SHO v 8 in another vehicle

[sgs97sho]

I'm sure one of you has done this or something similar. However i will ask the question.

Has anyone put this 3.4 v 8 in any other vehicle?

I was thinking in an older body style Rx 7 with modern day 6 speen tranny. V 8 sound but with the weight of a small 6. Plus it would go like **** !!!!!

just a thought.

 

[wuzzzer]

It would be a unique installation, but in my opinion it wouldn't be worth the pain. 235hp isn't that much power even in a lightweight vehicle. And with virtually no aftermarket for these engines, well, have fun if you ever want to modify it.
Would be weird to hear a V8 rumble from an RX-7 though!

 

[sgs97sho]

prob not worth the pain but i was thinking headers,K and N modified air box and maybe high perf cams, thinking about 285-300 HP. Then maybe ??????????????

who knows ?? just a thought. i wouldn't do it unless i had money and time to burn. conceptually i think it would be cool though because i love that little V 8 in my car.

 

[Mr. SHO]

prob not worth the pain but i was thinking headers,K and N modified air box and maybe high perf cams, thinking about 285-300 HP. Then maybe ??????????????

who knows ?? just a thought. i wouldn't do it unless i had money and time to burn. conceptually i think it would be cool though because i love that little V 8 in my car.

You have MUCH to learn about the V8 SHO! :laugh_ti:

Headers? $$$$ (custom only, and negligible gains at that)
K&N modified airbox? NO GAIN.
High performance cams? You can move the HP and TQ peaks around, but you won't be putting any more "area under the curve" which is what improves performance.

285HP n/a is a pipe dream unless you have thousands of dollars to spend. And if you had that much money, you could make 2-3 times as much power by simply choosing a different motor to build up.

 

[sgs97sho]

I have nothing to learn. I wouldn't waste my money modifying my car it's worth a 1000.00 max anyways. It was just a thought and i was guessing @ HP gain.

 

[Mr. SHO]

I'm just saying, mods do not exist for this motor. If you wanted a motor to use in stock form, with a decent power-to-weight ratio, the 3.4L V8 would be a contender. But mods... well, we don't get any breaks there.

 

[3.8Lwagon]

does the Rx7 have a bigger engine bay? all HP needs can be solved with boost

 

[MotorMouth]

How older style, FD3 mabyee, or older? The 93 to 95's are allready 255 hp with the turbo motor, er.... I mean twin sequential turbo motor . Besides there are many kits out there for V8 conversions, the LS1 comes to mind. Cheep (compared to a SHO motor), very responsive to mods and lots of mods available.

Don't get me wrong a SHO motor in an RX7 would be very cool and very exclusive but as mentioned above very expensive and time consuming.

 

[hoboprodigy-]

I really hate how you guys shoot down fun ideas because it wouldn't be "cost-effective."

Do you ever consider that people do strange things like this just for the originality, and the experience? just to see if it can be done? just for ***** and grins?

If someone with a crazy idea like was worried about the cost, they would a) BUY A DIFFERENT CAR TO MODIFY or b) they have plenty of money and aren't worried about the cost.

Sorry for flying off the handle.

 

[Mr. SHO]

I really hate how you guys shoot down fun ideas because it wouldn't be "cost-effective."

Do you ever consider that people do strange things like this just for the originality, and the experience? just to see if it can be done? just for ***** and grins?

If someone with a crazy idea like was worried about the cost, they would a) BUY A DIFFERENT CAR TO MODIFY or b) they have plenty of money and aren't worried about the cost.

Sorry for flying off the handle.

Yeah, and the people that actually do that stuff don't sit around shooting the shit on some SHO internet forum. Sorry, but that's the truth.

 

[ManySHOs]

You have MUCH to learn about the V8 SHO! :laugh_ti:

Headers? $$$$ (custom only, and negligible gains at that)
K&N modified airbox? NO GAIN.
High performance cams? You can move the HP and TQ peaks around, but you won't be putting any more "area under the curve" which is what improves performance.

285HP n/a is a pipe dream unless you have thousands of dollars to spend. And if you had that much money, you could make 2-3 times as much power by simply choosing a different motor to build up.

If anyone is going to transplant an engine into a car that it didn't come with they will need custom exhaust (and possibly headers) to begin with. Even if headers were marketed heavily for the G3 they wouldn't fit an RX7 in a north south configuration so your point is null. Anyone can have custom exhaust work done; a lot of the parts on my car aren't available as mods from any SHO vendors out there.

Headers will give gains if they are designed properly.

Keep in mind that there's someone on this forum with twin SHO engines in a Topaz. Obviously none of the parts were available or were cheap. How can you presume to know how much money he has or how much he is willing to spend?


Ian

 

[hoboprodigy-]

Yeah, and the people that actually do that stuff don't sit around shooting the shit on some SHO internet forum. Sorry, but that's the truth.

I don't have the technical prowess to even begin such a project. It's just something I've noticed around the SHO and Taurus boards. Granted, you are right, the guy that asks "CAN I PUT A V10 IN MY TAURUS?" probably isn't the one doing it, but even the guys that ask about practical things get shot down. >:/

 

[Rubix]

well, -anything- is -practical-

 

[somedude_001]

You have MUCH to learn about the V8 SHO!

Headers? $$$$ (custom only, and negligible gains at that)
K&N modified airbox? NO GAIN.
High performance cams? You can move the HP and TQ peaks around, but you won't be putting any more "area under the curve" which is what improves performance.

285HP n/a is a pipe dream unless you have thousands of dollars to spend. And if you had that much money, you could make 2-3 times as much power by simply choosing a different motor to build up.

I swear everytime I start browsing shoforum somebody says somehting like that and it agervates the **** out of me, when I was trying to start devlopment on G2 headers for the ATX I talked to a LOT of poeple with headers to try and get dementions, gains and all that jazz and I came across 2 people with custom headers on their G3s and they said they gains were very noticable and that the car pulls much harder up top, and on the cam comment how would you know? you ever drive in a cammed G3? it seems as though the entire field of cam devlopment disagrees with you, by that comment people are going to assume if they get +20 or +40 cams they will not actually gain any power just move it around i'm sorry but I laugh in your face.

if 10 people were willing to put up some money to get cams or headers devloped you would have them in the community but because everyone has the mind set "oh there are no gains to be had there" you don't have the devlopment of parts.

-have a nice day

 

[Mr. SHO]

Headers will give gains if they are designed properly.

I'm not just arbitrarily saying "don't even try" just to be the VOD. My comments are based on observations of avenues that have been explored by V8SHOers in search of performance gains. My comments aren't based on headers in general, but rather on the headers that have been tried on the V8SHO. There have been at least two seperate designs tried (maybe more?) on the V8SHO and they didn't do much for actual performance. Of course in a longitudinal orientation you'd have more options for improvements in shape and length, but it has been noted that the factory exhaust is not really a shortcoming on these cars, so the gains would still be dubious. Could you get another 20HP from an idealized exhaust? Sure, that shouldn't be too hard. Would it give you a good usable torque curve? Maybe, but so far that hasn't been the case. Like I have said, moving the engine into another car opens up lots of options, but I wouldn't say anything is guaranteed.

The biggest problem that haunts the V8SHO is that the engineers did do a pretty good job tweaking out a good usable torque curve, given the design constraints. I believe if you really want to see a spike in power or torque, the first place you should look is to the intake setup. The LIM and runners are a comprimised design. If Yamaha had their way, we'd have true secondary runners atop this engine like the V6, but there isn't much room in the Taurus engine bay. Now if you transplant this engine to a different car (or even use a cowl hood on the Taurus) suddenly you have options. If money and time are at your disposal, I do think you could boost the performance of this engine considerably by fixing the intake design.

Now in 1995 during the final design stages, the V8SHO engine didn't have much competition in terms of performance-to-weight ratio at this price point, so it was pretty spectacular. For a variety of reasons, this was a low-production engine, and for one particular reason, a whole bunch of them went to an early grave. So there aren't too many left.

On the other hand, there are literally hundreds of thousands of engine built since then from various manufacturers that have comparable performance and weight. Many of them have aftermarket, off the shelf modifications available. You might even find some of these engines in great running condition in junkyards for fairly cheap, which would be a very slim chance for the V8SHO.

The comment about cams comes from cam manufacturers who said the design was "maxed out" for usable power. I think it may be possible to get gains there, and I'd love to see it happen. I'm just delivering a message from the experts who told us not to bother. Maybe their comment was made because they just didn't see any profit coming from this, so they wanted to get us off their backs. I don't know for sure.

 

[chrome_rust]

If there were cams avaiable, then i would have a set.... if their were headers i would have a set.

 

[Ian Macoomb]

I came across 2 people with custom headers on their G3s and they said they gains were very noticable and that the car pulls much harder up top, and on the cam comment how would you know?

people are going to assume if they get +20 or +40 cams they will not actually gain any power just move it around

Who are those two people? I only know of one set of headers and Doug Lewis has got them.

I read a book by Smokey Unnick a couple years ago and he said that headers are only good for optimizing power in a small rpm range (1000 rpm IIRC). I think that the headers are going to comprise power elsewhere. With an engine with a wide rpm range and an automatic that isn't a good idea.

Cams are the same thing, you can make more power by shifting the torque curve but you'll lose low end power. I'm not willing to give away any more low end. It's something that this car lacks.

 

[lancSHO]

If I was to transplant......wrecked ZX2 + V8 SHO engine = MR8; ZX8, ZX2/8? I can get a wrecked Z for dirt cheap too, but that doesn't mean I'm taking on the project....yet.

SHOgun version 2.0?

 

[Twisted99]

When I was into Merkur Xr4ti's I ran across a kit for the install of a V-6 SHO into an Xr4ti. There were a couple around. The hot swap was a twin turbo 300zx....It was called Scorch. An article in one of the mags had it ripping up several high dollar speed demons.

 

[Mocha91SHO]

Okay now don't get me wrong I LOVE my 3.4 but throw a 3.2 and a T5 Mustang 5-speed tranny in an early RX-7 and THAT my friends would be AWESOME! and it wouldn't be as hard as doing a 3.4 to RWD conversion. In fact I was at a car show two years ago and saw a 41 Ford pickup street rod with a SHO V6 in it that started my love for SHO's.