Saturn Sky Forum banner

1 - 20 of 24 Posts

·
Registered
Joined
·
37 Posts
Discussion Starter #1
Has anyone converted their RedLine to accept a Buick/Olds aluminum 215ci? Any issues with the engine mounts and mating the gearbox or auto transmission? Considering the low weight and torque/power potential of the 215ci one would think it would be a preferable V8 conversion. Thoughts anyone? Thx.
 

·
Super Moderator
Joined
·
5,926 Posts
I haven't heard of it being done, and I have to ask why you would do it, other than to be able to say that you had.
 

·
Registered
Joined
·
1,096 Posts
same question as John. Why, isnt 160 fast enough? Or you just got money to burn?
 

·
Registered
Joined
·
2,392 Posts
same question as John. Why, isnt 160 fast enough? Or you just got money to burn?
A stock engine won't get you to anywhere near 160.

Converts with the rear wing, about 143 mph (according to a GM engineer) and the coupe 147-148. This will vary with altitude, temperature etc.

NA = 122/123 mph.

The 215 swap into a Kappa is a foolish suggestion. And I'm not saying that to be offensive - it is descriptive. It has far less power than even an NA engine and is a 1960 design far inferior to the original engines. It makes no sense at all any way you look at it.
 

·
Registered
Joined
·
1,015 Posts
A stock engine won't get you to anywhere near 160.
I don't usually drive this car beyond 180km/h, but I have had my Redline with just the Trifecta tune to somewhere just north of 250km/h (155mph) once. Perhaps there was a tail wind or downhill grade helping it along, but it can do it.
 

·
Registered
Joined
·
2,392 Posts
Of course - you added around 40+ bhp with that tune and that will be reflected in terminal velocity. Stick an LS7 in and it will go up even more. The figures I quoted were for stock NA and GXP, from a GM engineer based on GMs own testing.
 

·
Registered
Joined
·
37 Posts
Discussion Starter #8
To all my fellow Sky Dudes, thanks for the feedback. It’s not necessarily bhp I’m looking at but ft/lbs. Don’t underrate the lightness, and tuning and upgrade capabilities of the 215cc V8 which eventually became the Rover/Range Rover V8 etc, looking at 375 ft/lbs in stock form v Sky RL’s 260 ft/lbs in stock form. Not mention 518 bhp in forced air form. I once placed a 215ci into an MGB. Nothing could touch it. Still, my inquiry was had anyone done it to a Sky. From the answers I conclude ~ no.
Thx lads.
 

·
Registered
Joined
·
2,392 Posts
The 215 put out 150 bhp and 220 Tq when released. Those are gross figures. They equate to 110 bhp (net) and 170 Tq net.

Are you saying that those figures compare well to the stock GXP outputs of 260 bhp/260 Tq? Or are you using '215' incorrectly to refer to the later larger displacement Rover versions?

And in regard to the MGB with a 215 in it, I run an MG with a 3.4 fuel injected GM V6 and it runs very nicely against a hopped up 215 powered one. They are about equal. I have about 200 bhp in my car. As far as nothing else being able to touch the MGB, try a small block Chev or Ford engines MGB - they regularly leave the Rover engined versions in the dust.

PS - my Solstice runs 375 bhp/375 Tq and gets 30 mpg. It is a very mild tune. You can easily get between 400 and 500 bhp out of the LNF should you want to. Without sticking some dinosaur engine in it.
 

·
Registered
Joined
·
439 Posts
A stock engine won't get you to anywhere near 160.

Converts with the rear wing, about 143 mph (according to a GM engineer) and the coupe 147-148. This will vary with altitude, temperature etc.

NA = 122/123 mph.

The 215 swap into a Kappa is a foolish suggestion. And I'm not saying that to be offensive - it is descriptive. It has far less power than even an NA engine and is a 1960 design far inferior to the original engines. It makes no sense at all any way you look at it.
Glad to know that what I posted on Facebook was correct. There's one guy over there boasting he's been to 210mph with his LS3 conversion.....I just laughed and said "was that a misprint? Did you mean kph??" And another boasted he'd seen 175mph in his 2.0L.....
 

·
Registered
Joined
·
439 Posts
Instead of going V8, go with the 2JZ Supra motor...If I were thinking about building a V8 in these cars, I would seriously look at the 2JZ before even thinking of doing anything else.
 

·
Registered
Joined
·
4 Posts
The Sky/Supra 2JZ Supra has been done. Just look it up in YouTube. Looks bad ass. The Olds 215 is a solid option for smaller cars. Used to be a popular choice, could still be. With the MG it would certainly solve one problem ... all the leaking fluid that the Brits forgot would drip out of the engine (I owned a TR-7, fun car but you got good at analyzing puddles on the ground). If you make the conversion come post a picture of it.
 

·
Registered
Joined
·
1,015 Posts
A stock engine won't get you to anywhere near 160.
Of course - you added around 40+ bhp with that tune and that will be reflected in terminal velocity.
Changed the software, but still all stock hardware, point being that with what it came with from the factory, it can get moving more than quickly enough without turning a single wrench.

If you wanted to do something unusual and I think potentially very fun, maybe swap in a rotary engine. I think it would be a good match for the size and handling of this car, and quite fun to go screaming around at high revs on some nice twisty roads.
 

·
Premium Member
Joined
·
104 Posts
The 215 put out 150 bhp and 220 Tq when released. Those are gross figures. They equate to 110 bhp (net) and 170 Tq net.

Are you saying that those figures compare well to the stock GXP outputs of 260 bhp/260 Tq? Or are you using '215' incorrectly to refer to the later larger displacement Rover versions?

And in regard to the MGB with a 215 in it, I run an MG with a 3.4 fuel injected GM V6 and it runs very nicely against a hopped up 215 powered one. They are about equal. I have about 200 bhp in my car. As far as nothing else being able to touch the MGB, try a small block Chev or Ford engines MGB - they regularly leave the Rover engined versions in the dust.

PS - my Solstice runs 375 bhp/375 Tq and gets 30 mpg. It is a very mild tune. You can easily get between 400 and 500 bhp out of the LNF should you want to. Without sticking some dinosaur engine in it.
Gee wsphon...you took the fun right out of it. Guess I'm gonna stick with this little 4 banger that I think should be close to your output now. Though I'd like another 500whp vehicle, this little short chassis setup at this power level is plenty fun and as you mentioned, knocks down decent mpg as wel.
 

·
Registered
Joined
·
2,392 Posts
Gee wsphon...you took the fun right out of it. Guess I'm gonna stick with this little 4 banger that I think should be close to your output now.
If you just have a tune you are probably in the 300-310 bhp range (assuming that you used a good aftermarket tuner, (not the factory GMPP tune). If you want substantially more than that a different turbo is the only way to get there.
 

·
Registered
Joined
·
25 Posts
Has anyone converted their RedLine to accept a Buick/Olds aluminum 215ci? Any issues with the engine mounts and mating the gearbox or auto transmission? Considering the low weight and torque/power potential of the 215ci one would think it would be a preferable V8 conversion. Thoughts anyone? Thx.
There was an outfit around Cornellius, NC, that was stuffing LS2 V8 into Skys - Mallett Performance. They also were dropping 427s into Skys.
 

·
Registered
Joined
·
1,015 Posts
If you want substantially more than that a different turbo is the only way to get there.
I'm told that a replacement down pipe is worth a non trivial amount, and I'm sure that a better intercooler will keep the power levels high as you drive, and those are both relatively easy things you can do to further improve a canned tune.
 

·
Registered
Joined
·
2,392 Posts
Actually the aftermarket IC won't get you any more power, but it will allow the engine to produce whatever power it has longer before experiencing heat soak and reduction of power.

The difference is something you'd probably never notice in normal driving - you have to be doing solo competition or similar to pump out enough heat to overwhelm the stock IC.

I high flow CAT or converterless downpipe does give a decent bump if the tune is suitable.
 

·
Super Moderator
Joined
·
5,926 Posts
Actually the aftermarket IC won't get you any more power, but it will allow the engine to produce whatever power it has longer before experiencing heat soak and reduction of power.

The difference is something you'd probably never notice in normal driving - you have to be doing solo competition or similar to pump out enough heat to overwhelm the stock IC.

I high flow CAT or converterless downpipe does give a decent bump if the tune is suitable.
To heat soak the intercooler I think you would also have to be doing something that demanded high power and alternated with no forward motion (like solo, drag racing, or stop-light racing). Any road driving / racing will include enough periods of lower power demand at a high enough speed to force enough air through the intercooler to prevent heat soaking.
 
1 - 20 of 24 Posts
Top