stevekoz

iTrader: (1)

Hi All,

Moved the thread to general as didn't think where it was was right.

I know these posts must crop up all the time so apologies in advance.

I'm thinking about my plans for the car this year. Few things happened that made me think life is too short so why not just enjoy it for once.

Currently my car is running 330hp and pretty much same torque. Peak power on graph looks to be a nice tight curve allway to 7krpm,

It runs a standard IHI VF43 turbo, injectors and TMIC are all standard.

The engine work that has been done so far is -

ACL Race Bearing
RCM Stopper HG's (0.78mm)
11mm High Tensile studs
Mahle forged piston and rings
Bore & Hone, Reface Heads and Deck
Air Pump delete
Oil pump modified.
Exedy clutch
Genome Exhaust
De-Cat.

I'm wondering what i need to do to get me more power and keep driveability and reliability? I've a feeling its a conservative map but it was done prior to my ownership.

I'm looking personally to hit the 400hp mark. I feel turbo, injectors and FMIC is the key list but based on what i've got now, how far would the current set up take me beyond what i've already got if anything?

TIA

Cheers
Steve

On-the-bog

Did the rods get swapped out?

stevekoz

iTrader: (1)

I think that they were yes, the build was by TDRacing and included Manley rod set.

On-the-bog

turbo, injectors, front mount and prob chuck a syvecs at it given your moving up the power levels.

stevekoz

iTrader: (1)

I figured the same kind of thing to be fair.

I'm wondering if 330 is about right for the power at this stage? I've heard of higher outputs even on standard internals but i imagine thats more wild turn up the boost and hope for the best builds where as i'm going for driveability and reliability. However, i still think i could eek out a further 30hp from mine to the 360 ish area??

Hawkeye D

Blob 2.0? Hawk 2.5?

stevekoz

iTrader: (1)

hawk 2.5 sti spec d

Hawkeye D

I too have a Spec D, and very similar engine build spec done in 2015.
Mine has a safe map from Bob Rawle, and see's 342 bhp with 410lb ft of torque.


Your build should be good for around 450bhp, so 400 for you should be safe enough.


As said, for this I think you'll need to upgrade the fuel pump if not done already, injectors, turbo etc. Standard top mounts peak at around 400 I hear.


With what you've got now I reckon you could improve a tad on BHP but definitely up the torque considerably with a good map. It's the torque that you feel, and built 2.5's have plenty of that to be taken advantage of.


As long as it's mapped well, I can't see you'd have any reliability issues either.
V-Power fuel all the way of course.


Nice to hear of another built Spec D by the way.

stevekoz

iTrader: (1)

Hi, Thanks for the advice. Mounts is a good shout as i hadn't factored them in but yes, need to do a bit more research.

I'm interested in what the turbo upgrade may be on this i know there are a number of options for both adapted units and straight bolt ons.

I may look in the interim for a slightly different map, as you say, and flex the torque instead of bhp. See what my tuner says when i next speak to him.

and likewise, nice to hear from a fellow spec d builder.