This setup belongs to Blake from Spartanburg. He has the CLEANEST BB4 Prelude that I have ever seen.

JDM H22a
Jun Cams
11.5:1 Pistons
Stock Rods
Extrudehoned Intake Manifold
DC Header
3" exhaust
Adjustable FPR
Tuned on Crome Gold

Blake was previously tuned by another shop, but has since made a few changes, including adding the cams.

For those wondering about the slight fluctuations on the chart, it's basically a symptom of out of spec valve lash which the customer will be adjusting.



Edit: There is still some more left in this setup with the right headers. You guys remember Barnies RSX-S, how it had a bump in the midrange. Notice how this chart has it as well. They are both running DC headers. It's like I mentioned before, DC headers are designed for mid range and show as a bump in the mid range. This doesn't make them bad headers or good headers, it is simply what they were designed to do. Just thought some of you guys may find that interesting.

 

Not bad for a DC. Is it an otherwise stock head? What's the bore? The torque leads me to think it's not 87mm. Thanks for posting the dyno.

-P

 

OP, why would you tune a engine with the vavle lash out of spec?

 

Nice numbers for what it is
good job

 

Looks like the 1st dyno is with the stock cams and the 226 is with the jun cams so he gained in torque also. Remember jun cams are circuit racing focused on torque and a fat power band.

 

204whp with 2,156cc with 11.5:1CR on "stock" cams is unlikely on a DC header. I can definately see it with a better header and Type-S cams but not run of the mill JDM/USDM through a standard DC in my experience. Either way 226/168 is decent. Would really shine with a better header and some rod bolts.

 

That's a really strong engine. Is the engine sleeved (if so, what bore) or are you running the Mahle Gold pistons? Hitting 200whp by 6400rpm, nice . My engine doesn't hit 200whp until 7k rpm with Pro2's and Type-S pistons.

 

When I saw the thread title, before I clicked on it, I quessed 220whp. But when I saw the chart I was surpriced; 226whp and and an awsome torque curve to go with it. Gotta love the Jun's. Deffinently get a better header on this setup.

 

nice power for a simple setup!!

powerband looks very identical to my h...it's a mahle .25 over 11:5 piston and skunk pro 1. i put down 237/172 on a dyno dynamics.

i'm making about 10+ more whp in the top end...mine starts to drop about 8200 rpm.

it's good to see mildly built H's making some decent power. toss a real header on there and pull 10-12 whp on the top end!

 

In for better header results

When I had my C5 motor and was stuck with my craptastic DC JDM I heard it constantly lol

"Dude, you need a hytech!"

 

The customer says it's stock valves and stock bore.

For the record, the car had the cams installed already by the customer when the base run was made.


Excellent question. Statistically, the majority of customers are probably out of spec even though we instruct customers to set the valve lash beforehand, especially on k series motors before tuning.

It wasn't bad enough to be heard but it was off enough to show on the dyno chart and if it can't be heard then it's still within acceptable limits for tuning purposes. Keep in mind that picking up such faint mechanical symptoms is only possible through our Dynojet software. We adjust the sampling rates, feedback parameters and a whole host of other settings that help us to not just precisely tune a vehicle but to also diagnose any faint mechanical abnormalities that would otherwise be missed. As a result, any abnormalities, regardless of how faint, show up on the charts. I've said this in the past numerous times, we are realistic and practical with everything we do and our approach to tuning is no exception.

 

nice I would like to see the good header on this set up

 

not bad at all... like everybody else said, great numbers while using a dc header. im sure he could tack on another 10whp with a better header

 

Agree, I would of much preferred a better breathing header designed for power througout the rev range. I would also like to see this car on E85.

 

Guess u were right the 204 was with the jun cams. So that's a rocking good tune u guys did on the car with the dc header and all.

 

I'd say overcammed.

 

I'm not convinced of that. I think it has more to do with the Skunk2 Intake Manifold and Header I used. Plus I'm running a cat, have yet to do any cam gear tuning, and had an issue with the intake. I'm going back to the dyno soon with a better header and to do some cam gear tuning...guess we'll see how it goes.

 

the header and manifold are killing its racing power. What intake is he running?
________
Suzuki gn125e

 

A generic intake. I dont' even remember what it was.

 

Me too mos def need a better header. Man still love the set up if I ever put one into my 3rd gen prelude its what I'd like to do.

 

Great results for another crome tuned car.. impressive..

 

You have the dyno chart? I'm going to run some Pro 1's in my head build. Also did you degree the cams? What is your complete set up?

 

PM'd you. :D

bump!