490
My VIN: 04194: 5-Speed, Black Int, 79 Peugeot 604 Manifold, 05052: 5-Speed, Gray Int, 78 Peugeot 604 manifol
The cat and the stock muffler provide a lot of restriction. Thus, speaking hypothetically of course, replacing the cat with a test pipe and a less restrictive muffler will provide a nice improvement in performance.
Andrew
4194
5052
Andrew
4194 Since 7/98
5052 Since 7/14
1972 Buick Riviera
1974 Bricklin SV-1 177
1982 AMC Eagle SX/4 (4.2 I6, 4 Speed)
1983 Pontiac Trans Am (Knight Rider Conversion in progress)
1985 Oldsmobile Toronado (daily driver)
Solex carb and antenna television guru.
"My carbon footprint is bigger than yours!" :-)
Posts: 64
Correct, old Volvos are plentiful. The engine is in an unknown condition, has been sitting for many years, but came with everything except the distributor.
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