engine options for hawkeye sti
04 October 2018, 07:08 PM
#31
so ive been to thwaites today and had a good chat with mark (he is such a nice guy to talk with-doesnt talk bull-**** and doesnt try and sell you stuff you dont need)
selling on my bottom end and starting afresh is the best move is what we both agreed on
he drew up a quick spec of what i could possibly have
new ej25 block from subaru
closed deck conversion
14mm head stud conversion
79mm new crankshaft
acl bearing set
cosworth pistons
manley tuff-stuff conrods
RCM super stud 14mm set inc dowels
rcm stopper head gaskets
new oil pick up pipe and sump
RCM baffle plate
new seal and gasket set
valves re-seated in the heads and refaced
he said an engine like that will be able to take around 550bhp-600bhp
he explained that it was boost pressure that will kill an engine aswell so looking for a turbo that i could whack 2 bar through would probably end in tears.
its over spec'd for my needs but i would sooner have it that way leaving room for more should i ever need it. he also said that i will need 1000cc injectors,new fuel pump and a set of rcm headers.
he recommended a precision turbo for 450bhp-500bhp, we talked about having a twisted set up aswell but for my needs its not worth the huge outlay, there are plenty of of standard fit turbos that will get me where i want to be.
he explained that it was boost pressure that will kill an engine aswell so looking for a turbo that i could whack 2 bar through would probably end in tears.
there was also an option for a lower spec block that should take 450ish bhp if i couldnt afford the 1st option but not alot of scope for more should i ever need it.
gonna get my thinking cap on now and look at my funds.if i could save money on the headers/injectors and maybe turbo by buying 2nd hand or from the states then that would allow me more funds for the main build.
exciting stuff.........
selling on my bottom end and starting afresh is the best move is what we both agreed on
he drew up a quick spec of what i could possibly have
new ej25 block from subaru
closed deck conversion
14mm head stud conversion
79mm new crankshaft
acl bearing set
cosworth pistons
manley tuff-stuff conrods
RCM super stud 14mm set inc dowels
rcm stopper head gaskets
new oil pick up pipe and sump
RCM baffle plate
new seal and gasket set
valves re-seated in the heads and refaced
he said an engine like that will be able to take around 550bhp-600bhp
he explained that it was boost pressure that will kill an engine aswell so looking for a turbo that i could whack 2 bar through would probably end in tears.
its over spec'd for my needs but i would sooner have it that way leaving room for more should i ever need it. he also said that i will need 1000cc injectors,new fuel pump and a set of rcm headers.
he recommended a precision turbo for 450bhp-500bhp, we talked about having a twisted set up aswell but for my needs its not worth the huge outlay, there are plenty of of standard fit turbos that will get me where i want to be.
he explained that it was boost pressure that will kill an engine aswell so looking for a turbo that i could whack 2 bar through would probably end in tears.
there was also an option for a lower spec block that should take 450ish bhp if i couldnt afford the 1st option but not alot of scope for more should i ever need it.
gonna get my thinking cap on now and look at my funds.if i could save money on the headers/injectors and maybe turbo by buying 2nd hand or from the states then that would allow me more funds for the main build.
exciting stuff.........
04 October 2018, 09:57 PM
#33
so ive been to thwaites today and had a good chat with mark (he is such a nice guy to talk with-doesnt talk bull-**** and doesnt try and sell you stuff you dont need)
selling on my bottom end and starting afresh is the best move is what we both agreed on
he drew up a quick spec of what i could possibly have
new ej25 block from subaru
closed deck conversion
14mm head stud conversion
79mm new crankshaft
acl bearing set
cosworth pistons
manley tuff-stuff conrods
RCM super stud 14mm set inc dowels
rcm stopper head gaskets
new oil pick up pipe and sump
RCM baffle plate
new seal and gasket set
valves re-seated in the heads and refaced
he said an engine like that will be able to take around 550bhp-600bhp
he explained that it was boost pressure that will kill an engine aswell so looking for a turbo that i could whack 2 bar through would probably end in tears.
its over spec'd for my needs but i would sooner have it that way leaving room for more should i ever need it. he also said that i will need 1000cc injectors,new fuel pump and a set of rcm headers.
he recommended a precision turbo for 450bhp-500bhp, we talked about having a twisted set up aswell but for my needs its not worth the huge outlay, there are plenty of of standard fit turbos that will get me where i want to be.
he explained that it was boost pressure that will kill an engine aswell so looking for a turbo that i could whack 2 bar through would probably end in tears.
there was also an option for a lower spec block that should take 450ish bhp if i couldnt afford the 1st option but not alot of scope for more should i ever need it.
gonna get my thinking cap on now and look at my funds.if i could save money on the headers/injectors and maybe turbo by buying 2nd hand or from the states then that would allow me more funds for the main build.
exciting stuff.........
selling on my bottom end and starting afresh is the best move is what we both agreed on
he drew up a quick spec of what i could possibly have
new ej25 block from subaru
closed deck conversion
14mm head stud conversion
79mm new crankshaft
acl bearing set
cosworth pistons
manley tuff-stuff conrods
RCM super stud 14mm set inc dowels
rcm stopper head gaskets
new oil pick up pipe and sump
RCM baffle plate
new seal and gasket set
valves re-seated in the heads and refaced
he said an engine like that will be able to take around 550bhp-600bhp
he explained that it was boost pressure that will kill an engine aswell so looking for a turbo that i could whack 2 bar through would probably end in tears.
its over spec'd for my needs but i would sooner have it that way leaving room for more should i ever need it. he also said that i will need 1000cc injectors,new fuel pump and a set of rcm headers.
he recommended a precision turbo for 450bhp-500bhp, we talked about having a twisted set up aswell but for my needs its not worth the huge outlay, there are plenty of of standard fit turbos that will get me where i want to be.
he explained that it was boost pressure that will kill an engine aswell so looking for a turbo that i could whack 2 bar through would probably end in tears.
there was also an option for a lower spec block that should take 450ish bhp if i couldnt afford the 1st option but not alot of scope for more should i ever need it.
gonna get my thinking cap on now and look at my funds.if i could save money on the headers/injectors and maybe turbo by buying 2nd hand or from the states then that would allow me more funds for the main build.
exciting stuff.........
pm if do t want to post up.
05 October 2018, 11:17 AM
#37
Yes going with either an ap racing clutch or competition clutch
05 October 2018, 01:38 PM
#38
Yes but You aimed 550-600 bhp build not 450 for future bhp rise
but You do not need closed deck inserts on 2.35-not sure how much it will cost with on 2.5l and still with inserts walls could crack-ok maybe not on the new block.
is not a difference only in block cost when You spec 2.5l and 2.35 to 550-600 bhp?
but You do not need closed deck inserts on 2.35-not sure how much it will cost with on 2.5l and still with inserts walls could crack-ok maybe not on the new block.
is not a difference only in block cost when You spec 2.5l and 2.35 to 550-600 bhp?
Regardless of how you dress it down a 2.35 is more expensive than a 2.5 and I cant stretch to that much.
05 October 2018, 01:40 PM
#39
Scooby Regular
05 October 2018, 03:50 PM
#42
06 October 2018, 06:48 PM
#44
so i have spoken with alan @ engine tuner today as i wanted to get a quote from somebody else to rebuild my current engine.
he said there is no reason that my current block couldnt be rebuilt BUT it is possible that it could be no good and its a risk that i can either choose to take or not.
if my block is ok i could save over £1k and re-using my crank/pistons would save me another £1k.
just a quick hone and re-ring the pistons
re-seat the valves
new head gaskets
new acl bearings
new timing kit/water pump
new oil pump - he recommended a 12mm oil pump
he also said that 14mm headstuds were not needed around 450bhp,he said about arp 260,000 11mm or arp extreme (i think) head-studs would be more than fine
he will email the quote over to me next week.
he is also quoting on a precision turbo capable of 450bhp and a link g4+ ecu. i found him very easy to talk to and at no point was he trying to sell me stuff i dont need, only down side is he is fekking miles away from me.
i will update when i have heard back from him
he said there is no reason that my current block couldnt be rebuilt BUT it is possible that it could be no good and its a risk that i can either choose to take or not.
if my block is ok i could save over £1k and re-using my crank/pistons would save me another £1k.
just a quick hone and re-ring the pistons
re-seat the valves
new head gaskets
new acl bearings
new timing kit/water pump
new oil pump - he recommended a 12mm oil pump
he also said that 14mm headstuds were not needed around 450bhp,he said about arp 260,000 11mm or arp extreme (i think) head-studs would be more than fine
he will email the quote over to me next week.
he is also quoting on a precision turbo capable of 450bhp and a link g4+ ecu. i found him very easy to talk to and at no point was he trying to sell me stuff i dont need, only down side is he is fekking miles away from me.
i will update when i have heard back from him
Last edited by the shreksta; 06 October 2018 at 07:08 PM.
07 October 2018, 04:42 PM
#47
just had a response from engine tuner
Full Subaru gasket kit
RCM head gaskets
RCM head stud kit
ACL Race bearings
Manley H beam rods
12mm oil pump
Dayco cam belt
the pistons may need re-ringing and a quick hone of the bores aswell might be needed
Full Subaru gasket kit
RCM head gaskets
RCM head stud kit
ACL Race bearings
Manley H beam rods
12mm oil pump
Dayco cam belt
the pistons may need re-ringing and a quick hone of the bores aswell might be needed
08 October 2018, 09:08 AM
#51
Scooby Regular
Yeah the first version of the 2.5 is the one that got the water damage somehow. It's fine now after a rebore and new pistons
08 October 2018, 09:09 AM
#52
Scooby Regular
08 October 2018, 05:34 PM
#54
Scooby Regular
500 is about what I'd want to run it at safely. Not entirely sure what it would actually take though, the block is essentially the weakest thing. I should think 600 would be ok.
09 October 2018, 09:20 AM
#57
plus whats mileage on your block, crank?
new will always be better.
09 October 2018, 09:30 AM
#58
Scooby Regular
.
09 October 2018, 03:12 PM
#60
the engine is 2 years old (built in august 2016 by scoobyclinic) it has covered just over 11k. the block case itself i have no idea as it was one they had on the shelf already converted to closed deck. the only thing that was re-used were the std rods and arp rod bolts and the 11mm head studs from the previous engine.
the price difference is quite alot
sell my bottom end maybe get £1800--£2k for it IF somebody wants it
-new ej25 block cases from subaru £1090+ vat
-new crank £450+ vat
-new mahle piston 2618 £550+ vat
-closed deck conversion £500+ vat
-new sump and pick-up pipe £200+ vat
-acl bearings £130+ vat
-machine work like hone etc £150+ vat
so around £4k with vat.