B20/B18C crank/B18 head/ITB's - 240hp/163ftlb

fah · Post by **fah** » Tue Aug 18, 2009 2:00 pm

B20 Block B18C Crank B18C Head Skunk2 Pro Cams Rods & Pistons ITB's Made 240hp/163ftlb

98vtec · Post by **98vtec** » Tue Aug 18, 2009 7:33 pm

Looks like a fun car to drive!

pb16b · Post by **pb16b** » Wed Aug 19, 2009 8:48 pm

good job. what's the b18c crank bring it down to?

Garrett · Post by **Garrett** » Thu Aug 20, 2009 7:35 pm

holy shit stock head?

fah · Post by **fah** » Fri Aug 21, 2009 4:19 pm

Garrett wrote:holy shit stock head?

lol ...no head was port and polished

fah · Post by **fah** » Fri Aug 21, 2009 4:25 pm

pb16b wrote:good job. what's the b18c crank bring it down to?

i think its approximately about 1933cc

Garrett · Post by **Garrett** » Fri Aug 21, 2009 6:12 pm

which pro cam are used? which header?

marshall.hagen · Post by **marshall.hagen** » Thu Aug 27, 2009 5:26 pm

Garrett wrote:which pro cam are used? which header?

From the 'dip' at 6300, it looks like a Hytech Replica. Good power, nice torque!

Coupe-r · Post by **Coupe-r** » Wed Sep 02, 2009 4:13 pm

why? do all hytech replica cause a dip at 6300??

Garrett · Post by **Garrett** » Wed Sep 02, 2009 6:02 pm

Coupe-r wrote:why? do all hytech replica cause a dip at 6300??

no

marshall.hagen · Post by **marshall.hagen** » Thu Sep 03, 2009 9:58 am

Coupe-r wrote:why? do all hytech replica cause a dip at 6300??

With no way to quantify the dyno results of every type of â€˜Hytech Replicaâ€™ produced, the answer to this question is no. However, all the hytech replicas I have tuned have shown a consistent dip between 6-7k. The magnitude and duration all relatively similar. I know that statement is fairly subjective, because there are many factors that play into how a dynamometer records torque data, but I can confidently say that I believe the dips I have experience with were directly caused by the exhaust manifold. I say this because one of the setups came back to me with a new Skunk2 Megapower manifold, at which point the dip was eliminated without any tuning â€“ just out of the box. (I should throw in that it made ~5% more power on the high cam and ~2-3% more power on the low cam). I have tuned one setup using one of John's newer designs (an actual Hytech manifold), and it did not have any dip. So if someone were to design a knock-off of that exact manifold, there shouldn't be a dip. I do not have any personal experience with John's original design, which is what was sold to Rage (and then proliferated around numerous manufacturing firms) resulting in what we now know of as a 'Hytech Replica'.