😂
You guys crack me up, all your suggestions rock 😀
Dislex666: If I could just spool that big bastard then I would be smiling all the way to an early grave 😀
<a href="http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT28/GT2871R_472560_15.htm">I think this would do the trick</a>
Not too sure about the R9000 price tag though, maybe I should just wait a few months and save up 😀
i'd get the .84 AR if you want it's legs to last tho... but that will be lagier than .64 🙂
if you aren't sure about the 9k price tag, then just stay away. Keep your car stock...
if you want to use that turbo on a CA18 reliably, you gonna need headwork + cams + valvesprings + forged internals.
So you need about 40k i would reckon... fok, headwork + cams + valvesprings you already looking at least 20k.
would like the turbo to spool at around 3000rpm, be pulling hard at around 4000rpm and only run out of puff at around 8000rpm or after if possible.
I wont matter what size turbo you fit there without head and cam work its going nowhere near 8000 rpm.
Have you thought about the intended use of this vehicle? If its a daily driver I suggest you start thinking a bit more conservatively because while you are waiting for the boost to arrive stock S13's will be pulling away and when the boost comes in you will be having so much fun keeping it in a straight line they will still be pulling away.
If the road is long enough you may catch them in 4th or so.
Plus you will wear out your synchros from all the gearchanging so you can overtake busses.
Heheh nice one Calibrator! Thanks for explaining that - I knew there would have to be a tradeoff for getting big power from a small engine.
Calibrator: Thank you for the well thought out reply, you make a lot of valid points well worth considering.
Dislex666: Thanks meneer, I am well aware that the motor will have to be built from the bottom up, as well as the hefty cost associated with such a build.
I am not about to make any rash decisions right now, just trying to gather as much info as possible so that when time comes I have my ducks in row so to speak.
ferking weird ass double post....
you ever consider going against the norm, and doing a highish compression low boost setup???
i wouldn't do that on a small capacity engine...
it will work yes - but i think you'll get more power with more boost (summing you can't do on higher comp)
I know some people have gone from 8.5:1 to 9:1 with very good results. But dunno so much about higher than that.
Having said that - I know there's a bolt on kit for the E46 M3 that takes it up to crazy power - like 600+whp. Without dropping compression, i think it runs summing like 6-7 psi.
So it is possible... but not summing that i'd pay someone to do - if i was more mech inclined i'd prolly hack it myself on like a test basis.
Unfortunately you don't really wanna gamble with a 40k+ build
there's a little high compression/low boost faction out there online somewhere... but i lost that damn info a few years back...
made for very interesting reading.
but you're right - who wants to risk, but then on the other hand - some people who take calculated risks get beeg dividends!!!
that m3 thingy sounds flippin awesome!
Hi veecee, as a matter of fact I have considered raising the compression ratio to around the 8.8:1 - 9:1 range as but would not want to go higher than than for fear of detonation. There are definitely a few pros to raising the compression ratio (quicker spool, lower boost less stress on the turbo, overall increased efficiency, etc...)
If you have any other points to add please do, pros and cons.
Time will tell I suppose, for now I gather info.
Good morning Dislex666, I read about the HorsePowerFreaks turbo kit over on bimmerforums, it looks insane but I am a little skeptical of american dyno read outs, they do seem to be generous compared to similar setups over here.
<a href="http://forums.bimmerforums.com/forum/showthread.php?t=634174">Link to low boost high compression e46 m3 turbo kit</a>
Hmmm, so ur low down torque and response gets increased, but at the cost of less power overall? could work, if ur into traffic and turns I guess.
interesting
ja but there's also heaps of other stuff that comes into play by messing with the stock comp.
I'm sure the calibrator will come tell us more in due time...
Thought this was intesting:
"The compression ratio is a single number that can be used to predict the performance of any engine (such as an internal-combustion engine or a Stirling Engine). It is a ratio between the volume of a combustion chamber and cylinder, when the piston is at the bottom of its stroke and the volume when the piston is at the top of its stroke. The higher the compression ratio, the more mechanical energy an engine can squeeze from its air-fuel mixture. Literally, high ratios place increased oxygen and fuel molecules into a reduced space, thus allowing for increased power at the moment of ignition. Higher compression ratios, however, also make detonation more likely."
<a href="http://en.wikipedia.org/wiki/Compression_ratio">Full article here</a>, good old Wikipedia.
Hi Puls0nic, I don't understand your reasoning, please explain.
Talk about going off topic 😂 😂 😂
maybe the point is that you dont have to have a huge turbo, or even a t3, to make useable power!!!
so its still a little on the topic - i hope!
veecee: As much as I hate to admit it I think you are 100% right 😀
The more research I do the more I slowly lean towards a sensible <a href="http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT28/GT2860R_707160_5.htm">GT2860R</a> with a 0.64 A/R, damn you all with your common sense and logic 😂
O h sorry... sumtimes my reasoning is ...... not wellput.
I just meant that if u increase ur compression ratio then u have to decrease ur boost levels, to keep the same level of 'detonation' so to speak. Normally aspirated engines have a high compression ratio, thats y they respond so nice and instant, while a turbo'd motor has a lower compression ratio, but it has the boost to compensate for it. So, driving a turbo car b4 the boost kicks in, will not respond or perform as well as a similar car, with the higher compression ratio..... until u get to the RPM where ur boost kicks in, then its cool. So, I was saying, if u increase ur compression ratio, then u have to decrease ur boost... So now ur car would perform better b4 the boost, just like or similar to a N/A car, but when the boost does come, its not as big. Very similar to the difference between a big and small turbo. 😉
thanks jon - but its just ideas that have stemmed from the two years i've been driving my sx. i would prefer more low down power to a strong kick in the back, and i've always thought that you could still reach about 250kw with a higher compression ratio and lower boost!
pulsar - not always true though - turbo motors and n/a motors are built differently. if built right, and tuned properly, i dont think you have to sacrifice boost. unless you were compressing to 2 bar to start with!!!
the common thing is to keep the compression below 11.5:1 in n/a motors, yet often when a turbo motor is in full boost it reaches 15:1... so i dunno. why not just have an n/a motor that has 15:1. maybe because they dont build heads that can support that much airflow without boost - i dunno. maybe i'm starting to ramble again - dammit!!!
along the same vein (although it may go off topic quickly), what kind of power might an sr20det yield with a compression ratio of 9:1, 2 bar boost out of a t3/t4, with 4 1000cc injectors???
check the new speed n sound with the 1400 bakkie using CA180det with 1000cc injectors and almost 2bar
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