EFIDynoTuning

Anyone had luck changing batterys on the old soldered in style QH? I'd just send it In for the upgrade for $100 +50 shipping on top of that and I have to ship my old QH back to them so I'm the end it will save me maybe 50 bucks tops to ship it back to them. Any pics or tips? Can it be done with a so...

no u only need to cerify when u crack the 9s, most tracks will even waive a rollbar in the 10s as many stockish vehicles can run that these days, our local track stopped requiring it when we showed up with 15+ stockish cars one day all running 10s lol in any case, as long as your not running a sanc...

Ive been doing a lot of reading on what is required of different organizations (scca, nasa, nhra) and they all seem to differ on what is required. A rollbar is easier to satisfy everyone and i thought of going that route as it doesnt need to be recertified every few years..... i just like the safety...

Yeah i kinda figured that, im hoping 1st wont be too bad when i switch to 3.55s or 3.31 (depending on trap speed when i finally get an acceptable run) being an all round car though not just a drag car i think the close ratio should be good for what i use it for (i hope, expensive purchase having nev...

Ended up ordering the 2.66 close ratio t56 magnum, mcleod RXT clutch and quicktime bellhousing, she pulls hard higher rpms im hoping whatever i lose 60ft with the tall 1st ill gain on the top end by keeping the rpms higher between the shifts

Anyone spent time behind both ratios and have any inpressions to post about? Leaning towards the close(2.66 1st) ratio because of the useable 6th gear and im sure the vortech will favor closer ratios but how much will the 2.66 1st hurt compared to the 2.97? Got a set of 26" hoosier qtp's for th...

The bypass should be open (bypassing air) at idle and high engine vacuum.

When you rev it the bypass should close when you snap the throttle open(low vacuum) and then open and bypass air once the throttle blade closes

Im seeming to have a high rpm discrepancy also since changing to the universal adx?
, did grounding the distributor fix it? My logs have been showing a lot less rpm than the tach or shift light, but have the msd limiter alsoset at 62.

It did have a very slight vibe for a while before this all went on, probably the beginning of the balancer losening off. thought it was coming from driveshaft.
No copper when i drained the pan and she was making good oilpressure whenbi put it in the shop

I'm on the fence about it.
the new balancer is a wicked tight fit, can feel it will need some persuasion to get it on, the old balancer slid on by hand basically, and no locktite on the bolt. So the key was doing all the work

A couple last pics before i pull the engine, pulled the woodruff key and cleaned the crank just to see what its like not as bad as i thought.

Anyone want to tell me not to pull the motor? Lol

Picked up a powerbond race sfi balancer

decipha wrote:you can yank the crank and weld it up and machine it back, but that would prob be more work than just replacing it

Doubt ill go this route but any more info on welding the crank? Have to be tigged prob? Would a mig suffice? Have to quench it once its welded?

Bah, still undecided which way to go ,have a powerbond sfi race balancer sittING at the parts store(single keyway standard size oil seal, CNC machined AISI 1045 forged steel hub) and a spare crank sitting in a block on the shelf. Do I throw the spare crank in, single keyway powerbond balancer and do...

Decided it was time for some subframe connectors, decided on 1/8 2x2(as per nhra requirements not that it matters where im at) full length, plate under torque box. Not perfect but I'm happy with them for 90 bucks (like 70 American greenbacks) They did really limit flex felt through the chassis, the ...

If you get a sec and could check the pics over, still don't know if it's salvagable some people say yes some say no, still undecided if it can work with this crank, new woodruff key and a new balancer

Got the timing cover off cleaned the crank and took some better pics, does it look salvageable with a new woodruff key and balancer? Balancer bolt had to have backed off. Is the woodruff key just for ensuring proper alignment on the crank or with a tight balancer bolt should the keyway be what's sto...

The woodruff keyway on the crankshaft is wallowed out pretty good closest to the balancer for about 1/2" maybe more,
thinking I need to change the crankshaft...
if that's the case may as well get a second woodruff key machined on the new crank and a blower specific balancer.

I Broke a chunk off of the last one on the part that slides in the crank seal, this one the keyway is about 3/4inch wide now on the balancer side, I torqued it to spec when I threw it back together but apparently I need way more torque on it. Hope the crank is okay gotta pull timing cover and see if...

Well toasted the 2nd oe style balancer, so who runs what?

I Found a Powerbond Race Series SFI Approved
PB1084SS for a reasonable r
Price but will it hold up? Only want to buy it once.

Double keyway? Is it necessary?

Not looking to run spacers or anything like I see some require

It should run fine without a tune since the Maf is calibrated, obviously better with a tune but should be fine without, I ran an E cam performer headed 30lber and calibrated Maf combo for years without a tune, only tuned it since the supercharger

Discharge tube picture

hope this is in the right section I've had driveability issues with my combo since changing over to blowthrough MAF on a non intercooled Vortech setup, too much turbulence in the discharge tube would cause .3v+ swing on the maf at idle and low load cruising, and bucking while trying to cruise at a s...

As long as you have the flow sheet it doesn't matter, calibrated is only if you dont tune it.

Good call ill have to make sure the cert. On my helmet is up to date

Some guys push there car to the line, fire it up, burnout and make a pass, others drive it to the line, any advantage to one over the other?

Should get to the track this month or early next, and just wondering, I had always just drove to the line with the car already warm?

What's this teamviewer?

I'd usually suggest a machine shop if you have access, but I live 30+ miles from a town with 1 small machine shop that has a wait and charges you more than it should, but comes with a handshake and a smile. anyhow needed to get the wife's Acura back running after she poped a head gasket, head was wa...

After a few cups I gotta drop the kids off at the pool, but only in the morning, I'm a hardcore coffee drinker tho throughout the whole day a lot of the time.... better than a bad crack habit

Your hitting "initialize emulation hardware" the usb cable looking button first?

Pmas hpx-e claims 1000 in a 3"tube

If you go blow through make sure u can put it in a long straight section with no bends or anything so you don't get a lot of turbulence if u can help it, I found out the hard way what a lot of turbulence at the Maf can cause by having the bypass valve too close, bucking and driveability issues... id...

Awesome, yeah just wanted to make sure, i would have done it wrong, I figured it was a powered output, thanks

Is that the only diagram on the page? I was seeing a link that want showing up, and figured there was another diagram. So I just use pin 41 as the switched on for the relay then correct? And ground the relay to body or does it need to be ran back to 37, 57 or what, sorry not a wiring guy I can run r...

hmm yeah tried that, didnt seem to work on my devices, tried laptop, tablet and phone? ie and firefox

It's probably my devices, can anyone post a screenshot or email me one? Finally got the pins to wire this thing for ecu fan control

Figure it didnt need a new post but the high speed fan wiring image isnt showing up on my screen http://efidynotuning.com/foxfan.htm

if you want power out of it youll have to boost it Wish I could hide a blower/turbo :D rules don't allow power adders or I'd go for an xr4ti, but I did notice the one guy had an 8 plug roller cam 2.3, and another had some bigger injectors and I'd guess other mods too but there so hush hush they jus...

Been hanging out at the oval track lately and there's a bunch of 4cyl foxes running pretty good in the street stock and bone stock, what kinda stuff can be done and keep it looking stock on the outside motor wise? I gotta build me something and I can't stomach racing a FWD Honda... What kinda hp can...

we always cross our chains (x) so if it does come off the chains will hopefully catch the tongue rather than dragging. never had it happen thankfully, don't think the horses would like the ride

The tune on the car was 95% if i remember correctly, a little dashpot i havnt got perfect.... yet, but it was getting 22mpg with 3.73's

Got the 80 sd's and mh30hpxe on the way, once im happy with the way she runs again ill grab an 8inch lower and an msd, should be fun

Yeah you were right, had water under the dist. Cap, and im going to nominate myself for the chump award, make sure u have enough fuel, dont trust a 25 year old gauge, was above empty but had air bubbles in the fuel line. Just glad that happened in the yard and not on the way to town.

Thanks