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Antstarr wrote:Wow m8 really impressive nice 1
After speaking 2 mikejc tho he said that one drag of a quarter mile
That is shockingly scary.
a quarter of a tank for a 1/4 mile ? something wrong with that, or has he got a 1 gallon fuel cell or something in the car ?Mikejc wrote:Great results mate you must be really pleased
At what kind of rpm are you seeing 1.7 bar?
I'm completely amazed by the GT3076 that's been fitted recently, 1.9 bar of boost by 3700rpm
Theres faaaaar too many variables involved. Like you say the result of your quick spool is likely down to the manifold. What happens if you adapt the GT3076 to a standard manifold and run a 2.0L application and not a 2.2L? Will it still have the same spool? I doubt it! ..mapping plays a bit part too.splash2 wrote:Antstarr wrote:Wow m8 really impressive nice 1
After speaking 2 mikejc tho he said that one drag of a quarter mile
That is shockingly scary.
i don't think so.
..his cars been mapped by Motec...dunno if that makes any difference. at 12 seconds of WOT per 1/4 tank he'd have to be going through what 10 - 15 litres of fuel on one run. Good thing is atleast you can play around with the end result..its all good having a big turbo, but what is the point if you have an engine built, which'll only rev to 8000rpm. And by this i mean taking into account oil pump issues, cavitation, air locks in the water system, valve train / crankshaft lightening, etc etc. Reading compressor maps is all good, but thats only half the story!, if your free wednesday night bring that beast along the the local Meet in Kingswinford. Tim should be comming if your not sure where it is. Be nice to see what we need to do to get the sort of power. Theres a few planning big builds that come, we often get about 20 cars turning up.You'd be most welcome bud... Those are some excellent number for 1.6bar of boost...be interesting to see your dyno plot too. he has a sard manifold which came with the turbo and thats about it head work wise.(i know all this cos i work for him and also own a rev3 turbo!!) I know Nathan is also a racer 
so the combination should be a good one, LOLcraig_mr2_mk1 wrote:Nathan hasn't had any work done to his head either, no valve work, no porting, std inlet manifold.
...which makes me feel quite frightened about mine now! ..............well done Nathen. That is astonishing, i almost fell off my chair as I read your original post. i must admit, as some with have gathered from recent posts, I had lost my faith a bit in UK builds against the likes of the US and Japan with so much crap being talked and noone walking the walk when the other countries were consistently banging out great engines. but you , and Mike, have certainly helped to put Uk MR2 builds back up there. from looking around there quite a few more to come too. Makes me feel all kinda warm adnd fuzzy! 
=D> 
££££ for you to take me out in it? I've driven some fast machinery but finding it hard to imagine 500hp + in a 2......... =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> =D> My bro has a 504hp Cossie RS500, would love to see the smile wiped of his face (he plays with ferraris for laffs!!!) and would make one hell of a drag race! Whatya think? kick my bro cossie-ass!!!???? please! Bobby (aka Shaggar) wrote:
pps.
greeny wrote:Bobby (aka Shaggar) wrote:
pps.
Now that would be good to see!
If it happens video it!!
If this handed my bro's ass to him I'd have thevideo done on vhs, dvd, laserdisc, betamax, and have the photofinish put on postcards, t-shirts, car decals. He's never live it down that he got whipped by what he refers to as "jap crap". 
In hine sight i wish i had gone with bigger valves but again 500hp was never in mind! As for the head work its self its std. I did have to opportunity to do some porting when the head was stripped down but i have a guy who does my machining work who builds some pretty special race engines and he gave it a look over and really couldnt see much to be improved on the head. He said it was one of the best std heads he had seen - Yamaha did their job well =D> I went through all sorts of options in my head - thick walled - sleeved or both but in the end, after speaking to Rob i got the feeling that he thought it was more boost pressure than power that killed the blocks! And at 1.55 bar now i think is fairly safe....... [-o< Now also i will fit bigger vavles, eagle rods and ARP main studs with new high power CP piston Rings. I will also get the venturi flow thingy done to the turbo to eliminate the compressor surge and then a trip back to Rob for some more magic and better results again.- an angel and the devil! Because the turbo is a bit lazy you can drive round all day off boost (saving lots of fuel!!) and it acts like a normal car. Sure the clutch is a tad (but not bad at all) sharp and the idle is ever so slightly lumpy but thats it. Then boot it and before you know it the traffic in front is reversing towards you and you cant change gear quick enough! The power delivery is sharp but very controlable so i cant imagine track day driving any hassle at all...... 1/4 mile!! When your in the band..... your in! Change gear and your still in. Power is strong from 5 through to 8,250 with peak power @ 8000. 
..... but thats another story!.... what power are you running?@ the weekend for the formula ford festival pop in and see me. 
nathanfreke wrote:
I was hoping to get to shakespere raceway next week but looks like thats also a no go and after thinking about it maybe its not such a bad thing as i dont want any embarrasing moments with exploding cv housings!!!
lol, i know all about that! The car is having a few more bits and bobs fitted next week and then having a 2nd map done for race fuel, after which I hope to pop it round to Thor in order to get some numbers I took the original engine just about as far as possible in the end with just about every bolt on mod known to man finding it's way on to the car lol.@ the hubs in the end via a GT28 running 1.3bar. Like yourself this was achieved with completely standard internals and proved to be very reliable in this spec It's the rings that tend to let go before the piston give up 
Having said that with that monster turbo that your running it really shouldn't be creating the kind of heat of some of the smaller options out there 
