bugjam1999
Member
- Joined
- Aug 18, 2015
Hi all,
A few questions about a swapping a turbo engine into a 1978 245, currently powered by a carb fed B21A.
Background ? I turbo swapped my car (1988 240, originally k-jet) back in 2015. I swapped in 2.4lh and have stuck with the original 13c turbo with the boost turned up. Late last year a friend bought a 1978 245 and quickly moved from ?I think I?ll keep it vaguely stock? to ?I?m definitely going to turbo it?. So far so good ? he bought a B230FK, an M90, a Volvo top entry and exit intercooler and a 2.4lh loom from a late 240.
Then, entering stage left with a flourish ? scope creep. Stripping the turbo down revealed that the wastegate seat was all but burnt away and the turbo was definitely not usable as is. During a search for a 13c/15G/16T something else popped up online ? a Holset HX35 on a custom exhaust manifold with oil feed and drain lines and complete exhaust (guy breaking his project car). Messages were exchanged and the setup bought. Leading on from the turbo purchase an NPR intercooler, IPD turbo cam and adjustable pulley, a 531 head, and a 012 MAF were also bought.
For now, the 530 head with t cam is staying on the engine as the 531 will be worked on a bit before install. We?ve made a start and swapped in a walbro pump with a later sender and run a new feed line.
I understand the majority of how to turboswap a 240 having done it myself before, but there are a few questions about this swap that have exceeded the limits of my knowledge ? comments welcomed on the points below:
1.) Speedo drive ? the early dash is cable driven and there?s no interest in swapping to the later style dash. I?ve seen threads on taking an early instrument cluster apart and transplanting in a later speedo behind the original speedo face, then swapping in a later rear axle to provide the signal required which could be done? but that?s a fair amount of work. Has anyone used a GPS to speedo drive emulator such as the one below to drive a speedo?
https://www.classicautoinnovations.com/classic
2.) 2.4lh and Holset? I don?t know, but my suspicion is that the collection of parts above and 2.4LH aren?t going to play very nicely together. Does anyone have experience with 2.4lh and a similar engine spec? All guidance on the management side of things gratefully received ? the guy who had this turbo before had a megasquirt setup, but he sold that separately.
3.) Related to the point above, the 012 MAF is far smaller than the inlet for the turbo ? I?ve seen threads with people making their own 3inch maf using the insides of a 016, could the insides of the 012 be used in a 4inch pipe as part of running the above engine using 2.4lh?
All comments gratefully received,
Cheers
A few questions about a swapping a turbo engine into a 1978 245, currently powered by a carb fed B21A.
Background ? I turbo swapped my car (1988 240, originally k-jet) back in 2015. I swapped in 2.4lh and have stuck with the original 13c turbo with the boost turned up. Late last year a friend bought a 1978 245 and quickly moved from ?I think I?ll keep it vaguely stock? to ?I?m definitely going to turbo it?. So far so good ? he bought a B230FK, an M90, a Volvo top entry and exit intercooler and a 2.4lh loom from a late 240.
Then, entering stage left with a flourish ? scope creep. Stripping the turbo down revealed that the wastegate seat was all but burnt away and the turbo was definitely not usable as is. During a search for a 13c/15G/16T something else popped up online ? a Holset HX35 on a custom exhaust manifold with oil feed and drain lines and complete exhaust (guy breaking his project car). Messages were exchanged and the setup bought. Leading on from the turbo purchase an NPR intercooler, IPD turbo cam and adjustable pulley, a 531 head, and a 012 MAF were also bought.
For now, the 530 head with t cam is staying on the engine as the 531 will be worked on a bit before install. We?ve made a start and swapped in a walbro pump with a later sender and run a new feed line.
I understand the majority of how to turboswap a 240 having done it myself before, but there are a few questions about this swap that have exceeded the limits of my knowledge ? comments welcomed on the points below:
1.) Speedo drive ? the early dash is cable driven and there?s no interest in swapping to the later style dash. I?ve seen threads on taking an early instrument cluster apart and transplanting in a later speedo behind the original speedo face, then swapping in a later rear axle to provide the signal required which could be done? but that?s a fair amount of work. Has anyone used a GPS to speedo drive emulator such as the one below to drive a speedo?
https://www.classicautoinnovations.com/classic
2.) 2.4lh and Holset? I don?t know, but my suspicion is that the collection of parts above and 2.4LH aren?t going to play very nicely together. Does anyone have experience with 2.4lh and a similar engine spec? All guidance on the management side of things gratefully received ? the guy who had this turbo before had a megasquirt setup, but he sold that separately.
3.) Related to the point above, the 012 MAF is far smaller than the inlet for the turbo ? I?ve seen threads with people making their own 3inch maf using the insides of a 016, could the insides of the 012 be used in a 4inch pipe as part of running the above engine using 2.4lh?
All comments gratefully received,
Cheers