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Old 04-07-2021, 03:50 AM   #1
SkeTchy-MechAniC
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Thumbs up Dyno results NA KL-Racing T5 cam

Just finished dynoing the b230FB. The cheap camshaft performed way better than i could have hoped. It made for a really fun engine to drive since it pulls hard all the way to the rev limiter @8150 while still producing plenty torque at the lower revs. Idle is sexy too..

Build tread is hiding here somewhere, Specs are in there but shortly:

530
46/38
KL-T5
GSXR1000 ITB's
4-2-1 header
stock turbo rods
stock FB pistons
squirters

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Old 04-07-2021, 04:16 AM   #2
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Nice results!
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Old 04-07-2021, 07:04 AM   #3
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Sweet!
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Old 04-07-2021, 07:45 AM   #4
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This is a great result. Is there a before and after or is this the first go?
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Old 04-07-2021, 08:27 AM   #5
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i didn't know these lumps of pistons could go that fast

what was done to the bottom end, re-ring, hone, and a balance?
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Old 04-07-2021, 08:31 PM   #6
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I read 46/38 as the turbo size not the valve size.

Those are good numbers.
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Old 04-08-2021, 03:44 AM   #7
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Quote:
Originally Posted by esmth View Post
i didn't know these lumps of pistons could go that fast

what was done to the bottom end, re-ring, hone, and a balance?

neither did i

Bottomend is stock low mileage, Started off with the rev limiter @7k since my old b23e lived there all the time with it's heavy internals but the hp graph wass still rising, So moved it to 7.5, still didn't seem done so we had to know, And these engines have pretty stout internals so we took the risk and it payed off.

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Originally Posted by shoestring View Post
This is a great result. Is there a before and after or is this the first go?
Spend 2 days on the dyno tuning it. At fist we had some ignition problems but that turned out to be a failing 0124 module retarding timing with rpm. After that most time went in the tune and cam settings. Cam ended up being just fine straight up.
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Old 04-08-2021, 12:03 PM   #8
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Nice numbers! The stock b230 bottom end is pretty darn stout, and the rally car spent a lot of time over 8k rpm with a completely stock bottom end.
I remember your ITB setup form some of your other posts, glad it's working out well! This really goes to show how restrictive the stock intake manifolds are, and that ITBs can still have good low end torque!

A few questions
Is this wheel horsepower or calculated crankshaft hp?
What CR did you finally land at?
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Old 04-08-2021, 12:04 PM   #9
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Nice!
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Old 04-08-2021, 12:07 PM   #10
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Quote:
Originally Posted by esmth View Post
i didn't know these lumps of pistons could go that fast

what was done to the bottom end, re-ring, hone, and a balance?
1. They are not that heavy
2. 80mm stroke makes for fairly tame piston acceleration and top speed

PS, OP, looks like an awesome power curve. Congrats!
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My knob has a big chunk of steel on it

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Old 04-08-2021, 05:43 PM   #11
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Great job!!! That car must be a blast to drive.
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Old 04-08-2021, 06:10 PM   #12
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Way to go! That's a lot of fun in a brick.
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Old 04-09-2021, 02:38 AM   #13
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Thankyou guys!

I'm verry happy with the results.
HP is crank hp and compression ratio should be close to 8.5 dynamic, I took a comparable catcams cam to do the calculations. Cant wait to drive this thing some more, But first have to finish it for MOT. Fuel used is btw euro 98 (5%ethanol)
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Old 04-13-2021, 09:01 AM   #14
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Il love my Klracing T4 on B230 with Kjet injection.
Never go 8000rpm, try to not go more than 7500 with my stock rebuild B230E engine.

Why do you use turbo piston on NA application? you get a lower CR.
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Old 04-13-2021, 03:18 PM   #15
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Nice results!
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Old 04-14-2021, 08:19 AM   #16
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That's with 8.5:1 compression ratio!?
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Old 04-14-2021, 08:50 AM   #17
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Quote:
Originally Posted by esmth View Post
i didn't know these lumps of pistons could go that fast

what was done to the bottom end, re-ring, hone, and a balance?
I turn the gold car to 8500 on stock na pistons, it'd probably go to 9 if I wanted to
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Old 04-14-2021, 10:12 AM   #18
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Quote:
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That's with 8.5:1 compression ratio!?
Dynamic!
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Old 04-17-2021, 01:08 AM   #19
122power
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Whats the static?
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Old 04-17-2021, 06:54 AM   #20
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Pistons are NA, Just the 13mm turbo rods and the static cr is ~12:1
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Old 04-17-2021, 07:36 AM   #21
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nice numbers.
What kind of flywheel are you using?
I would be kind of nervous if it is a heavy stock cast flywheel...
With rpm's like that forces on a stock flywheel will be very high; i'd use a lightweight steel flywheel
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Old 04-17-2021, 10:32 AM   #22
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personnaly i use a Rsport copy flat flywheel (less than 6kg)
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Old 04-19-2021, 02:31 AM   #23
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This is with the stock dogdish type of flywheel, Ain't to happy with it either.. Got a lightened flat one ready but didn't have the time to swap it in yet. With the lighter flywheel i'd also expect to see a slight power increase on the dyno since it frees up some of the lost horses that are otherwise lost in spinning that heavy ******.
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Old 04-19-2021, 05:23 AM   #24
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my flywheel :


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Old 04-22-2021, 06:45 AM   #25
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This engine would rock the **** out of everything in a 360 racecar :D
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