Ajax’s intake manifold

[Ajax]

ian helped me out yesterday and we got some problems taken care of. Turns out the overheating problem was most likely caused by a kinked coolant hose, which probably helped create a big air pocket, thereby leading to no flow. 2 90* bends and some finagling of hoses and the coolant flows fine.We also used Xcessive Manufacturing lowering mounts and dropped the engine almost an inch. Now the hood is close to closing- a little trimming of hood under junk and it should close properly.

[GODCHSR]

Still no dyno yet?

[IanS]

Still no dyno yet?

Not yet, but I did get to see the car drive for the first time in almost a year. I even got pictures to prove it.

[Ajax]

Still no dyno yet?

AMS Tuning date is now June 29th. And now that the coolant is flowing and the car is aligned, it should just be a matter of some underhood trimming to be ready for the trip to Chicago.

[DjPantsSpecR]

Test drove it right into your garage....

I knew i shouldnt have left you two in charge of finishing up the coolant lines, you cant trust an SR boy to do anything right the first time....

pretty spiffy.... now we just need to make you a new intake pipe ASAP. Something that compliments the runner lengths, and a cold air box to put it in.

Oh yeah, i forgot to ask, did you put in those s***ty plastic velocity stacks? I dont know if i would have. First reason, those stacks werent made out of the same material as they do on motorcycles, etc, it seemed like some regular a** HDPE. Reason two, like i side before, they radiused the lip on the inlets already. so when you put the stack over that (to increase the runner length really) the seal made between the two pieces is terrible. I cant imagine how much turbulence is developed in that area.
Modified by DjPantsSpecR at 7:41 AM 6/12/2009

[Ajax]

It went around 2 blocks after idling for almost 10 minutes thank you very much!You mean my hacked up Injen is too ghetto for you? I'm thinking relocate battery to trunk, short ram, and Ian thought of a brilliant/horrible idea to get an SR radiator for more room. We'll talk more about it once its tuned with the N60 and 370cc injectors.

[DjPantsSpecR]

I was thinking the same.

You know i have a toyota supra radiator sitting around, i'll go take a look at it.

EDIT: supra rad is about 3-4 inches too wide
Modified by DjPantsSpecR at 9:52 AM 6/12/2009

[IanS]

Test drove it right into your garage....

I knew i shouldnt have left you two in charge of finishing up the coolant lines, you cant trust an SR boy to do anything right the first time....

pretty spiffy.... now we just need to make you a new intake pipe ASAP. Something that compliments the runner lengths, and a cold air box to put it in.

Whoa whoa whoa whoa whoa whoa whoa whoa.

Who you calling boy?

Hahahaha, those coolant fittings are in such piss poor locations, there is absolutely no good way to route the hose. I was using what we had that night. It didnt kink until he drove it.

I ended up using 2 90 degree fittings, and a piece of hose with a 90 in it, just to make it not kink.

Ideally, the upper fitting should come out at 90 degrees, pointed towards the rear, as apposed to going straight down, where it interferes with everything. If there was a 90 fitting there, then all you would need, would be a U shaped hose.

[Ajax]

Now you youngins keep it down. Old man here's tryin ta think.Yeah, we'll get it set up properly soon enough. My schedule is just too busy right now for much of anything. It'll be tight for me to get the car ready for the weekend unless I pull an all-nighter.

[Ajax]

Quick update. Cut out some hood bracing- it now closes- still need to add the hood pins so I can ditch the stock hood latch.Just got a shipment from FRSport- new CS coolant reservoir. Tonight I'll be installing and using the new spill proof funnel to hopefully get rid of any persisitent air bubbles. Also going to take some measurements for Xcessive Motorsports, since the skidplate I received didn't quite fit (not sure if its because I had HICAS, or if I got a bad plate). They'll make me a new one.Tonight is the only free night I have before my trip, so I've got to get it done and dependable for Sunday's drive and Monday's dyno-date.Hopefully I'll have some really good news to spread on Tuesday.

[Ajax]

Not enough swear words in the eenglish language right now.Car still having strange coolant issues- gauge irratic, coolant spitting out from upper rad hose and seeping through coolant temp sensor. Now car won't start, most likely a bad ignition switch. AMS postponed indefinitely, taking the car to John Haley to have Chase work on the sucker.

[xKAxPOWERx]

Not enough swear words in the eenglish language right now.Car still having strange coolant issues- gauge irratic, coolant spitting out from upper rad hose and seeping through coolant temp sensor. Now car won't start, most likely a bad ignition switch. AMS postponed indefinitely, taking the car to John Haley to have Chase work on the sucker.

So I've benn following this build for the past hour, because i was reading some old thread and came across it, and then cam across your own updated build thread. and im disappointed to find after clicking the 2nd page of posts...; no results..nice car and build though. I'm waitin' for some numbers.

[Ajax]

I know, ridiculous, right? But then I look at Sky240PWR's build and I think, at least I've been able to drive a little bit in mind.Chase and John Haley Motorsports should be finishing up by next week.

[a_ahmed]

^lmao

[nisstek2]

ajax..i am way excited about your build. i cant wait to see the dyno on this thing. hope everything comes together the right way whe you get that crazy awsome machine running again. i think the n/a ka's are great. i hope my engine looks as good as yours one day (if i would ever get time to start on it lol)

[Ajax]

Thanks. John Haley Motorsports is cleaning everything up and doing a few other things to get it ready for the dyno- hopefully set for this Friday afternoon.

[IanS]

Thanks. John Haley Motorsports is cleaning everything up and doing a few other things to get it ready for the dyno- hopefully set for this Friday afternoon.

You should try and get a hold of a video camera for the dyno pulls. Maybe Chase or Lindsey have one. I will be bringing my camera for sure, but it shoots cruddy video.

[Ajax]

My sister has a video camera I can borrow- not sure on the quality, but its all they've got.

[Ajax]

Okay, time to update I guess. Dyno was a bust this weekend- tuner had outside-of-shop issues. Tuesday looks possible.Note- car may have been overheating because the KA tps is opposite the Q45 TB- thus causing 100% throttle level of fuel at idle, much less than when the throttle was actually opened. Hopefully Chase will fill in the details.Honestly- the Q45 TB upgrade was, in retrospect, a poor choice- it has caused more problems than gains so far. It may work out in the end, but if someone is following along my route, please make note of all my mistakes (mainly due to trying to finish things on schedule, and discovering new problems because of solutions...)

[Silent_NightR34]

Can't you just swap the ground and power wires for the TPS to reverse it?

[Ajax]

That's probably what was done to fix it, I'm just letting everyone know.

[Bigvinnie]

Thought- the z32 MAF is overkill for the hp levels I'll be looking at. But, will it be detrimental? Should I step down to an N60 Maxima MAF?

I know this is a old post but you only have to consider idle quality between the N60MAF and the N62 MAF. Idle may run a little rough using the N62 over the N60, but then again you are using a q45 TB so who knows?I've only used the stock TB and noticed that idle isn't as smooth with the N62, so I've stuck with the N60.Good luck on your dyno man, I've seen you posting for over a year on this build and it's coming down to the last few hours!

[Ajax]

Its come down to the last few hours about 10 times now...We went with the N62 primarily because the ebay n60 I got didn't work.

[Ajax]

Okay, so I was waiting until I had a digital copy of my dyno sheet, but its taking too long.At John Haley Motorsports, the car put down 177whp peak. The torque hit 165 at @2500 rpm and didn't let up until about 6500. Rev limit was set at 7500. Fuel used was 92 octane with a slight mix of leftover octane booster- I can now fill up with straight 93.The torque is nice on the highway- no need to downshift. However, its inconsistent right now. I'm having stumbling problems. Saturday night, I took it out and it seems to be okay when idling and when the throttle is pegged. Part throttle response sometimes works and sometimes feels like the engine is going to die and leave me stranded on the highway.Chase believes its the IACV with a rigged connector that shakes loose.I have pics and a vid on my sisters camera that has yet to be uploaded, but I figured I'd at least update where I'm at.Next phase of power will have to include a custom header and exhaust. Other than that, I just need it to perform consistently.

[a_ahmed]

Can the IACV be completely removed? Can't the idle be set to something like old school cars and be stuck at that and be done with it?

Just a stupid question... IACV gives trouble all the time...

What about your TPS, I am having some issues on my KA with it too..

[Ajax]

IACV removal will be a possbile fix. It was running without for a while. I wanted to run it so I'd have some adjustability and cold idle functionality, but if that is the problem, I'll just delete it.TPS should have been reset when it was rewired for the Q45 TB, so theoretically, that should not be the problem either.

[a_ahmed]

I was asking because I'm not quite sure what the downside would be? Old school cars never had this kinda fancy mechanism... what would be the downside?

What's the procedure to do it right? I never quite ran across one... I would definitely want to get rid of mine as it's a pain the a**.

[Bigvinnie]

Ajax,

would you happen to know what the I.D. plenum volume is?Does excessive have any info on this, have you measured by filling it with water before your install?

[Ajax]

I was asking because I'm not quite sure what the downside would be? Old school cars never had this kinda fancy mechanism... what would be the downside?

What's the procedure to do it right? I never quite ran across one... I would definitely want to get rid of mine as it's a pain the a**.

My Q45 TB has an adjustment screw that allows you to adjust (obviously) the angle of the throttle plate when at rest. So you can determine how much air flows through. I haven't checked the KA TB for the same, so I don't know if it would work the same.Doing this will eliminate any sort of cold idle/hot idle change, so driving in cold weather might suck.

[Ajax]

Ajax,

would you happen to know what the I.D. plenum volume is?Does excessive have any info on this, have you measured by filling it with water before your install?

There are too many holes to fill with water (since I got the extra hole for the IACV. Xcessive has it on their site now, though- 3.4Litres. Yeah, its a bit big for NA, and at some point, I may have a custom plenum made using the same bolt holes and what-not. Then maybe do some back to back testing to figure out the better size.

Its been working well the past 2 days- no major stumbling. Which doesn't really make much sense. Saturday it was hardly driveable in the evening, didn't drive Sunday, now I haven't had any problems- WTF?