Autech Pulsar GTi

If I was him I wouldn't be worried about compression. 16ve pistons would put it to high anyway. N1 pistons if any....
 
clearly the bottem end is fine on this motor, think nissan/autech do a fine job out the box tbf.

frank im sure will now have some well earn'd fun and play with some tuned starlets, CTR, ITR and uk STi's :scooter:
 
Yeah, factory Autech is 11.5:1CR

M headskim and 1.8mm HG combo puts mine at around 11.2:1CR from my rough calculations.

I ought to do another compression test to see what cylinder PSI im getting too. Last time it was only 180psi, but ive since messed with the cam timing so it will be higher now.

If i reworked the bottom end.... id like to go 87 or 88mm bore and 12:1cr. You know i cant be arsed though. Building Hallys engine has put me off, lol!

Besides, I dont have any environment to have engines in bits at home. Maybe if i ever get a small unit/garage, then yeah.
 
Bar taking the engine apart with a rebuild, what other performance mods do you have planned? how much extra to be squeezed without opening the motor up basically :)

Would you say the custom intake manifold made a big difference?
 
Eddie, The intake manifold, the cam timing and the 3" inlet pipe were the best combined mods. I cant name a particular one that helped the most.

As already said, the next step to making more power with bolt ons would be a better header to suit higher RPM.

I think i could maybe squeeze 225hp/210whp without opening it up.
 
AOC Santapod Comp

This little beauty.....
2011-09-06114658.jpg


Minus these junks.....
2011-09-30183908.jpg


Equals this last run....
santapod.jpg


AOCTimes02-10-11.jpg



Excuses i've prepared to why i didnt go faster:
-I didnt try hard enough, lol
-My 60ft is still average/poor
-Best time was ran with too much fuel left, a 1/3rd of a tank of Juice - so maybe 15kg
-Sound deadening still present - 15KG
-Autech Kit is heavy and lots of aero drag - 15kg / -2-3mph
-Air Temps were hot = less power!!

Now theres still a bit of a buzz going on for me and i know theres more to come from this, so i may get myself down to shakeys for another few attempts before the year is up!

Oh yeah, HLM is booked for next staurday!
 
god i love your car dale

and an awesome time considering. like you say though hopefully to come which would be truly epic :)
 
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lol...Love the excuses...
But hats off to you man...
You the fastest N/A this year.

Race to the 13's....

I may go to Shakeys in October as well.
Will check the distance from me on multi map.
 
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cracking results dale. Did you have to do much modding to get the inlet to fit. Thinkin about getting one. Need to save for nistune first tho
 
Rich, If you want to keep the idle control system (IACV and air regulator), you simply need a flange welding onto the plenum to be able to mount it.

I chose to do away with the OEM idle control, and make my own mechanical valve thats controlled inside the car.

The injectors need turning around 180deg to be able to attach the injector loom, and you'll have to knock up a throttle linkage and cable bracket.
 
Yeah it would.

If you want to upgrade the TB you can specifiy to him what TB flange you want, so maybe go the q45 as they are larger and normally cheaper!
 
Well today was HLM and it was an epic fail.

I went there expecting to finally crack 200whp, but no...instead i made just 180whp and lost a bucket of torque.

I'll update later with graphs. Lets just say the inlet manifold has been sacked today.
 
Didn't you have it mapped with the inlet though? What have you done since then? Get the manifold chopped up.
 
Yeah the car is mapped to the aftermarket intake manifold, but when you see the graphs you'll understand why im not going to use it anymore (for now). The losses are huge, being 8whp down doesnt tell the full picture, there are losses of 20+ftlbs and 20+hp in the rev range.

Now as you can imagine i was quite shocked what had happened, at first i was like "no way" when i saw the figures.

But i'm more inclined to believe HLM's dyno instead of Aldons. I remember when i fitted the intake manifold it felt like it had lost a lot of torque, but i gained some back after degreeing the cams.

So anyway, heres the graph comparing the old 186whp (blue) run vs today (red).

HLMAutech.jpg


On the bright side, it means if i can get it back to how it used to run, i know i can go quicker in the 1/4mile.:winkiss:

So this also happened today, im now back to the original mani (sorry Stu) but have kept my current cam settings.
It drives well, so Im going to run it at shakeys next week, just to see how she does...i think its faster but we'll see.

The joys of N/A tuning...

2011-10-08142542.jpg


 
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