Turbocharged BTCC SR20 - 1000bhp

[Imarvin240]

Don't worry about all the people saying do a VE. I myself actually am doing a stroked VE, but i love seeing rare/new/extreme swaps. I personally get tired of the same old basic swaps, but hey to each his own with his own money also, great job on the build so far.

[Teigen]

Originally Posted by Imarvin240

Don't worry about all the people saying do a VE. I myself actually am doing a stroked VE, but i love seeing rare/new/extreme swaps. I personally get tired of the same old basic swaps, but hey to each his own with his own money also, great job on the build so far.

Thanks mate, hows the displacement in your ve? 2,3?
Flow tested the head of mine to a lot over 1000bhp
Lift is have is 13,1 so will be getting enough air in hehe, a ve head would never beat the btcc head.
Doing some small stuff every day, minor parts but its often the most time taking.
Like alternators adjusting, making newparts and such. Will post up some pics during the weekend of new smaller things that has been done.
Yesterday I was in sweden, picking up the new cylinderhead for my brothers Volvo 242 16v. Quite extreme that too.

[STR8E180]

Originally Posted by Teigen

a ve head would never beat the btcc head.

mate your dreaming if you think your BTCC cylinder head will out perform a ve cylinder head

im not doubting your BTCC cylinder head isnt better then a sr20det cylinder head but i doubt it will out perform a ve cylinder head
i just think your making a BTCC cylinder head out to be better then it actually is

micks motorsports is running into the 6 second bracket with a ve head
ben bray is running in the 7 second bracket with a billet block ve head
Dps imports is running in the 7 second bracket with a ve head
There is more but that's all I can remember off the top of my head

[ForeignMuscle]

Originally Posted by Teigen

a ve head would never beat the btcc head.

I'm going to have to side with str8e180 on this one.. Although, I promise I am not criticizing your decision because in the end it is YOUR build and not ours. Your ports do look massive when compared to factory de ports, but there is no way you can truthfully say that a ve wont out-perform the btcc head. The ve is the be all, end all for the sr20, hands down. Not only are the ports larger than the btcc's in stock fashion, but variable lift and valve timing make it even more amazing. You could do all that nice porting to the ve head just as you have for the btcc. The shaft mounted rockers are the best design for the sr20 by far. No matter what you do you will have problems with the rockers un-mounting themselves at high rpm. A dual guide shim setup is the next best thing, but still it doesn't compete with the ve head, which Mazworx uses to rev out 13k rpm.

I love this build and I think it will shake the earth when it hits the track, but there is no denying the ve head's performance despite the rarity of the btcc head. This build will be different and I applaud that. I look forward to seeing the finished product. It is on a completely different level compared to most of Zilvia's builds. Keep up the hard work!

[STR8E180]

Originally Posted by ForeignMuscle

I'm going to have to side with str8e180 on this one.. Although, I promise I am not criticizing your decision because in the end it is YOUR build and not ours. Your ports do look massive when compared to factory de ports, but there is no way you can truthfully say that a ve wont out-perform the btcc head. The ve is the be all, end all for the sr20, hands down. Not only are the ports larger than the btcc's in stock fashion, but variable lift and valve timing make it even more amazing. You could do all that nice porting to the ve head just as you have for the btcc. The shaft mounted rockers are the best design for the sr20 by far. No matter what you do you will have problems with the rockers un-mounting themselves at high rpm. A dual guide shim setup is the next best thing, but still it doesn't compete with the ve head, which Mazworx uses to rev out 13k rpm.

I love this build and I think it will shake the earth when it hits the track, but there is no denying the ve head's performance despite the rarity of the btcc head. This build will be different and I applaud that. I look forward to seeing the finished product. It is on a completely different level compared to most of Zilvia's builds. Keep up the hard work!

Well said mate
That's exactly my point

[Teigen]

Point is that I don't even care a little if XXXXX runs low 4 secs or xxxxxx runs low 5 sec with a billet VE head, i'm building

I'm not building this car for any specific class or racing series, Will do some timeattack but still want to maybe try other things.

I know VE is a good head and that it performs well, If i wanted one I would already had one. Thing is, I want this car to be different from everything else.

When you think of a 200sx/240sx/S14 within racing/motorsports, the picture is a sliding driftcar. Here in Norway, I have never seen a Grip/timeattack Silvia IRL all those years, so thats why I bought it, make a grip car be different.

When tinking of SR2X engines and tuning, everyone does a VE swap, I thought "hey, I'm gonna do it different"


So what is more different than a GRIP Silvia with a DE head ? At least here where I live its nothing I've ever seen.

you can call me a sick fuck with a disturbed brain but I like doing things different and spending much effort to even the smallest piece of the car.

I could probably sell just the BTCC Magnesium Valvecover itself to a museum or collector and buy a complete VE head for the money I could get for it.






Last update pic lol

58mm port, still having clearance to waterports etc
and btw the btcc primeras did up to 10500 rpm and didnt have any special rocker arm troubles, + the DE sr20 won the total BTCC in the late 90s.
And please don't doubt me on this, this thing I know


Peace