The End of Phase 1 ... The beginning of Phase 2
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From: Swindon
Fitted and tested, very minor difference in maf output which would not necesitate a rescale of the maf (although if remapping I would do) under normal circumstances, some difference in fueling observed compared to the large diameter one, I reused the fuel map from the airbox set up as a start. Looks the same as the previously posted pics but maf barrel is smaller ie same diameter as the air box tube. Effect on boost is still the same, I ended up resuing the boost map settings from the larger induction setup. So for a std turbo and intake this is the way to go if an induction kit is wanted, the larger version would, I think, be ideal for a car with turbo upgrade or even a 2.5. This would apply to any of the New age cars to date including the JDM '03's ie STi9's.
A std fuel map would probably just live with it as its so rich to start with however a ppp or optimesed fuel map may/would not. A wrx may suffer from stoich fueling on boost due to earlier turbo spool and would then need remapping.
bob
bob
A std fuel map would probably just live with it as its so rich to start with however a ppp or optimesed fuel map may/would not. A wrx may suffer from stoich fueling on boost due to earlier turbo spool and would then need remapping.
bob
bob
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From: Swindon
In terms of comparison with the car with airbox and filter or compared to the 80mm version. No difference as such between the two versions of induction that I could discern, bear in mind I am checking out the bigger version only for interest and future thinking (ie larger turbo option), compared to the airbox all the prior comments apply, boost held as mapped instead of tailing off, earlier response (too early as have to profile the turbo spool). needed more fuel of course.
bob
bob
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Cheers Bob.
Exactly what I meant. I was interested on whether the smaller bore kit 'felt' any different from the larger bore kit on driver sensation. I.E. Did it feel more restricted like the airbox was.
Thanks
Nathan..
Exactly what I meant. I was interested on whether the smaller bore kit 'felt' any different from the larger bore kit on driver sensation. I.E. Did it feel more restricted like the airbox was.
Thanks
Nathan..
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so to confirm......
Bob, what exactly are the figures to be expected from a new jap sti with a remap, janspeed BRD spec zorst and BRD spec intake system ?
Just want to know as if they're that good I'll flog my motor and buy a new jap import.
one last thing, Bob are you gonna sell this as a "Phase one" pack and if so how much ?
cheers,
steve
Just want to know as if they're that good I'll flog my motor and buy a new jap import.
one last thing, Bob are you gonna sell this as a "Phase one" pack and if so how much ?
cheers,
steve
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From: Sunny BELFAST
I'd imagine that a classic shape bodyshell with the 2003 JDM STI powertrain would be close to the dream roadgoing Impreza for many folk.
cheers
big sinky
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From: Swindon
Sounds pretty much what happens, most induction kits knock the maf callibration for six, you do have to watch it. The Blitz stainless filter is also absolute pants when it comes to filtering, shot blast the compressor wheel anyone ?
Roger Clark can supply the kit I tested.
bob
Roger Clark can supply the kit I tested.
bob
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From: Kent
Bob
Is this the "big" jkit or the "little" one
Originally Posted by Bob Rawle
Sounds pretty much what happens, most induction kits knock the maf callibration for six, you do have to watch it. The Blitz stainless filter is also absolute pants when it comes to filtering, shot blast the compressor wheel anyone ?
Roger Clark can supply the kit I tested.
bob
Roger Clark can supply the kit I tested.
bob
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From: Swindon
They can supply either but you couldn't ft the 80mm one until the minute b4 mapping.
Well I think I'm on the home straight with these mods, I've booked a final rolling road session to see whats what ... then its into the "unknown" ... lol
bob
Well I think I'm on the home straight with these mods, I've booked a final rolling road session to see whats what ... then its into the "unknown" ... lol
bob
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From: Swindon
Sorry but just had to post this, made some minor (seemingly) tweaks to cam timing last night as on my way back from Heathrow I noticed that due to engine load ramping much more quickly I was "missing" the cam hot spot, so adjusted to suit, also tweaked fueling as she seemed to be leaning marginally at 6k onwards (not a blip just a change in afr) and took 0.6 degrees out of the timing in a couple of noted areas.
Had a run down to Bournemouth this am to do a running in map on a 2.5 litre jobby (Motec M48pro) and the grin factor was enormous, most noticable was the 0.5 to 1.2 bar region on part throttle. I never needed to use anything higher.
just gets better ..
cheers
bob
Had a run down to Bournemouth this am to do a running in map on a 2.5 litre jobby (Motec M48pro) and the grin factor was enormous, most noticable was the 0.5 to 1.2 bar region on part throttle. I never needed to use anything higher.
just gets better ..
cheers
bob
)
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From: Swindon
OK we got there
Rolling roaded the car at PE this am, ambient temps were 9 deg C, air intake was 24 deg C, not bad considering the induction is in the engine bay. Fuel my usual cocktail of Opimax and NF to make 101 ron.
Its worth recapping where the car started I think. Lots of detail further back in the thread.
First rolling roaded last August as completely std, then remapped with only the addition of the three port solenoid and dump valve. So exhaust still had cat in it and airbox still had std panel filter. Held boost 1.4 bar mid range and falling down to 1.18 at peak power. The std result ran boost to 1.5 bar peak then taper to 0.9 bar.
287 bhp and 276 ft lbs torque out of the box
327 bhp and 323 ft lbs torque after mapping
Next we fitted the full 3" Janspeed exhaust and added the STi panel filter, then again remapped to suit. held boost was 1.5 bar mid range but limited to 1.2 bar at peak power this stage (not through choice).
347 bhp and 348 ft lbs torque (at Prosport 350 bhp and 350 ft lbs torque)
Next we installed the induction kit, tested both an 80mm and 65/68mm version, in the end I left the 80mm one in place as I wantd to gain further experience with the required maf rescale. This is the size that should be used with 2.5 litre cars.
369 bhp and 368 ft lbs of torque.
Boost was 1.55 peak then held 1.5 mapped down to 1.38 at the redline, peak torque has moved left nicely, interesting anomaly at 5750, you can feel the kick up from that on the road, there is nothing obvious in the maps, relates to cam timing.
First runs were done in 4th ... no way ... too much torque, car has to be run in 5th now, we had three of us in the car for the final run to be sure.
So not much else to say ... ITS TURBO TIME !!!!!!!!!
cheers
bob
Its worth recapping where the car started I think. Lots of detail further back in the thread.
First rolling roaded last August as completely std, then remapped with only the addition of the three port solenoid and dump valve. So exhaust still had cat in it and airbox still had std panel filter. Held boost 1.4 bar mid range and falling down to 1.18 at peak power. The std result ran boost to 1.5 bar peak then taper to 0.9 bar.
287 bhp and 276 ft lbs torque out of the box
327 bhp and 323 ft lbs torque after mapping
Next we fitted the full 3" Janspeed exhaust and added the STi panel filter, then again remapped to suit. held boost was 1.5 bar mid range but limited to 1.2 bar at peak power this stage (not through choice).
347 bhp and 348 ft lbs torque (at Prosport 350 bhp and 350 ft lbs torque)
Next we installed the induction kit, tested both an 80mm and 65/68mm version, in the end I left the 80mm one in place as I wantd to gain further experience with the required maf rescale. This is the size that should be used with 2.5 litre cars.
369 bhp and 368 ft lbs of torque.
Boost was 1.55 peak then held 1.5 mapped down to 1.38 at the redline, peak torque has moved left nicely, interesting anomaly at 5750, you can feel the kick up from that on the road, there is nothing obvious in the maps, relates to cam timing.
First runs were done in 4th ... no way ... too much torque, car has to be run in 5th now, we had three of us in the car for the final run to be sure.
So not much else to say ... ITS TURBO TIME !!!!!!!!!
cheers
bob
