R32 Ls1 Conversion

[BezerkR32]

Yeh, would be nice, later down the track if i keep that long. Reason i didnt go Ford is the LS1 was the right price, and ford parts are seriously expensive, but i have no doubt you can make big power with them. Im only looking to make enough to run high 10s on the strip and to slide it a bit. Not sure why you were having ring trouble, i will be sure to research it a bit as we are up for a re-ring now that i am changing pistons.

we tried the LS1 thing in a hotrod and kept blowing rings out of the bloody thing...LS2 is the way to go

[BezerkR32]

I guess you you will have to take into consideration the fact that these other cars are heavy (78 Firebird).

I would be surprised if a stock RB20 would make an impression on a R32 making over twice the power and torque and weighing 300kg less. the engine assy alone is 30kg lighter than the RB20. and the car is gutted. but it sounds like u have a solid street car.

The first problem in making a reliable skyline is the use of a Chevy.

To do it right you need a Ford.

A turbo happy enigine that with the right spark can run 1000 street hp bone stock. Thoes are the 96' up Ford Modular 4.6 and 5.4 allong with their new Boss 302 block rated for over 1000 nitrous or boosted hp. Though i dont have the same respect for the brand new motors as their aluminum and we all know why we hate the R35 and sr20's.

Atleast it's being modified. I live in a muscle car town with no improrts you'll ever see. The word Corvette and Mustang mean an embarasement for their displacement when an stock boosted 89 japanese 2L whops their LS1 or other small block ass. I've gotten allot of pissed off looks from guys as a jam it into 3rd and start making distance with a 4" exaust tip laughing at them. Best race i've ever had was with a 78 firebird running a freshly rebuilt 400ci with all the bolt ons, i just crept by from mid 3rd gear and he laughed at me saying "it took enough nitrous to run a hospital to get by me(him)" and i also laughed and said that was just a bone stock 2L on stock boost. He never said a thing after that and is always eyes ahead every time i see him.

[gtr660hp]

Not sure why you were having ring trouble, .

Because the early batch of LS1's (The Canadian built ones)that came to Australia had such inconsistant piston to bore tolerances they were notorious for breaking off rings.

[2rismo]

If this motor hasn't developed the problem by now, it's not gonna.

[JAS-25T]

Because the early batch of LS1's (The Canadian built ones)that came to Australia had such inconsistant piston to bore tolerances they were notorious for breaking off rings.

Thats something that was resolved faily early on in the peice...........not to say I wouldn't like to see 6.0L stuffed into the front of an R32

[2rismo]

Thats something that was resolved faily early on in the peice...........not to say I wouldn't like to see 6.0L stuffed into the front of an R32

I didn't know you liked the dick, Jase?

[STATUS]

The first problem in making a reliable skyline is the use of a Chevy.

To do it right you need a Ford.

A turbo happy enigine that with the right spark can run 1000 street hp bone stock. Thoes are the 96' up Ford Modular 4.6 and 5.4 allong with their new Boss 302 block rated for over 1000 nitrous or boosted hp. Though i dont have the same respect for the brand new motors as their aluminum and we all know why we hate the R35 and sr20's.

Atleast it's being modified. I live in a muscle car town with no improrts you'll ever see. The word Corvette and Mustang mean an embarasement for their displacement when an stock boosted 89 japanese 2L whops their LS1 or other small block ass. I've gotten allot of pissed off looks from guys as a jam it into 3rd and start making distance with a 4" exaust tip laughing at them. Best race i've ever had was with a 78 firebird running a freshly rebuilt 400ci with all the bolt ons, i just crept by from mid 3rd gear and he laughed at me saying "it took enough nitrous to run a hospital to get by me(him)" and i also laughed and said that was just a bone stock 2L on stock boost. He never said a thing after that and is always eyes ahead every time i see him.

Fark that!!! stupid ford and chev clunkers. (i still play with these dinosaurs) see attached

Toyota 1UZFE with ivan tighe cams and some huffers will kill the equiv chev and fords hands down.... been proven 1000's of times and way cheaper. 1200hp all day on the 6 bolt main std bottom end.

[2rismo]

What's going in that monster? Looks tough.

[LedZepLen]

The Ford blocks might be capable of taking 1000hp but the rotating assembly and heads sure as shit wont. At least not "1000 street hp bone stock"

Not what my Muscle Mustang & Fast Ford magazine show. Theirs a cobra showcased with a bone stock engine except intake manifold, ignition and fuel system with twin GT35R turbos. The guy has a dial by the shifter with 4 engine tunes: 515hp at 9psi, 560 at 14psi, 680 at 16psi, 820 at 19psi. He says he's been beating the living crap out of the car for 6000 miles since the turbo kit and it loves it. In one artical they showed how to get 600, 700, 800, 900hp out of a stock 4.6 and the 900hp one actually made 970hp and 890ft.lbs on twin turbos and 93 octane. Thats a bit of overkill but the point is that it made that power in consecutive dyno pulls. Plus it's tourque curve went straight up at 3500rpm and never moved out of 75 points the whole way to 7200rpm, 800ftbls throught the whole pull opposed to all the supercharged ones that were making just under 400 at 3500rpm and never went close to as high proportinally to the turbo.

They say the Ford Modular engines are the domestic markets answer to the 2JZGTE supra engine in it's capability as a stock engine to easily handel hundreds of hp above stock in a stock engine. But it's a never ending debate over whats better because they were all built practically the same but in different bodies. I'd just love to see a logo on the side saying "BOSS R32 TT" and it would be really funny when someon asks if you've got a single turbo engine or a twin turbo engine and have that as the engine.

[rev210]

As someone who quite likes the ford motors, with friends who have been building them for most of thier lives I'd like to add;

Like most engines the 'modular' (read mass production cheap'o - just look at the cheap manifold issues) 4.6 needs a large wad of cash,work and bits thrown at it to make 1000hp, without being a ticking time bomb. Bone stock isn't a term I'd be using to describe anything but a hand grenade at 1,000hp. The main web and bulkheads are going to be cracked quite nicely in due time (this is a common place of failure with these blocks). Those factory blocks aren't what I'd be starting with for lots of power. I guarentee those guys with the big turbo kits (seems to be very few of them) are capwalking away their bottom end bearings life as we speak.

There is no magic brand or type of block that makes 1,000hp cheaply in a small cubic capacity. Thats the rule.

I'm not saying the 4.6 and its cousins 5.4 etc are terrible motors but, actually the Toyota engine is a far better peice of engineering, and although it kills me to say it the LS series alloy blocks are far better strength wise.

[JAS-25T]

I didn't know you liked the dick, Jase?

oh the irony..............................

btw - how's work going?

[DoughBoy]

Nice work Stu, will be good to see it out racing soon. I think you might be looking at a fair bit quicker than high 10's tho, if people are getting into the 11's in heavier holdens then you're laughing.

Toyota 1UZFE with ivan tighe cams and some huffers will kill the equiv chev and fords hands down.... been proven 1000's of times and way cheaper. 1200hp all day on the 6 bolt main std bottom end.

Them's fighting words..... ya going to put some $$ up to prove it?

[rob82]

No offence but 350rwkw aspirated out of 5.7 is alot of horsepower. I've never seen a 5.7L make more than about 300rwkws aspirated and that was in a fully built ultima I tuned. You may get close to that mark but over 300rwkw you will need cubes and lots of work. You'd be better off to keep the cam size small around the 224 square at 50 112 lope seperation and throw a harrop supercharger on it. Depending upon the the fuel system the 42lb should be enough for arund 400rwkw on the stock 4bar system. You will however need to trick the ecu into thinking it has less air than it actually has so you dont run out of ignition resolution. If you run a rising rate system you should be able to do this. Thats assuming you have calibrated the ecu correctly.

Edited November 7, 2007 by rob82

[2rismo]

Somehow I doubt Stu is aiming as high as 3000kw! The fuel system has been outlined in this thread and it's obvious that there's enough there to support the power goal. As far as cam selection is concerned, Harrop superchargers won't ever factor into the equation and I'm not convinced that 'lope' separation comes into it either!

Let's exaggerate for a second though and say that you lose 100kw through the drivetrain. So your engine power is 450kw or 600hp. Any engine builder who can't get 1.7hp/cube from a tuned atmo engine needs to go back to engine building school and that's all we're asking for in this example.

[rob82]

Somehow I doubt Stu is aiming as high as 3000kw! The fuel system has been outlined in this thread and it's obvious that there's enough there to support the power goal. As far as cam selection is concerned, Harrop superchargers won't ever factor into the equation and I'm not convinced that 'lope' separation comes into it either!

Let's exaggerate for a second though and say that you lose 100kw through the drivetrain. So your engine power is 450kw or 600hp. Any engine builder who can't get 1.7hp/cube from a tuned atmo engine needs to go back to engine building school and that's all we're asking for in this example.

No offence but you living in a dream world. That type of hp/cube would be ok for a 4vavle engine not an old donkey 2 vavle. You'd be better off trying to have a sweet torque curve than peak power figure!! Thats just my opinion.

[2rismo]

No offence but you living in a dream world. That type of hp/cube would be ok for a 4vavle engine not an old donkey 2 vavle. You'd be better off trying to have a sweet torque curve than peak power figure!! Thats just my opinion.

Ok champ but I know who's living in a dream world. lol

[gtr660hp]

No offence but 350rwkw aspirated out of 5.7 is alot of horsepower. I've never seen a 5.7L make more than about 300rwkws aspirated and that was in a fully built ultima I tuned. You may get close to that mark but over 300rwkw you will need cubes and lots of work. You'd be better off to keep the cam size small around the 224 square at 50 112 lope seperation and throw a harrop supercharger on it. Depending upon the the fuel system the 42lb should be enough for arund 400rwkw on the stock 4bar system. You will however need to trick the ecu into thinking it has less air than it actually has so you dont run out of ignition resolution. If you run a rising rate system you should be able to do this. Thats assuming you have calibrated the ecu correctly.

You obviously have never heard of a V8SC engine then...even our Fujitsu cars make 620hp at flywheel and they are 5 Litre 2 valve 'dinosaurs' running on pump premium

[gtr660hp]

No offence but you living in a dream world. That type of hp/cube would be ok for a 4vavle engine not an old donkey 2 vavle. You'd be better off trying to have a sweet torque curve than peak power figure!! Thats just my opinion.

Ill have to get you in one of our ol 'donkey' cars and watch you sht yourself

[rev210]

No offence but you living in a dream world. That type of hp/cube would be ok for a 4vavle engine not an old donkey 2 vavle. You'd be better off trying to have a sweet torque curve than peak power figure!! Thats just my opinion.

Sorry mate, I think you have had your eyes shut for the last 30 years, thats approximately how long 2 valve V8's have been making that sort of hp/cube ratio.

I know it can sometimes be an unpleasant truth to admit to tho'

[2rismo]

Multiple engine builders in Australia offer 2.0hp/cube and up and some of the americans are regularly doing this on pump fuel now.