New age bottom end, how much power?
Thanks guys, I'm thinking of using a standard new age 2L STI block with Cosworth head gaskets ARP head studs my V3 STI heads & my RCM oil pump & baffle plate. I reckon I can build it for under £1500. With my RCM 400 it shuld make mid 400s on 20%Meth after proper mapping. If it lasted 12000miles it would be the best value most reliable use I'd had out of the car since upping the power.
I ran my 2.0 JDM standard engine at 380bhp and it felt fantastic and the bottom end is currently for sale complete with oil pump and water pump for £950 collected. If I ever have another newage it will be a JDM for sure.
I think this is the problem here Richard. Yes there are many newage engines running well over 400bhp on standard internals(i also done it myself) but how many are proven with trackdays thrown in?
There is a big difference to squirting the throttle every now and then to running the stock engine under high loads for long periods of time....Like on trackdays.
Im pretty sure ScoobyClinic posted up somewhere that they thought they had found the limit of the V9 rods on a track/race car.....At 450bhp they bent one!
For me its a no brainer...........For track use it has to be forged!
There is a big difference to squirting the throttle every now and then to running the stock engine under high loads for long periods of time....Like on trackdays.
Im pretty sure ScoobyClinic posted up somewhere that they thought they had found the limit of the V9 rods on a track/race car.....At 450bhp they bent one!
For me its a no brainer...........For track use it has to be forged!
Cars not even seen the track,only just got it ready. It was never built on the cheap & had a load of decent parts put in it Inc Mahle pistons, Manley rods & brand new v7 crank with moded thrust for the CDB.
I had plans for 3 track days this year which Iv now canceled. The first builder turned out to be a total cowboy & Iv recently heard other horror stories about him. My present builder is highly reputable & I know others who've had great results on road & track, he has not washed his hands of this, but he is busy & not local to me so I'm waiting for him to look at it. I'm just trying to put a back up plan together incase things don't go my way.
Rich I feel your pain! I had my evo built by a company twice first time spun the shells second time had head lift its ****e how they get away with such failures when you spend good money with them and they don't stand by there work!
That does sound a really good option but what makes the 2001 onwards bottom end stronger? And does it have be a sti or any import?
Hope all goes well for you
That does sound a really good option but what makes the 2001 onwards bottom end stronger? And does it have be a sti or any import?
Hope all goes well for you
Rich I feel your pain! I had my evo built by a company twice first time spun the shells second time had head lift its ****e how they get away with such failures when you spend good money with them and they don't stand by there work!
That does sound a really good option but what makes the 2001 onwards bottom end stronger? And does it have be a sti or any import?
Hope all goes well for you
That does sound a really good option but what makes the 2001 onwards bottom end stronger? And does it have be a sti or any import?
Hope all goes well for you
Hi Rich, bad news with ur engines mate!
When u say there was a problem with the car causing det, would the tuner/mapper not pick such issues up?
Im going same option as you and keeping to the standard bottom end for now, should i come accross problems then i would then be going for 2.1 stroker forged block for piece of mind, but if it runs at the 450 marker which is what i want as its a Road car not for track then i will be sticking with it (unless i get bored and want to up the power again lol)
Car is an 03/53 blob sti
When u say there was a problem with the car causing det, would the tuner/mapper not pick such issues up?
Im going same option as you and keeping to the standard bottom end for now, should i come accross problems then i would then be going for 2.1 stroker forged block for piece of mind, but if it runs at the 450 marker which is what i want as its a Road car not for track then i will be sticking with it (unless i get bored and want to up the power again lol)
Car is an 03/53 blob sti
Seems to becoming more of a common upgrade this for the classic owners,I've pretty much finished mine now (54 sti short motor/v3 sti heads)and looking forward to getting it back in the car(v3 sti)hoping for 500+ and if it lasts I'll be happy if not its cheap enough to replace it and wind back the wick a bit 
Tim
Tim
^^ thas a nice number and what my long term goal would be, dun think id have total faith in a 500+ standard motor lol, i know a few have done it and they have run and fair enough they're easy enough to come by but its the hassle that puts me off if it does decide to spit a rod or spin a bearing (may be i need to stop being a girl lol), look forward to seeing ur results keep us posted
keep us posted
Hi Rich, bad news with ur engines mate!
When u say there was a problem with the car causing det, would the tuner/mapper not pick such issues up?
Im going same option as you and keeping to the standard bottom end for now, should i come accross problems then i would then be going for 2.1 stroker forged block for piece of mind, but if it runs at the 450 marker which is what i want as its a Road car not for track then i will be sticking with it (unless i get bored and want to up the power again lol)
Car is an 03/53 blob sti
When u say there was a problem with the car causing det, would the tuner/mapper not pick such issues up?
Im going same option as you and keeping to the standard bottom end for now, should i come accross problems then i would then be going for 2.1 stroker forged block for piece of mind, but if it runs at the 450 marker which is what i want as its a Road car not for track then i will be sticking with it (unless i get bored and want to up the power again lol)
Car is an 03/53 blob sti
Im currently on a STI8 motor, running 400 ish, had a conversation today regarding running 321T to over 450 on the same standard block, and it all seems acceptable in the Subaru community that a STI motor will do justice. I may have sourced a T already lol
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From: Trying to pull a 10 second 1/4 mile running a standard 2.0ltr engine...
JDM Blob sti short motor in mine with sti 5/6 standard heads running 505/456 and pat herborn who mapped it said it was a superb engine that took timing like no other and never complained no matter what he did with it,he said if i had fitted the sc46 instead of the sc42 it would have taken it to the mid 500`s no problem.A great mod for a classic fast road or semi track car but i wouldnt recomend if going for a purely track based motor,you need to go forged.
Just thought I'd update this. My engine builder looked at it today & it turns out the engine is fine showing less than 8% leakage on each cylinder. What I'd thought was det on my camera was intact a shadow & can't be seen now & there is no oil on the piston, so it must have been some unburnt fuel.
Very pleased the engine is fine, but it may have a problem with the turbo, however we have changed the catch tank set up as the way it vented may have effected this.
Glad I started this thread though as it gives a seriously viable option for those wanting to up the power without shelling out on a forged build.
Very pleased the engine is fine, but it may have a problem with the turbo, however we have changed the catch tank set up as the way it vented may have effected this.
Glad I started this thread though as it gives a seriously viable option for those wanting to up the power without shelling out on a forged build.
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