suprafan72 Posted July 24, 2011 Share Posted July 24, 2011 Being that I have a large turbo now to use its full potential I will need to rev my engine to 9k... What will I need to achieve this? These are my thoughts 1. Billet Main Caps 2. Very good Rod's with Bolts 3. Pistons 4. Built Head With Oversized values, dual springs, 280 cam's Port Matching 5. Billet Cam Tensioner Anything else? Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted July 24, 2011 Share Posted July 24, 2011 Deep pockets? Quote Link to comment Share on other sites More sharing options...
Guest ugp Posted July 24, 2011 Share Posted July 24, 2011 I would change all the shells / bearings too with ACL jobbies Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted July 24, 2011 Author Share Posted July 24, 2011 I got a built engine allready, Its a matter of ripping apart the block and see what's been done and what hasn't so to speak. Quote Link to comment Share on other sites More sharing options...
Bailey. Posted July 24, 2011 Share Posted July 24, 2011 I think that's about it, what intake mani do you have??? Just thinking ref flow at top end you want the best one possible. You will also need a massive set of balls! Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted July 24, 2011 Author Share Posted July 24, 2011 You will also need a massive set of balls! Got them Its a hypertune plenum Quote Link to comment Share on other sites More sharing options...
Bailey. Posted July 24, 2011 Share Posted July 24, 2011 Got them Its a hypertune plenum Worth a try, I'm on the look out for a manifold, lol Quote Link to comment Share on other sites More sharing options...
TLicense Posted July 24, 2011 Share Posted July 24, 2011 Being that I have a large turbo now to use its full potential I will need to rev my engine to 9k... What will I need to achieve this? These are my thoughts 1. Billet Main Caps 2. Very good Rod's with Bolts 3. Pistons 4. Built Head With Oversized values, dual springs, 280 cam's Port Matching 5. Billet Cam Tensioner Anything else? You should also budget in getting everything very finely dynamically balanced, including the camshafts. Quote Link to comment Share on other sites More sharing options...
JamieP Posted July 24, 2011 Share Posted July 24, 2011 What piston/rod combo are you thinking of going with Andy? 6. A very good engine builder that has lots of high bhp 2jz experience. Quote Link to comment Share on other sites More sharing options...
hodge Posted July 24, 2011 Share Posted July 24, 2011 If that's what your intending, I'd sell your current engine and buy a full new built lump. Quote Link to comment Share on other sites More sharing options...
Wez Posted July 24, 2011 Share Posted July 24, 2011 For higher reving dont you want to select lighter components, ie rods, pistons etc This should reduce the forces or enable you to rev higher while exerting the same forces as stock. Quote Link to comment Share on other sites More sharing options...
Wez Posted July 24, 2011 Share Posted July 24, 2011 You should also budget in getting everything very finely dynamically balanced, including the camshafts. Hey Tony, wasn't your engine theoretically capable of 10k? Quote Link to comment Share on other sites More sharing options...
Wez Posted July 24, 2011 Share Posted July 24, 2011 lch_exQJPzc Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted July 24, 2011 Author Share Posted July 24, 2011 I'm going to see what's in my current block before purchasing another... It seems pointless otherwise... Lets see what happens, No point in replacing the unknown as of yet... Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted July 24, 2011 Author Share Posted July 24, 2011 What piston/rod combo are you thinking of going with Andy? 6. A very good engine builder that has lots of high bhp 2jz experience.# Point taken Lets see what I have first... Quote Link to comment Share on other sites More sharing options...
DARETT Posted July 25, 2011 Share Posted July 25, 2011 Carillo HD rods are your best bet. Tried and tested at masses of power. Head wise Whifbitz big race head is an awesome head. Even with 272's my car made 1300 whp all the way to 9200rpm with the 91mm turbo. Quote Link to comment Share on other sites More sharing options...
dude Posted July 25, 2011 Share Posted July 25, 2011 If you are going for billet mains why would you not go 3.4 with a 4340 billet crank the one big issue has been how well the engines are line bored, so as you are going billet mains they need to be spot on and the weak point would logically become the stock crankshaft. Its a matter of personal taste but I would not use the ACL race bearings anymore, thats if you can even get them, I use Clevites and the best place to get those is from Paul Whiffin. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 25, 2011 Share Posted July 25, 2011 It might stand 9000 RPM for short bursts on a drag strip, but probably won't like it for extended periods on say a race circuit or up the motorway. My Skyline engine is all steel, built from ALL brand new top quality bits, it's properly balanced and put together, with proper cooling, and it's a shorter stroke than the 2JZ even before you start stroking the Toyota engine, yet my RPM limit is 8400.... 9000 is a lot of revs for a long floppy straight six crank. It'll need regular rebuilds and careful nurturing. Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted July 25, 2011 Author Share Posted July 25, 2011 It might stand 9000 RPM for short bursts on a drag strip, but probably won't like it for extended periods on say a race circuit or up the motorway. My Skyline engine is all steel, built from ALL brand new top quality bits, it's properly balanced and put together, with proper cooling, and it's a shorter stroke than the 2JZ even before you start stroking the Toyota engine, yet my RPM limit is 8400.... 9000 is a lot of revs for a long floppy straight six crank. It'll need regular rebuilds and careful nurturing. Point taken... It currently is at 8,200 rpm...Maybe arround 8,500 rpm is it's limits really..... Shame really as the Turbo comes in hard at high RPM... Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted July 25, 2011 Author Share Posted July 25, 2011 My car really won't be going down the drag strip, Just want a reasonably quick street car which will be good for mile events and fast road driving.. Quote Link to comment Share on other sites More sharing options...
T2 MSW Posted July 25, 2011 Share Posted July 25, 2011 Just a thought but is it not worth investigating getting the spool down with poss another Turbo which may work out cheaper than a rebuild on the engine?? I understand that the internals are somewhat unknown but this could be investigated when the head is replaced for a prep'ed head with the dual titanium valve springs. Therefore leaving the Rev limit at 8k and getting the longer life out of the engine. Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted July 25, 2011 Author Share Posted July 25, 2011 Just a thought but is it not worth investigating getting the spool down with poss another Turbo which may work out cheaper than a rebuild on the engine?? I understand that the internals are somewhat unknown but this could be investigated when the head is replaced for a prep'ed head with the dual titanium valve springs. Therefore leaving the Rev limit at 8k and getting the longer life out of the engine. Tend to agree, We will see what a built race head does.... and see if i can get my QSV working...or not..... Reving too high does make me feel nervous I must admit. Quote Link to comment Share on other sites More sharing options...
JamieP Posted July 25, 2011 Share Posted July 25, 2011 (edited) What's it like on the road now Andy? Any idea what rpm it makes full boost in top gear? Does it make full boost in 2nd gear? Edited July 25, 2011 by JamieP (see edit history) Quote Link to comment Share on other sites More sharing options...
johnny g Posted July 25, 2011 Share Posted July 25, 2011 My car really won't be going down the drag strip, Just want a reasonably quick street car which will be good for mile events and fast road driving.. Then isn't a huge turbo, with a huge rev limit something that you'd never get to drive properly on the street? If I was in for what you want, I'd be looking very closely at what Jamie has. Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted July 25, 2011 Author Share Posted July 25, 2011 What's it like on the road now Andy? Any idea what rpm it makes full boost in top gear? Does it make full boost in 2nd gear? You get full boost around 5,500 in top gear Makes full boost in 2nd gear just.... To be honest its more of a top end car really.....Still seems very driveable on the street.... Quote Link to comment Share on other sites More sharing options...
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