89 z24 3.2L hybrid build

[treeZ24]

Finally got er running with my SDS standalone system.. after trying for a day to get it running right, narrowed it down to faulty injectors, swapped new ones in and she runs like a dream. i did all the standalone wiring and machining for the crank pickup myself. the system is sooo easy to tune its not even funny.

pics can be found here,

http://www3.telus.net/treeZ24/myZ/Engine%20Swap/

gotta get some miles on it now

i'll add more later but my basic specs on the engine are

* * 1990 cavalier 3.1L block .040"
* * crank .010"/.010"
* * beam polished conrods + balanced on a medical scale by myself
* * ARP rod bolt set
* * complete rotating assem balanced
* * 3100 hypereutectic pistons .040" over(coated) + moly rings + ss-oil scraper rings
* * cloyes timing set
* * reground cam, duration = 210* at .050" (256* advertised) with .295"cam lift @ 112* c/l
* * clevite 77 bearings
* * melling HV oil pump
* * windage tray
* * crank scraper
* * block/head work to improve oil returns
* * polished oil filter adapter
* * polished front mount
* * compression = 9.92:1
* *
* * 98 3400 heads mild port
* * 00 3400 uim/lim port matched
* * upper intake manifold debadged and polished
* * 00 3400 TB, iac deleted
* * custom 1" 6160 spacers (polished)
* * lim welded for clearence
* * ls1 valve springs/seats
* * 3 angle valve grind
* * crane cams 1.6:1 gold series roller rockers (valve lift = .472")
* * 3.1 pushrods
* * 3.1 timing cover
* * ps delete pulley and bracket
* * 3400 valve covers/polished
* * 3.1 injectors
* * 3400 fuel rail
* * adjustable Fuel pressure regulator/ guage (polished)
* * Custom headers (hand built, 36" primaries)
* *
* * custom 2.5" mandrel bent exhaust back to flowmaster 40 series
* * Aurora plug wires
* * K&N air filter element, stock airbox modified for improved stock cowl induction
* * Throttle body heater bypass
* * relocate coil packs
* * msd coil packs
* * SDS em-4 f standalone fuel and spark engine management
* *
* *NOS direct port nitrous setup, starting at 35HP, once engine is tuned

i realize the engine bay looks like crap but i had to tear it all apart for troubleshooting and this was later on in the night

http://s2.photobucket.com/albums/y48/mprooi/vids/?action=view&current=100_0066AVI.flv

[Darin]

Nice job, It always a nice feeling to hear a new engine start for the first time isn't it?

Is it just me, Or does anyone else think this will cause increased oil temps?

[treeZ24]

yeah man its been discussed already about the oil temps. i do agree with you, but i dont think its enough of a problem, nor does the guy at my speed shop since there's tonnes of airflow under there.

sorry the pic doesnt have my heat shield in place either.

[IsaacHayes]

Do you use a computer to tune that system? If not then how is it easy to tune if you don't have tables/visual/info?

[gboogie99]

good job, very clean

[treeZ24]

Do you use a computer to tune that system? If not then how is it easy to tune if you don't have tables/visual/info?

so far i'm finding it very easy to tune. it comes with its own programmer (i dont have a laptop so that was kinda nice imo) and all i'm using is a wms wideband controller/bosch sensor to help adjust the fuel parameters. unfortunetly i havent been able to get too far into tuning it yet since its a new engine and must be broken in. there are 3 guage modes as well, so where i dont have any visuals there is a a/f recording feature for wot and then 3 screens showing all sensor values.

WOT is the easiest to tune and then i'll go back to the fuel maps for partial throttle. then adjust the map settings for whatever gives the best kick. then see what kinda timing i can run. it should take me a day to get it all sorted out once i'm able to. after that i might dyno tune just to see how close i got from the street.

all i needed to start and run the engine was the cylinder size in cc's and injector sizing. enter in the values across the board and its driveable.

also, there is a nice feature in the mixture knob, it adds or subtracts up to 50% of your current fueling settings for really quick referencing to a/f ratios. then you can go back and make the correction based on the % lean or rich, turn back the knob to 0% and move on.

[IsaacHayes]

Ahh, pretty cool. How much was the SDS system? It will be intersting to see how perefect you can get it tuned! Good luck!

[treeZ24]

the total came to something like 2400$ but that was with the wms wideband controller (600$) and all the relay options that i wanted.

still a little bit more over say a holley, miles over a m/s but i didn't need a laptop, it has some real nice easy tuning options and its just a press of a button to change options. (love the rich/lean knob) i got my car to idle tonight, turns out i just adjusted the throttle stop all the way in and it lets in JUST enough air to idle. by tapping the -1 button a couple times (to decrease the amount of fuel,) i brough up the a/f ratios from 11.8- 12.8 for the 1000/750/500 rpm ranges

i should be able to get very close once i can tune wot fuel and then map values.

to top it all off, i was super impressed with their technical support when i emailed sds any question their response was either same day or tomorrow, with more then enough information.

[IsaacHayes]

Cool, good support is a big bonus!!