toddk911

So I would estimate that the 4", Stg2 IC and head together probably give you about 20% more hp than without those options?

lart951

Can you guys(dorklex and Durky) stop the OT on my thread, report sent. Hey where do I send the report to???

RolexNJ

Maybe he can tell you those answers, and about his 2.8L monster car he is building with Lindsey Racing too?

Duke

Send report to PM, I will forward it to the right person.

toddk911

ok, so 10% for the full Garrett and the head????

Puts the numbers to about 378whp without. Still a big number for K27 and only 18psi. I would love to see the chart if you can find it.

RolexNJ

Right, that's a first ---> Report Sent!

lart951

I dynoed my car at the exact dyno shop where mr G reached his 393rwhp. The word out there is that he was running higher boost than what he claimed, since there is not video or boost log of the run we have to depend on the persons claim it has the same validity as me stating that he lied in his boost level, is my word against his. At least I had the courage to video my boost level, but do not loose heart I will be back with more videos and more hp at the same boost level, you can count on that larts never gives out, no retreat no surrender (too much movies,lol)

toddk911

Yea, I would have to see the chart on that one.

But your results should be deemed very comendable in that you are sitting at OVER 400hp at the crank with chips that are way off. And it is not timing being pulled out since your a/f is very rich AND you run 20% Xylene.

And ST, and many others, will tell you that a dead on tune/chips in many cases will easily net another 5-10% at the wheels. So you get some new chips and at the same 21psi could be in the 360-370whp range.

So well done Lart!!!

pk951

Go back a few pages it was not a k27 the chips were k27

To bad MY Swiss does not post here he has the dyno chart at 18 psi he got well over 375Rwhp.

Sorry guys at 18 psi 415wrhp not bad for an old turbo.
The dyno chart is some were if i find it i will post it.

RolexNJ

Bravo to the Amigo --->

RKD in OKC

I had the 4" and Stage 2 IC and head when we were hitting the 350 rwhp wall. Also swapped from a really nice K27/8 to a Super61, but until the chips/injectors/fuelPressure/MAF were tweaked to work with each other it wouldn't make over 350 rwhp no matter how much boost was cranked in.

RolexNJ

Lart: Sorry for the OT pal.

RKD:

2.8L? 2.8L 2.8L? Start a thread. You keep letting the cat out of the bag, every once in a while, so let's here about it already. Spill the beans?! What is the deal with this 2.8L already and all the mods?

toddk911

So from about 350whp to 418whp with same boost, 18psi, only making adjustments to " chips/injectors/fuelPressure/MAF" ??

Can you share more details about what those adjustments were?

RolexNJ

Here is the original post by MySwiss and his run. However, he pulled down the dyno charts, so we can't see them. But people can still read about the thread it self. To bad the charts are gone too?



My Swiss Thread

RKD in OKC

Before adjustments the car peaked at about 340 with from 16 to 22 psi boost. More boost did not increase peak power. After the adjustments the car made 350 at 16, 375 at 18, and 400 at 20. The adjustments were: size the injectors and fuel pressure so the massaged max voltage output from the MAF for correct AFR at max power would match the max voltage output of the stock AFM on a stock car, then tweak the rest of the power range from Idle to full load for good AFR throughout.

It main idea here is that the chips think they are seeing stock air measurement and controlling stock injectors at stock fuel pressure. Running higher boost increases the flow into the engine and increases fuel requirements. The MAF output is massaged so it sends the same voltage range to the chips as the stock AFM even though it is measureing a higher peak flow rate. The larger injectors and adjustable FPR are used to get the correct AFR from the stock injector pulses.