SOCAL91Q45a wrote:$5k - $10 for 7-8 PSI of boost to run safely on STOCK internals seems a bit .... short sighted. I feel good about the stock crankshafts, however the rod/pistons and misc hardware concerns me in a boosted application. Id rather find a proper set of forged rods, pistons and new bearings, THEN boost it to 10+ PSI :-)
But I guess we need to start somewhere .....
Bolt it on till it blows ?
The only requiem for a change in boost would be a controller and adequate fuel & timing maps. I was thinking, quoting, etc 10k as the *first* system, others would benefit from the jigs/molds being made. Building a motor would only neccesitate a change in turbo internal configuration, and the above management changes.
On a turbo app you'd havemanifolds 2x $750 if cheap ones turbos (Turbonetics) 2x $850 t3/to4 wastegates 2x $225 (Tial)Intercooler(s) 2x $400 or 1x $6-700recircs 2x 250
That's $4850 in parts, providing you can make the intake pipe to utilize the stock single MAF.
I found out today JWT made a 5psi boost program using stock injectors & stock MAF. Only $500 for engine management, that's a steal compared to what it could have been. It would probably be sufficient for 7-8, depends on when the MAF tops out of voltage for the amount of air to achieve 8 psi. After it gets to ~4.8v, you'd have to do a twin Q MAF or Ford Cobra, Z32 MAF setup, either single or twin.
Piping labor (mandrel bent aluminized, ceramic coated, or stainless) would be estimated at 25hrs (very conservative, Merry Christmas) approx $1625 plus $300 for piping materials = $7275 barring incidentals. Add an additional $650 for installation $7925.
Once the first one was done, there would be about $1000 saving on not having to make the piping from scratch.
I'm coming up with $7925 first, $6925 subsequent, installed, with high quality parts. Don't forget about the battery relocation & clutch fan delete, necessitating electric fans.
A supercharger would be less expensive, head units are cheap, bracketry would be easy enough to do on CAD, the expense would rise if it were air/air or air/water aftercooled, but at least we know there's management available, that was a biggie.
Someone mentioned earlier that AGM & BRM (BAD) have already gone through this, it's not new. I guess the turbo part is still kind out there, but it's being worked on, too. Dunno what the story is with the BAD Vortech or Paxton car, but like all projects, they progress quickly to a certain point, then usually wind up sitting around for a while, it happens.
