View Full Version : Forced induction Dyno proven hp and engine modification thread

Boosted VLAD
22-11-2015, 05:04 PM
Post up your Dyno sheet of your Forced induction pulsar

Please post as much info as possible, such as:

Engine type
Boost pressure
Cams/ headwork
Exhaust /Intake
Anything else that you believe is responsible for helping you achieve the power level you have

Please also note if it was done on a hub dyno

Leroy Peterson
23-11-2015, 03:40 PM
My old setup:
GTiR motor in FWD
hub dyno (therefore torque is actually accurate, but this dyno is known to pull a bit more than other local roller dynos)


high boost at around 18psi, low at 13psi I think.

Tomei 260 degree cams, 11mm lift (no adjustable cam gears)
CP pistons (actual comp ratio probably around 8.8:1)
Stock rods
Supertech springs
ID1000 injectors
Stock intake and exhaust manifolds, 3.5" dump pipe, 3" straight-through exhaust (magnaflow muffler, no cat)
No porting or matching
Z32 AFM, PowerFC ECU, Crane LX91 ignition coil
Walbro 255 fuel pump, SARD fuel pressure reg, 98 RON

The motor died very soon after that from a number of internal failures, but no sign of damage from fuel/ignition/tune.

Boosted VLAD
23-11-2015, 05:18 PM

N14 Pulsar
Completely stock internals, (unopened motor)
Ball bearing Garrett 2860 Turbo, AR 64 rear housing
Autronic SM4 Ecu
Custom manifold/ Dump/ 3" Exhaust
PWR Intercooler, custom stainless steel piping
Bosch 440cc injectors
Bosch 040 Fuel pump

186whp @7psi on 98 octane fuel
Tuned for Drivability :)

Boosted VLAD
23-11-2015, 05:31 PM

N14 Pulsar
U13 Blubird Det
8:1 Compression Ratio
Cp pistons, Eagle rods, Acl bearings
270 degree Tommei Pro Cams
1000cc Injectors, Bosch 040 pump, fuel reg
China exhaust manifold, custom 3" Exhaust system
Small Ebay intercooler,
4 Bosch HEC coils,
SM4 Ecu, 500r cdi,
Greddy T518z turbo, 10cm rear,
98 octane fuel

210whp @8psi
245whp @12psi
287whp @16psi

23-11-2015, 06:05 PM

313hp before blowing spark out (now fixed but haven't re-dynoed)
Stock 20V SR20VE bottom end (11:1 compression)
Stock P11 SR20VE head with P11 cams
Stock X-Trail GT SR20VET exhaust manifold
Kinugawa TD06-20g turbo with 8cm rear housing
3" Patrol dump pipe, custom 3" exhaust
38mm external Turbosmart Ultragate (off exhaust mani)
JustJap 550x180mm intercooler
eBay 2.5" cooler piping kit
RS5F70V gearbox
Walbro 460lph fuel pump
ID1000 injectors, Doug Fab top feed rail, E85 fuel
18psi peak tapering to 16psi of boost
Bikirom ecu

Boosted VLAD
23-11-2015, 06:34 PM
Ignore the green tune, it valve floated with cheap valve springs

Red tune is current, it pulls timing to tell you to change gears, the less load, the more it pulls timing, hence funny last 1000rpm


Jap N14 SSS

Bluebird U13 SR20DET
10:1 Compression

87mm Cp Pistons, Eagle rods,
All internals machined and balanced,
Arp bolts everywhere

Tommei 270degree Pro cams
Super tech valve springs
Ported and polished head
Ported and polished stock intake manifold

Greedy Trust T518z Turbo, 10cm rear

Autronic SM4 Ecu
Autronic 500r direct fire CDI ECU
4 MSD Coil packs, MSD Leads

Walbro 465Lph E85 fuel pump,
1000cc Injecotrs, 5Bar base pressure

Stainless steel manifold
3" Custom stainless steel Exhaust system
650x200x90mm Front mount

United E85 Fuel, Tuned by Maddie Spry at PITS

Low, Medium and High boost settings:

310whp @12psi
370whp @18psi
432whp @25psi

Leroy Peterson
23-11-2015, 08:46 PM
gee thats big numbers. how is the T51 not choking to death? I know they like a bit of a boost, but surely 400hp FWD would flow too much for it? (though it does look to take a while to spool in the graph)

Boosted VLAD
23-11-2015, 09:13 PM
The T518z is absolutely maxed at the boost it's at,
I am yet to find anyone who has pulled these number on this same turbo,
Also, when I melted my last motor I melted the turbine wheel with it, so I bought a TD05 18g rear wheel and while I was at it I bought a Kinugawa TD05 18g anti surge cover for the front of it,
So I can say with 100% certainty that it's not high flowed or tampered with as these fitted perfectly snug,

It looks like it takes ages to spool/come onto power but it's on a fairly low ramp rate on the Dyno, without the load it's looks very delayed, on the street I see boost much earlier,
(This is also why you see the soft limiter coming in)
Also I run massive overlap, an extra 10 degrees I've dialled in with the cam gears, and yes, you heard right, overlap on a turbo motor,

On 7psi I make 260whp
The car/ turbo always seems to make 10hp for every pound of boost, take that into account and I am literally making 190whp on the motor alone!
I also have am astonishingly good tuner and I have my little secrets as to why it makes the numbers it does (;

And another thing, if you check out my car in the Garage section you will see a 130mph quarter mile pass I did to back up the power figures

30-11-2015, 06:49 PM
Engine type: RNN14 SR20DET
Turbo: GT2871R, 0.86 rear
Injectors: 555cc, then 1000cc for E85
Ecu: Microtech LT-8
Cams/headwork: Standard, with heavier springs post Feb 2014
Compression: ~8.3:1?
Exhaust /Intake: Stock GTiR intake and exhaust manifolds, 3" exhaust

295@21, U98, Nov 2008.
~350@24, E85, Aug 2014.
~380@26-27, E85, Jun 2015.

27-12-2015, 05:11 PM
my old GTIR
t2871r turbo
hybrid front mount
upgraded fuel pump
tuned to 16psi
3inch turbo back exhaust


Boosted VLAD
26-01-2016, 01:06 PM
I believe you now have something that belongs here :)

26-01-2016, 02:49 PM
Yes i do
Sr20de+t, ball bearing GT2560, JWT S4 cams, e85, walbro 460 pump, 1000cc injectors. 255hp at 12psi

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