Clifton

Do you have an excel log? This was taken from the Meagsquirt site. "Don't worry about how long your MAP sensor vacuum hose is. Intuitively it seems that shorter should be better. However, a few people have done tests to see how bad the effect of a long hose was on vacuum signal propagation. With a ~100 foot (~30 meters) coil of rubber tubing in between the MegaSquirt and the engine, the result was that no delay was apparent. This was with about a 10 millisecond resolution clock. The reason for this is that air has so little inertia that it moves very quickly in response to a vacuum (this is how we fill the cylinders, after all!)."

A GT series turbo isn't any more effecient on the compresor side. They aren't any smaller or lighter for similar HP rated turbos. The exaust wheel efficiency may lead to a slightly faster spool but what's 100-150 rpms compared to the extra $500+. I would use a log manifold instead of that turbo header and move it in and forward. Do you have a top pic?

Have you logged the buck? I have a miss/quick surge that is from a " voltage spike" according to the log that spikes the pulse width to 32ms and causes a nasty buck. Others with the problem have had to run a noise filter on the flyback. This is a MS2, V3.

Not a VQ, but my oil pan hangs below my crossmember. I didn't want to do it that way but that's how it had to be. It is between the tires so speed bumps aren't a problem. I just can't go offroad.

If it happens at a certain load I would look at fuel, too lean.

You can do the same running lean with a turbo. As other have said 350 rwhp is easily on just pump gas. Bigger turbo (larger turbine wheel too, not an upgraded stocker), fuel, intercooler and whatever yopu want to control it with and 15-16 psi. Don't let it run lean and don't let it knock and a stock block L28et will make as much power as you can get air thorugh it.

Turbo that LT1, as good as 2JZ's are you have another 2.7 liters. You could make as much as they do, but on pump gas and less boost.

They do have a long stroke, 91mm. They can rev though but the power just drops off. I've had mine to 7400 (rev limiter) and 7000 a bit more.

Your engine pics when you were 16 and 17 are incredible. You have a great attention for detail. I remember seeing a post of your 71' when it was just painted an now these pics, wow. You do really nice work.

To add to what the others said about them being too big. To want 450cc injectors means you are planning on running serious boost. You will still need some way of pulling timing under boost with your n/a ecu. You could piggy back the ignition but you will always be struggling with your fuel and trying to get the curve right. I did it with a turbo Supra ecu, it worked ok with piggy backs but I could never get the fuel just right, where I wanted it. MS is the easiest way of getting both fuel and ignition done and probably not much more money compared to the ignition (MSD BTM) and FPR and you'll have unlimited control and the datalogging alone is worth the swap.

There's a JDM 4 cyl motor that uses the same diameter shimless bucket, but no US models. They only become a problem on real high lift cams.

If you are over 50 mph and it's shaking and you touch the brakes does it go away?

I originaly removed my green covers to get more light, only to put them all back on because they looked yellow afterwords and not much brighter. These look great , had I seen this then I would copy you but I'm too lazy to go through all that again. I will get some of those super bright leds for my sequential shift light though.

Bernardd, Spork,, Thanks for clarifiyng. Lamba is lamda. It is the afr multiplier that needs to be changed for it it display different AFR's. I just spent the last half hour on the Innovated board reading to see what I misunderstood when I last read it.

Meth has a different lamda number. Unless you change that on the wideband. Nice numbers. Do you have a sheet so we can see the curve? Was this on 91 pump too?

With there kit you probably don't have a rate option and the rate they list is pretty stiff for the street, I wouldn't run it but it's cheap. You can run any 2.5 id spring with the MM or AZC kits, don't know about this brand. You would probably want atleast a 10" long spring. You can find Hypercoils, QA1, Eibach, ect used on Ebay pretty cheap sometimes.

cc/min / 10.6 = lb/hr

How about coil overs. You can run whatever spring rate you want or need and be able to adjust the height exactly where you want it.

I'm with you. I would believ 100 rpms. Although not GT turbo, I run a .70 divided, alot of guys with the same motor run a .68 undivided. Are spool times are nearly identical. On my car, going from an O to P trim is only a 600 rpm difference.

I don't see in your datalog were the map changes and rpms stay the same. At idle it is pretty steady, around 38. If you tach is bouncing from 1-2k at what looked to be idle speed in the video but your log shows a steady idle speed. I would think it is an MSD issue or it should show up as bouncing on the log with a steady TPS (0%). Are you running solid core wires?

Reider racing has new lsd carriers.

A driveshaft retube around here is under $100. There's alot of fab work to put a short nosed diff in. I would think the Z32 and Q45 use the same spline stubs. MM has a kit to use the Q45 CV's, I don't know if there is a length difference between Z32's and Q45's. You could use a Z32 diff with gears better suited to a 2l than the Q diff and use Q45 axles if the Z32 ones won't work..

To run Meth you will need to atleast double you injector size. I don't know about fuel line requirements. Maybe someone else?

Ideal depends on airflow and boost. At 14 psi it would work, at 25psi it would be way too small.