stock 200 to 6k

86KR4I

New member
What mods would i have to make to a stock 200ci inorder to get it to rev to 6k and maybe alittle beyond. As far as i can tell it needs a new cam and new springs do i also have to replace the lifters and other things in the head? Will the rod bolts hold up or should i just go ahead and upgrade them to ARP?

newb question thats just been on my brain for the past few days. :arg:
 
Might have to go to a Classic Inlines head. I don't know that a log head can do 6K.
Maybe with a turbo... :twisted:
And ya, you'd want to beef up the bolts and other stuff.
 
88KR":2qe2625t said:
What mods would i have to make to a stock 200ci inorder to get it to rev to 6k and maybe alittle beyond. As far as i can tell it needs a new cam and new springs do i also have to replace the lifters and other things in the head? Will the rod bolts hold up or should i just go ahead and upgrade them to ARP?

newb question thats just been on my brain for the past few days. :arg:

Glad you're de-lurking

This is the discussion to contributribute your insight and hard experience. Getting the 200 to run 6000 RPM - more than once - is one part, a drivetrain to match ...

Most of the usable power is reached well below 6K for most 200 builds. Hot cam & springs for better breathing together with ARP fasteners , etc, can add confidence to the time and money invested as yourTach climbs.

I like to say redline is "parts on the road minus 100 RPM"
 
Haha parts on the road. Well id kinda like to find out before then. Maybe thats just me tho.

I know its a low end torquey motor but id just like to wind it out. And yea in the end id have a classic inlines head on top of a well thought out bottom end(so i dont spent moeny for nothing) with a t5 behind it and a 8''.

So i dont need lifters or any other changes in the head to get that thing over 6k? cam, rod bolts and springs.

Will it do 6k on the stock bottom end? More than once i should say.
 
You'll never get a stock 200 to rev to 6K. You could get a modified 200 to 6K if done right.

Do the usual high performance mods to the bottom end: balance all rotating parts, chamfer crank oil holes, polish crank, dual link cam chain, ARP rod/crank/head bolts.

Cylinder head will have to be higher flowing than stock: CI alloy head, Aussie 250 2V, or if your really bold the Aussie crossflow. Don't forget to run roller rockers for reduced friction.

To make it worth your while, get a cam that moves the power band higher into the rpm range like a 274/274 (2000-5800), or a 280/280 (2300-6000). Definitely have to run higher numerical gears (3.55-3.73+) in the rear end because it will be a slug off line without them.

Don't forget headers, low restriction exhaust, upgraded ignition, and upgraded carb(s). I would also suggest an electric fan; wouldn't rely on the stock fan staying put at 6K.

I'll also ask why you want to go to 6K?

My BMW X3 3.0L is rated for 260HP @ 6600, but I seldom take it up that high, 0 to 60 mph in 7.1 sec, 80MPH at 2800rpm. It does make a sweet sound though getting there.
 
I think it might be safe to inply that the 200 needs more gas, maybe a TB would be best.
I know I can hit 5000 rpm with my 1bbl in1st/2nd but in 3rd or 4th i can forget it as I can't use that power, er wait that lack of power at that range. and before the rebuild I can hit 4500 rpm in 1st only (just couldn't get there in 2nd :?)

now if you added a turbo to a stock 200, then you can just keep going. I don't see a problem at all.

this thread might be intresting to know what a tired (still great) lil 200 can do with only a turbo
viewtopic.php?f=22&t=24859
the short story is, Linc_200 took a stock 200 and added a turbo to it, nothing internal changed, and ran 12sec's (?). i'm positive he rev'd more than 6000 rpm repeatedly, the fact that he did proves that the stock form of these engines are strong, and can take much abuse.

granted that is forced, but for a naturally aspirated 200 engine, you'll need a good cam. and perferably more than 2bbl's.

and +1 on the electric fan, you might want to look into electric water pump too.
 
Whats a ARP crank bolt? lol

Yea the whole point of the cam swap would be to shift the powerband. Thanks for the ideas/tips on building and yea electric fan for sure.

Is there any reason in particular i should get an electric water pump?

Road racing. Thats why i wanna go to 6k. I wanna see what itll do with a good head on it. I know they should have continued developing these. I mean look at what the aussies did.

Ill be on a budget so itll probably be long term and happen in stages.
It will be in a Foxbody.
Get the engine mated to a t-5 with a 8'' out back and in the car.
All stock engine. except cam, springs and roller rockers. 2v carb.
Mods for handeling. Race.
Build modfied bottom end -> modfied head to accept triple webers(always wanted to)
Take the already strong bottom end and plop a CI head on top with triple webers.
End with CI head strong bottom end and plop fast ez EFi on top of the CI intake and head.

If i make it that far and like how everything is going i might take the ez efi off and put xfi with a turbo.

Atleast thats the plan. haha.

It will be my recreational car for mostly track duty only. Im buying a new daily driver soon.

And the reason for alllllll of this is im a die hard ford fan and have taken a great interest in inline 6s so im working with what we have available here in the states. Also im doing all of it for the sound i wanna know what sound it will make at that rpm and getting there im sure it will be beautiful.
I
 
88KR":1773a2ed said:
Whats a ARP crank bolt?

Main cap bolt/stud. Keeps the crank in the block.
Don't think I'd run an engine without the main caps attached.

Maybe you would.
 
Haha well lets just hope i dont forget that step on build up and notice that the crank has alittle more play then i think it should. like when i replaced my front brakes on my foxbody and dropped it to the ground. I put the front bearings on but not the back ones they were still on the old rotors! it looked like it has mad camber haha. lift back up repeat the process while kicking self.

i think ive got the bug pretty bad. people at work in the office were talking and they were like man if i won the lottery id buy this car and that car. me and only one other car guy i know were like yea id take this old car drop this engine in it and fix it up. they were like what why? we were like why not?

btw the webers i want are sidedrafts. Which i know isnt budget friendly but i think the coolness factor and the sound will totally be worth it. has anyone ever seen a heat shield to protect them from heatsink over the exhaust. I was planning on techline coating the exhaust in any case. but itd like alittle more protection.
 
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