The neverending march of progress

[Alex L]

So the 84 made it through the reunion without serious issue, and we all know what that means! time for more power!

as the dyno sorely pointed out, the ranger roller cam has got to go. thinking boport 1.9.

the OMGHUGE K&N is just silly, and im almost pegging the 60mm MAF in blow through configuration. intake / air filter is going to get relocated to the passenger fender, and the MAF moved to draw through. likely do the op-amp conversion while im cleaning things out.

install some sorta timing mark. eyeballing only gets you so far.

move the WBO2 down to the lower part of the downpipe, replace stock EGO sensor up top.

remove/disassemble/inspect gearbox and diff. been making a lot of noise lately.

im sure ill think of more stuff as time goes by

[Alex L]

boport 1.9 cam ordered. should free up some power over the ranger roller.

i think the intercooler piping is going to get strain reliever bolts welded to them. had enough trouble with the connectors blowing apart at 18psi.

[Alex L]

boport 1.9 in stock; moates quarterhorse just ordered. pics as soon as i start getting dirty.

[Alex L]

boport cam installed. nice putter to it at idle. heat cycled it a few times to get the HLAs pumped up. finally starting to quiet down.

having a bit of trouble with the QH1 and the la3_maf.bin from the binary editor site. no matter, think i got BE2010 to work with caroth's bin.

[Alex L]

as soon as i data log the 1.9, getting close to 80% duty cycle on the 35# injectors.. at 4krpm @ 10psi of boost. so out they come, in go 83#/hr. out comes the blow through 65mm MAF, in goes the 90mm MAF.

start to do more data logging, and the power steering pump starts failing, fast. turning the pump by hand feels.. crunchy. started pulling all the crap off the driver's side of the engine, manual rack ordered.

[Alex L]

it lives! got the first 2 volt mapped out on the xfer, no more 'transfer creep' from the turbine backflow. alternator bracket fabbed up (ya'll are gonna get a kick out of it at the reunion, its ghetto redneck), and it fires right up. timing belt idler is shot, now that the PS pump is gone, i can plainly hear it whine. think ive got spare though..

now to remove the TRW rack and put in the manual rack.

after that, durability testing, mapping the MAF out to 90% duty on the injectors, then in go the big hoss injectors.

[SVORob]

it lives! got the first 2 volt mapped out on the xfer, no more 'transfer creep' from the turbine backflow.

Are you sure you are from Kentucky?
We aint got that kinda vocabulary down here
but congradulations I recon

[chalkys_explorer]

maybe he went to private school????

[Alex L]

maybe he went to private school????

naw man, iz proad 2 bee a graduated from the boone county plubic skool system!

[Alex L]

just got back from getting an alignment done. boy, the manual rack is going to take some getting used to. it has a lot more road communication then the busted power rack; not nearly as much effort as with a powerless power rack, but its definitely not a one handed drive anymore. nice to be able to drive the back roads and not do the hand shuffle on the hairpins though. think i maybe got a half turn in either direction.

[Alex L]

so from the way home's datalog:

WBEGO	LOAD	MAFLB	MAFV	PW1	RPM	TP	INJDUTY
11.45	2.0	23.64	3.6	20.96	5949	2.16	103.9293
11.46	2.0	24	3.6	20.68	5949	2.15	102.4999
11.5	2.0	23.64	3.6	20.59	5910	2.11	101.4145
11.22	2.0	23.55	3.6	20.36	5879	2.15	99.75646
11.41	2.0	23.28	3.6	20.04	5963	2.13	99.58466
11.48	1.9	22.55	3.5	20.33	5831	2.07	98.77711
11.45	1.8	20.35	3.4	20.07	5705	1.92	95.38855
11.44	2.0	23.28	3.6	19.85	5754	2.15	95.19134
11.26	1.9	22.19	3.5	19.46	5865	2.06	95.08791

and it didnt go *boom*. guess im putting the new injectors in first thing tomorrow! didnt think i was getting on it _that_ bad...

[chalkys_explorer]

Looks like you got lucky!!!!!!

[Alex L]

Looks like you got lucky!!!!!!

yeah, less then 1/2 throttle @ 6k and 10psi of boost and hitting the injector ceiling. i <3 this 1.9 cam

[Alex L]

the 83#ers went in without too much drama. remember kids, just started enrichment is a multiplier table, not an adder...

last datalog looks a lot better:

WBEGO	LOAD	MAFV	PW1	RPM	TP	TS	INJDUTY
12.61	2.315	3.5	8.46	5005	2.12	0	35.26656
12.69	2.218	3.5	8.74	5126	2.12	0	37.31104
12.67	2.229	3.5	8.61	5045	2.12	0	36.19201

starting to hit the areas of the fuel table where stock is richer then the 12.5 target i was using for tuning. so next step is to get a narrow band O2, feed that into HEGO in, and get it to settle out under idle/cruise. then i get to work my way up WOT tuning to red line, and then off to the concrete dyno!

ill get some pics up when i get back this week.

[Laredo]

How low does your pulse-width on those monsters have to be to get it to idle?