Long Rod 2.2L HTA3582R Twin Scroll

dsevo · Aug 5, 2009, 12:18 PM

Well, it was a rough night at the dyno, but I thought you guys would want to see the numbers for comparison sake.

-4G64 long Rod 2.2L
-HTA3882R Turbo
-Revolver Cams
-All the usual other stuff

It pretty obvious this motor will shine on E85, but 22psi on pump gas just isn't into the sweet spot of the turbo. The car only made one pull on E85 before blowing a freeze plug out of the block. Going from 22 psi on pump gas to 28 psi on the first E85 pull netted 140HP and 120 Ft/lb increase. Thats 23 hp/psi, which seems pretty good to me. My tuner also said that pull was very rich and the car would make around 600whp at the same boost when properly tuned. That leads me to believe it should be well in the 650+ range with mid 30's boost.

He also thinks its very likely that that HG is fine because 1.) I used crappy freeze plugs (I didn't know any better), and 2.) There was no water in the oil and the overflow reservoir didn't overflow. I'm hopeful that I can just replace the freeze plugs with OEM ones (I used Doorman from Autozone) and my problem is solved.

I also think its possible that there was an air pocket in the cooling system because I just put the turbo on and the car had only been run a couple times since doing so.

Anyways, here's the graphs. I'll keep you guys updated.

Joshs EVO · Aug 5, 2009, 12:52 PM

Sweet!

Freddy302 · Aug 5, 2009, 01:19 PM

Nice combo! what rpm did you hit 28 psi in third gear?

94AWDcoupe · Aug 5, 2009, 01:24 PM

when you install freeze plugs dont install them with a socket that fits inside. this is common mistake. your stretching the plug and loosing the tension that holds them in place. they need to be installed by pressing them in by the rim.

dsevo · Aug 5, 2009, 01:31 PM

Quote:

Originally Posted by 94AWDcoupe

when you install freeze plugs dont install them with a socket that fits inside. this is common mistake. your stretching the plug and loosing the tension that holds them in place. they need to be installed by pressing them in by the rim.

Yeah, I learned that last night, lol. This time it was definitely a green mistake. Are there tools specifically for that or do I just use a bigger socket?

Do you think it's possible that the HG is fine?

dsevo · Aug 5, 2009, 01:31 PM

Quote:

Originally Posted by freddy302

nice combo! What rpm did you hit 28 psi in third gear?

4200 rpm

jid2 · Aug 5, 2009, 01:36 PM

Always a saga. But it looks like you will be making serious power when it's sorted. Over 600 whp should be stupid fast as they say.

Do some 3rd gear street pulls once it's tuned and going well, so we can see boost profile. Dynapacks load the car to start the run, so that will create a different boost profile.

Drifto · Aug 5, 2009, 02:38 PM

That's gonna be an awesome street car with that kind of response. Great job on selecting the parts... minus the freeze plugs

bambooi · Aug 5, 2009, 02:52 PM

Your torque is falling off pretty fast with that big turbo. I wouldn't think it would drop that fast. Any thoughts?

dsevo · Aug 5, 2009, 04:19 PM

Quote:

Originally Posted by bambooi

Your torque is falling off pretty fast with that big turbo. I wouldn't think it would drop that fast. Any thoughts?

I'm guessing the 1.00 divided hot side. A bigger one would probably be better, but this is the one that FP sells, and I didn't think it was worth buying a different one. Regardless, 560/500 on a preliminary tune is pretty decent for the boost level and the size of the turbo. I think it is gonna make for a really fun street car.

dsevo · Aug 5, 2009, 04:21 PM

Quote:

Originally Posted by Drifto

That's gonna be an awesome street car with that kind of response. Great job on selecting the parts... minus the freeze plugs

Thanks Walker. Yeah, it never even crossed my mind that freeze plugs even matter. In hindsight, I should have never touched the ones that were in the block originally (they were a ***** to get out).

Freddy302 · Aug 5, 2009, 04:34 PM

Quote:

Originally Posted by dsevo

I'm guessing the 1.00 divided hot side. A bigger one would probably be better, but this is the one that FP sells, and I didn't think it was worth buying a different one. Regardless, 560/500 on a preliminary tune is pretty decent for the boost level and the size of the turbo. I think it is gonna make for a really fun street car.

I dont think it is the 1.00 divided housing.. These are my results.. it is a 2.0 and the HTA86.. Your spool up is killing this set up, LOL.

HTA86 Twinscroll Dyno and Track Results

On as side note when I had the HTA82 at that exact power level. 540hp/500 trq w/ 28 psi and meth I ran 11.0 @ 132 w/ 1.9 60ft. And my power curve looked very similar to yours minus 400 rpm on the spool up. So It is gonna be a REALLY FUN street car, Kudos!

dsevo · Aug 5, 2009, 05:08 PM

Quote:

Originally Posted by Freddy302

I dont think it is the 1.00 divided housing.. These are my results.. it is a 2.0 and the HTA86.. Your spool up is killing this set up, LOL.

HTA86 Twinscroll Dyno and Track Results

On as side note when I had the HTA82 at that exact power level. 540hp/500 trq w/ 28 psi and meth I ran 11.0 @ 132 w/ 1.9 60ft. And my power curve looked very similar to yours minus 400 rpm on the spool up. So It is gonna be a REALLY FUN street car, Kudos!

Good info, thanks

.

I forgot to mention that this is on the stock ECU and MAF too.

94AWDcoupe · Aug 5, 2009, 05:11 PM

Quote:

Originally Posted by dsevo

Yeah, I learned that last night, lol. This time it was definitely a green mistake. Are there tools specifically for that or do I just use a bigger socket?

Do you think it's possible that the HG is fine?

water pressure is 15psi
combustion pressure is 2000psi
it doesnt take much of a leak to over pressurize water jacket and pop out a freeze plug. my guess is you had block and head resurfaced. and one or both was not machined smooth enough to use a metal gasket. most machine shops are not capable of machining the surface smooth enough. matel gakets require a mirror smooth like surface finish.

my guess is freeze plugs are installed at factory using a special tool with the block heated and the plugs cooled. its a very bad idea to remove them for block cleaning. I would recommend using JB weld when installing the new ones.

dsevo · Aug 5, 2009, 05:17 PM

Quote:

Originally Posted by 94AWDcoupe

water pressure is 15psi
combustion pressure is 2000psi
it doesnt take much of a leak to over pressurize water jacket and pop out a freeze plug. my guess is you had block and head resurfaced. and one or both was not machined smooth enough to use a metal gasket. most machine shops are not capable of machining the surface smooth enough. matel gakets require a mirror smooth like surface finish.

my guess is freeze plugs are installed at factory using a special tool with the block heated and the plugs cooled. its a very bad idea to remove them for block cleaning. I would recommend using JB weld when installing the new ones.

I was told red loctite works well. I thought about JB weld, but I am worried it won't be enough because of its thick consistency. Is there a problem with tack welding the freeze plugs, lol?

BTW, I was able to put the freeze plug back in almost all the way by hand, so it obviously wasn't very tight. The rest of them were very easy to get out too.