I have a question, which may have already been answered, I just couldn't find it in a search. what are the factors stopping someone from using as 3800 Supercharge on a 2.8 or 3.4? Please don't flame me if the answer is obvious, I'm not that big of a motorhead . TIA

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B2
86GT Project

from what i've read...and this does not pertain bolting patterns etc....but the boost would be the key problem I would imagine...from what i've read it's a cheap engine...most stock american engines were / are ( not so sure on the newer ones but the 80s / early 90s ones are ). Turbo might be simpler as well.

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In recent times, the custom aftermarket car/automobile roadwheel has become a status symbol. These wheels are often incorrectly referred to as "rims". The term "rim" is incorrect because the rim is only the outer portion of a wheel (where the tire is mounted )

It is possible to do a guy on v6z24 did it a few years back in a beretta he had a 3.1 blocked off the factory throttlebody and cut the plenum for the s/c he had damn good power out of it. There was only 1 problem. It would not fit under any hood even a 6in cowl wouldn't work so he cut out the s/c section out of his stock hood. Lookd very tacky. Anyhow in the 60 degree world if you are going to s/c any 2.8-3400 the best charger is a rotrex 14 or 15 it fits directly where the factory a/c compressor goes. (With some modification of course). I personally am putting a charger off a g60 corrado on my 3.1. Build. It is a major pia. Basically I have fabbed it to fit where the stock fiero alternator goes and relocated my alt to where the a/c compressor was. I busted 2 damn exhaust mani bolts off in my heads once I get them out and put the block together I will get some pics up. Only issue with the g60 charger is max flow is going to be around 500cfm. Which will give it a decent amount of power but nothing insane. My reasoning for doing it is just to be a 1 of a kind project

A supercharger on a 3.4L (P/R right?) will take lots of work to engineer and get working. Consider a turbo. Its less expensive, easier to install and the engine can make more horsepower than with a supercharger.

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quote Originally posted by Dennis LaGrua: A supercharger on a 3.4L (P/R right?) will take lots of work to engineer and get working. Consider a turbo. Its less expensive, easier to install and the engine can make more horsepower than with a supercharger.

I believe he meant the 3400sfi either way yes turbo is a bit cheaper but not nessicerily produce more power. Mars_man on v6z24 has a rotrex 15 on a 3400 in a 91z24. Maxxing out his 30 lb injectors is pushing 348whp and runs low 11.s. With some more mods underway he's shooting for 375. Most turbo setups on a 3400 don't push that much.

quote Originally posted by kikinz24: Mars_man on v6z24 has a rotrex 15 on a 3400 in a 91z24. Maxxing out his 30 lb injectors is pushing 348whp and runs low 11.s.

That's a centrifugal S/C - not an Eaton like the poster was asking about. Gets asked all the time....

Gonna have to do something like this https://www.fiero.nl/forum/A...040710-2-048334.html

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Yes I know it is a centrifugal charger in my first post I stated it can be done but not many have done it and would have major clearance issues. The centrifugal charger is the charger of "choice" when dealing with 60 degree engines. I was just pointing out the options toward a s/c for his application

Thanks guys, that pretty much answers my question. I was just curious and in the future I will probably go for the turbo option as I know ther are tons of threads on those applications. As always, I appreciate the inputs.

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Peace!!

B2
86GT Project

It all depends on if you want to keep your aircon, or if you want to spend the effort finding somewhere to fit one... but I'd look into one of these little beauties...



Toyota's SC14. It can be found on the 2.4L 2TZ-FZE in the Toyota Previa/Estima/Tarago or the 2.0L 1G-GZE in the Toyota MarkII/Chaser. It's a two-lobe rootes type positive displacement supercharger, fitted with an electronic clutch to allow it to be turned on and off. It's nearly as big as an M90 and traditionally installs roughly like an aircon compressor, just a little bigger. There's also the SC12 from the supercharged MR2s, which would possibly work alright on likes of the 2.8, a bit small for a 3.4 PR though.

Yeah, turbos are allegedly easier, but I much prefer the consistent power delivery of a supercharged drivetrain over the surging power of a turbocharger. And fuelling either is gonna be an interesting affair.

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quote Originally posted by Carcenomy: It all depends on if you want to keep your aircon, or if you want to spend the effort finding somewhere to fit one... but I'd look into one of these little beauties... Toyota's SC14. It can be found on the 2.4L 2TZ-FZE in the Toyota Previa/Estima/Tarago or the 2.0L 1G-GZE in the Toyota MarkII/Chaser. It's a two-lobe rootes type positive displacement supercharger, fitted with an electronic clutch to allow it to be turned on and off. It's nearly as big as an M90 and traditionally installs roughly like an aircon compressor, just a little bigger. There's also the SC12 from the supercharged MR2s, which would possibly work alright on likes of the 2.8, a bit small for a 3.4 PR though. Yeah, turbos are allegedly easier, but I much prefer the consistent power delivery of a supercharged drivetrain over the surging power of a turbocharger. And fuelling either is gonna be an interesting affair.

I agree to this hence my original reasoning to s/c the 3.1 power consistancy. Little tuerbo spool fast and lag off larger turbos lag then spool a s/c is power from the min you touch that pedal.