Tuned 4AGE results

[Bean]

@max78 if your exhaustpipes are still original try replacing the last bit going over the axle to the muffler (usualy there's a kink in it and from there the diameter gets smaller, which is a big restriciton)

[mcm95403]

Hi Guys,
I'm looking at buying a set of Catcams for my new engine. I have an 86 MR2 (sorry, no AE86) with a blacktop 6 speed conversion. I'm doing a complete wiring harness swap so that I can run all of the 91 high compression parts - computer, knock sensor, big injectors (215cc I think), etc. I also have or will be using:

Complete small port bottom end
blacktop rods
approx 11:1 compression (TRD .8 mm HG and .020/.5mm shave on the head, and 10.3 pistons)
Total Seal rings
Custom "mid port" head - this is a big port head with the intake ports slightly reduced in size. I will also be port matching a small port intake to fit. Doing this on a mill so that I can take out material about 3" into the intake port. O/S valves, will do some porting in the bowls and also on the exhaust side of the head, running toda springs
TRD header (will later be replaced with a BT header and custom pipe) with mandrel bent 2 1/4" stainless exhaust
light flywheel (4.7kg)
adjustable cam gears
low drag water pump
under drive pulleys for alt and h2o pump, light crank pulley
6 speed with 4.529 gears and the wonderful close ratios - can you tell I LOVE the 6 speed!?!?!?

My problem is, I live in California so I have a problem passing smog testing if I change too much. I'm wondering if anyone has video with sound of the Catcams7105137 cams. I think those would be best suited to the rest of the engine. I'd like to hear the idle quality.

Full info on my car on my website as listed in my siggy.

Also, wondering if you guys are running on roller type dynos.

Here are a couple of videos of mine on the dyno I'm using:

http://www.youtube.com/watch?v=bSxJCrPRcKo

http://www.youtube.com/watch?v=qyLY1wPqt...re=related

[tolisspi]

mcm95403
is the result on the wheel or on the crankshaft?

[Bean]

tolisspi Wrote:mcm95403
is the result on the wheel or on the crankshaft?

they'll be on the hubs most probably as on most dynapacks - hubs to fly/crank difference isn't much usualy <10%

[mcm95403]

Bean Bandit Wrote:

tolisspi Wrote:mcm95403
is the result on the wheel or on the crankshaft?

they'll be on the hubs most probably as on most dynapacks - hubs to fly/crank difference isn't much usualy <10%

That is HP at the wheel only. The dynapack typically reads lower than a roller style dyno, but it's also supposed to be more accurate.

We usually figure on 15% drivetrain loss with the transaxle though. The MKIII (Spyder) is lower at about 10% - but they don't seem to last either

If I hit 130 on the dynapack, I'll be very happy!

[meshin]

robokill Wrote:134.8 Rwhp and 150.4 NM on the wheels

Only with Catcams and stock ECU you got 134 WHP .. .. that's awesome couseI was thinking about them
What is result on Flywheel ? Thet should be then 160 HP @ Flywheel ..

[Bean]

meshin Wrote:

robokill Wrote:134.8 Rwhp and 150.4 NM on the wheels

Only with Catcams and stock ECU you got 134 WHP .. .. that's awesome couseI was thinking about them
What is result on Flywheel ? Thet should be then 160 HP @ Flywheel ..

robokill Wrote: Sticky this one lets make a large thread out of it. One point post if its WHP or HP ?

My engine:

7 ribbed 40mm crank
81.5 mm toyota pistons
Ported bigport head
182CC injectors
260 in 9mm lift (Catcams: 7105137)
252 out 8.5mm lift (Catcams: 7105137)
Standard intake with open air filter
Standard ECU
Super 98 unleaded fuel

Stadnard header but cut at the 2-1 juntion to fit a 55mm diameter exhaust under axle.

This results into:

134.8 Rwhp and 150.4 NM on the wheels

On ideal situation I would be running 210CC injectors (which I have laying around) Engine is running a bit lean and I have a power distortion at 7400 rpm

never the less very impressive

[mcm95403]

For Robokill and anyone else running high compression:

Have you done a compression test, and if so what pressure did you see? I did one on my new engine last night and got 185-190 psi (13 kg/cm2). I'm wondering if I'm in the same range as the rest of you.

I ended up with the block decked .010" and the same amoutn taken off the head, plus a TRD .8 head gasket and smallport pistons at .5mm oversize.

Still running stock cams for now, but want to go with the Catcams 260/252 combo later.

[Bean]

my compressiontest showed 14 on all 4 pots on stock engine but my tester is quite old and had a tough time - need to have it checked but at least I know they are all the same
sorry guess my post isn't realy helpfull, nevertheless interested in the results

[oldeskewltoy]

tough to get ACCURATE results when you have swapped in cams....


compression tests use a pressure, measured in #s This is based partly on piston and cylinder... but a 2nd variable is when the cam opens and closes....allowing the air in and out


LOOOONG duration cams will have "relatively" low #s