Built 347 Miata Build
Built 347 Miata Build Hey guys I was hoping to get some opnions on my build so far and hopefully get some questions answered. Ok so far, got a ls1 block honed to match my mahle 3.908 pistons, eagle rods w/ arp rod bolts, ls6 crank, so i believe this is now a 347 correct?
For heads, I was gonna go with the PRC 5.3L Stage 2.5 heads with the ms4 cam. I want this car to be a high revving, high hp car. I dont care about idle or low end abilities. Its going to be a weekend/track car. Will I have to have the heads machined to match the new bore? And if so should i have them milled to get a little higher compression? I dont want to touch race gas. I have 93 local here. Also the car may see some nitrous but no more than a 150 shot. I've heard the MS4 cam isnt the best for nitrous but 150 is kinda low for a ls1 right?
For intake I was looking at the FAST Ported 96/96 from vengence. Is this an overkill or with the ported 92/92 work?
For heads, I was gonna go with the PRC 5.3L Stage 2.5 heads with the ms4 cam. I want this car to be a high revving, high hp car. I dont care about idle or low end abilities. Its going to be a weekend/track car. Will I have to have the heads machined to match the new bore? And if so should i have them milled to get a little higher compression? I dont want to touch race gas. I have 93 local here. Also the car may see some nitrous but no more than a 150 shot. I've heard the MS4 cam isnt the best for nitrous but 150 is kinda low for a ls1 right?
For intake I was looking at the FAST Ported 96/96 from vengence. Is this an overkill or with the ported 92/92 work?
Talk to PRC to see if decking is even necessary. A 5.3L head is already increasing the CR & if it's a manufaturers stage ....anything, it's probably already decked. Don't have to bore match. Get PRC's recommendation on head gasket thickness & go from there. Nitrous?????????? There are guys doing it in LSX Miata's, but I have no idea why. So, I'll pass on that one. A Ported 92/92 is more than enough. Doesn't really matter which FAST you choose, 'cuz the nitrous is just gonna blow it apart anyway. Good-luck & post your build in the hybrids section. I would like to follow it; sounds interesting.
A nitrous backfire will blow out a nylon intake. Trust me, I've been driving an LSX Miata for over 6 years now. They're not dragsters, they are excellent street & road course cars. Your set up will make plenty of low end torque & HP W/those heads/cam. A ported LS6 intake w/an 85mm throttle body is a good, less expensive, alternative if the FAST isn't a must. I'm the worst guy to ask about nitrous, cuz' I'd never use it, but you could have a great, lifetime, well powered car, if you stay away from it (as long as it's not involved in an accidient). You'll be in the 400/400+ range w/ that set-up. Keep the car low weight & she'll have an as good or better power to weight ratio than most supercars.
Hey guys its been a long time now since ive posted but ill let you know whats going on.....
LS1 Block
Mahle Pistons 3.908
Eagle Rods w/ ARP 2000 bolts
LS6 Crank
PRC 5.3L Heads Stage 2.5
MS4 Cam
Ported FAST 102 w/ 102tb
Motor gets assembled this weekend. Already have brand new built trans thanks to rkt56.com . I have been making alot of progress and hope to have it ready for september. Car just sits as is with no motor. I need to drop subframe and bolt up new one with frame rails. I have some pics just let me know if you want some specifics.
LS1 Block
Mahle Pistons 3.908
Eagle Rods w/ ARP 2000 bolts
LS6 Crank
PRC 5.3L Heads Stage 2.5
MS4 Cam
Ported FAST 102 w/ 102tb
Motor gets assembled this weekend. Already have brand new built trans thanks to rkt56.com . I have been making alot of progress and hope to have it ready for september. Car just sits as is with no motor. I need to drop subframe and bolt up new one with frame rails. I have some pics just let me know if you want some specifics.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Man I'd love to replace my 90/90 setup with a 102. That is great looking and appears to be a way better engineered intake. You should be right in the 450whp area with that setup.
