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Discussion in 'VR - VS' started by someguy360, Jan 24, 2013.
More cam needs more compression or it will be lazy.
That's good to know. If you boost do you then need lower compression or can you just run 98?
His is a 304 so a bit different to your 3800 V6 but both are a 8.4/8.5:1 CR which is perfect for boost but if you want to cam it you need compression to match.
I know the 276 will be a little lazy but so is the 268 to be honest. I've driven a few with the stall/gear combo I'm looking at and it's driven pretty decently, one day I may look at some head work etc but it's just not on the cards at the moment.
The 268 was great, but I'm not looking for more power, I'm looking for a better sound which the 276 will have, the 268 has zero lope at idle which is a bit disappointing.
I'll see how it drives after the stall, gears and a retune and if it's really screaming for more compression that may eventually happen along with a 4 barrel TBI/manifold set up as I just find those things sexy as hell.
If you want more compression on the cheap, remove your heads and get them milled down a bit, did this on my old 304 and it did the trick I also used cometic 27 thou thickness head gaskets (std is 40) just be aware you’ll probably need to mill the inlet manifold down too so it will fit
^^ Yep yep yep except scrounge up spare set of heads so that when everything is ready it can be back up & running over a weekend.
Being in S.A I'd honestly be hassling TK for advice on cam specs & head touchups.
This is why I'm looking for a cheap block !!!!
Would rather say here's my maloo= this is what's in it = like = take =pay and here's my original block/ engine = pay extra for maloo with hot engine and if want here's the original matching # engine .
Not that it's about making money ( don't make any hotting up cars )= more about this is what I want compared to what's available and giving a choice to future owners ( not totally sure why I'm thinking of them)
Maybe stupid and older ha ha ha
Winter seemed like a long wait, and I was bored, so this happened.
Phase one is happening now, cam, lifters, valve springs, timing chain and tune. I'm going to drive it for a while once the converter and gears are in and maybe do some head work next Christmas should I feel the need, having driven a few other stockers with a 276 it doesn't feel a whole lot doughier down low than the 268 was and the converter should help it get into that power band quicker anyway.
I've been cleaning up a quarter of a century worth of sludge in the dishwasher on parts that I didn't have time to clean last time the engine was stripped down.
Phase 2 and 3 will be happening in April/May when the rain starts to come in which will be paint, converter and sending the diff out for it's rebuild and gears.
"Old Cocks dishwasher".... Skid Factory fan anyone?
What solvent are you using?
I was waiting to see who noticed.
I'm running around 80% low odour kero and 20% Diesel, seems to be the best combo so far for removing heavy build up.
I run straight kero, but my oath its expensive when you need over 30L. In SA you can buy it from a bouser but not over here anywhere i have found.
Yeah I bought mine from Bunnings and god damn it was expensive even for 15L of low odour which is more expensive than regular.
I had to go the low odour stuff because half my garage is my home office and don't really wanna get hammered on fumes on the days I'm working from home lol.
Pretty sure this is an aftermarket ss rear lip. S3 lip is very different and is 2 piece.
As for cam, I'd tend to put another engine together on the side to get it right the first time with some compression. Go a little higher on the stall imo - 2800-3000 and something along the lines of a 284 if you want the lumpy sound. I'd go for one of the Aussie branded converters - I had a roadblaster in my ss and was very, very happy with it.
The more you know, either way I like the look.
I'm considering building another streeter. I've got access to spare blocks and am thinking of doing a high comp 284/6 build on the side. This will get me by for now, but I ideally want another engine on the side to build up properly if I'm gonna go all out. I'm in two minds I either skim the heads on this motor which already has a few k's on it. Or I take my time and build something properly which I'm leaning towards more, I don't want this car to be off the road too long and if I'm doing a proper build it's probably going to take me a good 12 months to piece together.
If I take the car off the road for too long to do a big engine build, I'll rush it and it won't be what I want.
I'll be happy with the 276 for now to get me by and the stall and gears will be fine for the next engine combo down the track. I'll have a look at the roadblasters, I've seen them about online, do they still have lockup?
Yep they have lockup. Can be ordered with or without if you choose I believe. Missed the last page of this thread - didn't see you already purchased the cam haha
As for heads, see if you can find some VT heads with the smaller chamber - makes it a little easier to achieve a reasonable compression ratio and you don't need to shave so much off.
I actually find it easier to remove the engine and trans whole rather than pulling the engine apart in a car. My reg has just expired too - it's eligible for club reg this year so I'll be getting it ready for that.
Oh nice, It's 30 years and over here so I've got another 4 years to wait.
Yeah, that's a problem as my garage is under the house so strong petroleum smells permeating up through the floor would not go down well.
I'd go quick & lovely route of cometic headgasket take shim out then just skim heads enough to not need manifold machined unless find machinist that will do it for reasonable coin.
It's more fun when a slapper setup goes better than you thought it would vs building a big banger.
Can't wait to get vp ute on 60 day rego in 3 years...then will turn into an angry weekender.
I think either way you will need to take enough off to warrant the intake been machined too and cometic gaskets are so expensive, I think machining would be cheaper. skimming heads doesn't cost that much.
That being said though if I'm going to that length it's probably better doing that to a fresh engine than one thats got 220k
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