'04 SRT-4 engine in an '88 Caravan build

[Reaper1]

You could still use a solid line it you wanted, you just have to account for the expansion. The 16V Masi engines did this. Basically you make a simple loop ion the line someplace like a spring. One coil is fine. That way there is give in the line and you can still have only 1 part. This is done a LOT on all kinds of turbomachinery.

[A.J.]

No pictures today. I forgot my camera.

I got my airbox dilemma solved, '91-'95 Caravan 3.3/3.8 airbox. Fits perfect, same size air filter as the '88-'89 turbo cars, it pulls air through the computer like I wanted, and I can keep my full size (and brand new) Optima battery. I just have to build a custom tube/hose from the airbox to the turbo. Either the distributor or the cold side intercooler plumbing is in the way to run the factory hose.

I got my exhaust manifold back today. It's a ****ing work of art. I have some porting to do to match the flange to the runners and clean up the cuts the welder made to the opening behind the turbo flange. I also need to get the turbo flange resurfaced because it warped a little due to the heat of welding. Since there is no gasket it needs to be flat. The flange for the head didn't warp because I gave him a spare head to bolt the flange to while he was welding.

I also got my 65 PPH injectors to replace the flex fuel injectors I was using.

My goal is to be able to drive it on the street by Saturday. Thanksgiving is going to mess that up for me but I'm going to try like hell. Three weeks from the day I pulled the engine I got it started. Five weeks from the day I pulled it it'll be on the road (I hope). I'll still have to tune it and I don't know if I have the correct stall converter. If I don't get it tuned in time for emissions I'll just leave the wastegate arm disconnected so I can't get any boost. That way the retards doing the emissions test won't fudge anything up.

A.J.

[A.J.]

I took some pictures today. The ones I wanted to yesterday. I'm not going to have this on the street by Saturday. The parts I needed for the airbox to turbo hose/tube I couldn't get locally for what I wanted to pay so I had to order them.















The outlet of the airbox is 2 3/4" oval and the turbo inlet is 2 1/2".



There was a baffle/reducer inside the airbox that snaps in. I removed it to flow more air.



A.J.

[turboshelbys]

So close...

[A.J.]

Ya. I ordered the silicone hoses for the air intake yesterday and they shipped by USPS already. With the holiday and the weekend, maybe I'l get them by Monday and Harry and I can start tuning.

A.J.

[turboshelbys]

Rock and roll, Happy Thanksgiving!

[tryingbe]

I bet I have the rubber hoses that can get the car running...

What size ID do you need?

[turbovanman²]

Very cool, and agreed, soooooooo close.

I remember doing my TIII, took me 1-1.5 weeks, what a thrash and near the end, your so tired and fed up due to all the small things,

[Vigo]

Dont want to seem negative but when you say the 3.3 airbox has the same size filter as the 2.2, thats not a good thing. That filter is way too small for even a stock 3.3. You can tell because if you put a cone filter on the same hose on a stock 3.3, you get a noticeable power boost. Thats with 150-160hp..

Look at Simon's thread where there is talk about air filters, and you'll see filters with probably 5-6 times the surface area of that tiny filter. If you do decide to run it, i would put a vacuum gauge between the airbox and your turbo and see how much vacuum the turbo is pulling behind that filter.

Otherwise, rock on.

[A.J.]

I bet I have the rubber hoses that can get the car running...

What size ID do you need?

I need a 2 1/2" elbow for the turbo and a 2 3/4" elbow for the air box. I wouldn't sweat it. If I end up getting work on Saturday I won't get to that point anyways.

Very cool, and agreed, soooooooo close.

I remember doing my TIII, took me 1-1.5 weeks, what a thrash and near the end, your so tired and fed up due to all the small things,

Ya I could have at least had the turbo on last night but I had to make a turbo to manifold gasket because the turbine flange is warped, I though it was the flange on the manifold because it was welded. I'm not taking the turbo apart to resurface the turbine flange so I got some gasket material from the diesel shop I've partnered with to get it done.

Dont want to seem negative but when you say the 3.3 airbox has the same size filter as the 2.2, thats not a good thing. That filter is way too small for even a stock 3.3. You can tell because if you put a cone filter on the same hose on a stock 3.3, you get a noticeable power boost. Thats with 150-160hp..

Look at Simon's thread where there is talk about air filters, and you'll see filters with probably 5-6 times the surface area of that tiny filter. If you do decide to run it, i would put a vacuum gauge between the airbox and your turbo and see how much vacuum the turbo is pulling behind that filter.

Otherwise, rock on.

I wouldn't take it as negative. We all come at things from different experience levels and perspectives. I like your idea about the vacuum nipple to check the possible air filter restriction. I'm going to try the 3.3/3.8 air filter box just like I'm keeping my solid oil pressure to turbo line, in the beginning. If things pose a problem, when time and money permit, I can then upgrade. I also have a K&N air filter I stopped using because I thought it was letting too much dirt through. Then somebody said it could be the box that's not sealing. So I could try that filter also if the paper filter is a restriction..

A.J.

[RoadWarrior222]

your so tired and fed up due to all the small things,

I'm feeling that feeling, and I'm all tryna do is put a header and exhaust on... it should finally be coming together...

[A.J.]

I have it all together except for the airbox to turbo but I got those elbows today so tomorrow it'll be on the street.

IT RUNS!
http://www.youtube.com/watch?v=fP3Kr...B_QVpSPZpRQIZw

IT DRIVES!
http://www.youtube.com/watch?v=cHhx5...B_QVpSPZpRQIZw

For the radiator hoses, I used the upper hose from an SRT-4 Neon for both the upper and lower hose. I just had to trim a little off one end.

But the stall for the converter is WAY wrong. If anybody has any suggestions I'm all ears. The SRT-4 Neon never came with an automatic and the PT GT has a 4 speed and feels kind of sluggish to me and neither had a distributor type ignition system. So I think I'm going to have to do a dyno run, find out my torque/power curve and have one built.

I also have a few more manifold pics that I forgot to take under the turbo flange.





A.J.

[turbovanman²]

But the stall for the converter is WAY wrong. If anybody has any suggestions I'm all ears. The SRT-4 Neon never came with an automatic and the PT GT has a 4 speed and feels kind of sluggish to me and neither had a distributor type ignition system. So I think I'm going to have to do a dyno run, find out my torque/power curve and have one built.

A.J.

What converter and stall did you get?

I found that with my van, I need a ton more timing than I should or any other 16v 5 speed build, otherwise it was a total dog. That's probably the case with you. If you have adjustable cam gears, advance the cams a few degree's. What gear ratio do you have? Same as before?

[A.J.]

What converter and stall did you get?

I found that with my van, I need a ton more timing than I should or any other 16v 5 speed build, otherwise it was a total dog. That's probably the case with you. If you have adjustable cam gears, advance the cams a few degree's. What gear ratio do you have? Same as before?

I don't know the stall I have. I bought a stock converter for a '98 2.4 N/A Caravan. When you say more timing are you referring to just cam timing or ignition timing too? I'm running 12 BTDC now. I don't have adjustable cam gears. My gear ratio is stock '98 2.4 N/A Caravan. I think it's 3:55ish.

A.J.

[turbovanman²]

I don't know the stall I have. I bought a stock converter for a '98 2.4 N/A Caravan. When you say more timing are you referring to just cam timing or ignition timing too? I'm running 12 BTDC now. I don't have adjustable cam gears. My gear ratio is stock '98 2.4 N/A Caravan. I think it's 3:55ish.

A.J.

My cams are 2 deg advanced, I found it helps off the line.

More total timing, done thru the cal, I had to add alot.

So you should be fine with the converter, I ran a Neon unit and loved it, so peppy but the down side was I couldn't spool the turbo at the track.

3.55? maybe you mean 3.05?

[A.J.]

Ya, 3.05. I'm gonna have the airbox done tomorrow and then spend the rest of the day tuning. Maybe we can make some improvement. Right now I have my 2.5 cal in there scaled to 65 PPH injectors.

A.J.

[GLHNSLHT2]

Here's how you post youtube in the thread. You click the little video icon and post the URL in it.





---------- Post added at 07:52 PM ---------- Previous post was at 07:47 PM ----------

sounds good.

[GLHNSLHT2]

The plastic PT intake manifold is 15 dyno proven hp FYI

[A.J.]

Here's how you post youtube in the thread. You click the little video icon and post the URL in it.

I don't know what icon you're talking about. I click on "share" and a URL pops up. Then I copy it and paste it.

The plastic PT intake manifold is 15 dyno proven hp FYI

Which one? The plastic N/A or turbo one? Either way it doesn't matter for me. I like aluminum.

A.J.

[GLHNSLHT2]

The one to the right of the Image icon. 2nd from the right. looks like a little film strip. Just click that and post the shared URL in it.

The later turbo one. Supposedly it's smoother inside and doesn't suffer from the heat soak the aluminum one does. Ever think of running a 2.4 n/a van intake? Or a modded one with a big plenum?